Overview

The Contractor of Choice

Primoris Engineering is comprised of highly qualified personnel and registered professional engineers providing the full array of engineering services capable of providing complete in-house engineering services with the ability to utilize high-value engineering centers if needed. Primoris Engineering services both downstream and midstream energy sectors including refining, petrochemical, blue/gray hydrogen, syngas, LNG, GTL, biodiesel, renewable natural gas, and midstream pipelines, processing facilities, terminals, and gathering systems.

Primoris Design & Construction

We have extensive experience in the early project development phases (FEL 1, FEL 2 and FEL 3), helping clients develop and evaluate their projects, by providing conceptual designs, capital cost estimates, and utility/energy consumption to find the most cost-effective solution. We provide these services for both grass roots and brownfield expansion projects and have the capability to continue the project through EPC execution. All of these services can be provided under one contract, on a reimbursable, fixed price or hybrid contract basis.

Our engineering services also include a fully integrated surveying and mapping team that specializes in laser scanning, topography survey, corridor survey, drone imagery, and construction staking. We work closely with our clients and provide these services very early in the planning/feasibility phases of the project, ensuring no surprises develop during FEED or execution.

About Us

Primoris Engineering is a wholly owned subsidiary of Primoris Services Corporation, part of Primoris’ Energy Sector, based in Tyler, Texas, and Houston, Texas. Primoris Engineering is supported by the global resources and financial support of our parent company, Primoris, a leading infrastructure and energy services provider.

Our core staff of professional engineers and designers have been working together for an average of over 25 years. These individuals encompass the experience that allows us to achieve our goal of building loyalty and key, long-term relationships with our clients. We trust our clients will seek us out for our reputation as a truly integrated EPC firm.

Primoris Engineering is a project-oriented provider of hydrocarbon processing units. We offer single source accountability for EPC projects, while also performing detailed designs for third-party licensor processes. The company teams with Primoris’ strong construction subsidiaries, which provides a competitive edge unparalleled in the current market.

Projects

Coker Debottleneck Project
Primoris Engineering performed unit modifications on the...
Corpus Christi, TX

Coker Debottleneck Project

Primoris Engineering performed unit modifications on the Coker Unit which increased unit throughput to 19,000 BPSD. The scope of work included process design, detailed engineering, and procurement services for new/replacement equipment, vessel repairs, new foundations, pipe fabrication, miscellaneous pipe supports, structural steel fabrication, new / replacement instrumentation, a new heater radiant section and air preheater. The project also included a new steam generator, pumps, and tower internals.

Primoris Design & Construction performed unit modifications on the Coker Unit which increased unit throughput to 19,000 BPSD. The scope of work included process design, detailed engineering, and procurement services for new/replacement equipment, vessel repairs, new foundations, pipe fabrication, miscellaneous pipe supports, structural steel fabrication, new / replacement instrumentation, a new heater radiant section and air preheater. The project also included a new steam generator, pumps, and tower internals.

Primoris Design & Construction performed unit modifications on the Coker Unit which increased unit throughput to 19,000 BPSD. The scope of work included process design, detailed engineering, and procurement services for new/replacement equipment, vessel repairs, new foundations, pipe fabrication, miscellaneous pipe supports, structural steel fabrication, new / replacement instrumentation, a new heater radiant section and air preheater. The project also included a new steam generator, pumps, and tower internals.

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Dairy Farm Waste to Diesel Fuel
This Biogas to Liquids Plant is a new 30 BPD renewable...
Wisconsin

Dairy Farm Waste to Diesel Fuel

This Biogas to Liquids Plant is a new 30 BPD renewable diesel facility. Primoris Design & Construction was awarded engineering, procurement, and fabrication services. The facility converts methane from dairy farm digesters into renewable diesel fuel and stabilized naphtha. The project includes Syngas Unit, GTL Section, and Fractionation Section. This process significantly reduces the impact to the environment by increasing the sustainability of the dairy farm and producing high-quality transportation fuels with zero sulfur emissions. In addition to dairy farms, these units can be installed at any biogas source, including swine farms, poultry farms, landfills, food waste facilities and wastewater facilities.

This Biogas to Liquids Plant is a new 30 BPD renewable diesel facility. Primoris Design & Construction was awarded engineering, procurement, and fabrication services. The facility converts methane from dairy farm digesters into renewable diesel fuel and stabilized naphtha. The project includes Syngas Unit, GTL Section, and Fractionation Section. This process significantly reduces the impact to the environment by increasing the sustainability of the dairy farm and producing high-quality transportation fuels with zero sulfur emissions. In addition to dairy farms, these units can be installed at any biogas source, including swine farms, poultry farms, landfills, food waste facilities and wastewater facilities.

This Biogas to Liquids Plant is a new 30 BPD renewable diesel facility. Primoris Design & Construction was awarded engineering, procurement, and fabrication services. The facility converts methane from dairy farm digesters into renewable diesel fuel and stabilized naphtha. The project includes Syngas Unit, GTL Section, and Fractionation Section. This process significantly reduces the impact to the environment by increasing the sustainability of the dairy farm and producing high-quality transportation fuels with zero sulfur emissions. In addition to dairy farms, these units can be installed at any biogas source, including swine farms, poultry farms, landfills, food waste facilities and wastewater facilities.

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Diamond Green Diesel 2 OSBL
The facility is a new 30,000 BPD renewable diesel unit that...
Norco, LA

Diamond Green Diesel 2 OSBL

The facility is a new 30,000 BPD renewable diesel unit that converts animal fats, used cooking oil and inedible corn oil into renewable diesel fuel. Primoris Design & Construction performed OSBL EPC services including fat, naphtha, and green diesel storage tank facilities, reverse osmosis unit, amine regeneration unit, pumping facilities at the pipeline interfaces, new piping, electrical, and instrumentation.

The facility is a new 30,000 BPD renewable diesel unit that converts animal fats, used cooking oil and inedible corn oil into renewable diesel fuel. Primoris Design & Construction performed OSBL EPC services including fat, naphtha, and green diesel storage tank facilities, reverse osmosis unit, amine regeneration unit, pumping facilities at the pipeline interfaces, new piping, electrical, and instrumentation.

The facility is a new 30,000 BPD renewable diesel unit that converts animal fats, used cooking oil and inedible corn oil into renewable diesel fuel. Primoris Design & Construction performed OSBL EPC services including fat, naphtha, and green diesel storage tank facilities, reverse osmosis unit, amine regeneration unit, pumping facilities at the pipeline interfaces, new piping, electrical, and instrumentation.

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FCC Slurry Filtration Project FEL 3
Primoris Design & Construction performed FEL 2 and FEL 3...
Houston, TX

FCC Slurry Filtration Project FEL 3

Primoris Design & Construction performed FEL 2 and FEL 3 engineering for a new Slurry Filtration Project. The scope of work included process design, detailed engineering, and FEL estimating services for a new modular processing facility including integration of the filtration process into the existing refinery process.

Primoris Design & Construction performed FEL 2 and FEL 3 engineering for a new Slurry Filtration Project. The scope of work included process design, detailed engineering, and FEL estimating services for a new modular processing facility including integration of the filtration process into the existing refinery process.

Primoris Design & Construction performed FEL 2 and FEL 3 engineering for a new Slurry Filtration Project. The scope of work included process design, detailed engineering, and FEL estimating services for a new modular processing facility including integration of the filtration process into the existing refinery process.

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Gasoline Desulfurization Unit (GDU)
Primoris Design & Construction performed FEL 2, FEL 3...
Ardmore, OK

Gasoline Desulfurization Unit (GDU)

Primoris Design & Construction performed FEL 2, FEL 3, Detailed Engineering, Procurement, and Field Support for the 16,500 BPD GDU project. The purpose of this FCC GDU is to reduce the sulfur content to 10 ppm, while minimizing octane loss, of three different composition FCC gasoline feed streams and a straight run naphtha feed by utilizing Axens’ Prime G+ Technology. The process uses a selective catalyst in a Selective Hydrogenation Unit (SHU) Reactor maintaining octane which then passes through the Hydrodesulfurization Reactor (HDS Reactor) where sulfur is removed while olefin saturation is kept to a minimum in order to retain octane. Following distillation and further desulfurization, the products are then used directly as a gasoline blending stock.

Primoris Design & Construction performed FEL 2, FEL 3, Detailed Engineering, Procurement, and Field Support for the 16,500 BPD GDU project. The purpose of this FCC GDU is to reduce the sulfur content to 10 ppm, while minimizing octane loss, of three different composition FCC gasoline feed streams and a straight run naphtha feed by utilizing Axens’ Prime G+ Technology. The process uses a selective catalyst in a Selective Hydrogenation Unit (SHU) Reactor maintaining octane which then passes through the Hydrodesulfurization Reactor (HDS Reactor) where sulfur is removed while olefin saturation is kept to a minimum in order to retain octane. Following distillation and further desulfurization, the products are then used directly as a gasoline blending stock.

Primoris Design & Construction performed FEL 2, FEL 3, Detailed Engineering, Procurement, and Field Support for the 16,500 BPD GDU project. The purpose of this FCC GDU is to reduce the sulfur content to 10 ppm, while minimizing octane loss, of three different composition FCC gasoline feed streams and a straight run naphtha feed by utilizing Axens’ Prime G+ Technology. The process uses a selective catalyst in a Selective Hydrogenation Unit (SHU) Reactor maintaining octane which then passes through the Hydrodesulfurization Reactor (HDS Reactor) where sulfur is removed while olefin saturation is kept to a minimum in order to retain octane. Following distillation and further desulfurization, the products are then used directly as a gasoline blending stock.

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Chautauqua Green Energy Landfill Project
Primoris executed the front-end engineering, detailed...
Chautauqua, NY

Chautauqua Green Energy Landfill Project

Primoris executed the front-end engineering, detailed engineering, procurement, and construction of this project. The landfill was producing power and is now converted to RNG production. Primoris’ OnQuest office in San Dimas, California lead the EPC execution and worked with local construction contractors for the field construction activities. Primoris is a leader in the design and execution of renewable energy projects.

Primoris executed the front-end engineering, detailed engineering, procurement, and construction of this project. The landfill was producing power and is now converted to RNG production. Primoris’ OnQuest office in San Dimas, California lead the EPC execution and worked with local construction contractors for the field construction activities. Primoris is a leader in the design and execution of renewable energy projects.

Primoris executed the front-end engineering, detailed engineering, procurement, and construction of this project. The landfill was producing power and is now converted to RNG production. Primoris’ OnQuest office in San Dimas, California lead the EPC execution and worked with local construction contractors for the field construction activities. Primoris is a leader in the design and execution of renewable energy projects.

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10 MMSCFD Hydrogen Unit
Primoris Design & Construction utilized steam-methane...
Cheyenne, WY

10 MMSCFD Hydrogen Unit

Primoris Design & Construction utilized steam-methane reforming, where desulfurized natural gas feed is mixed with high-pressure steam and passed through catalyst-filled tubes to produce hydrogen-rich gas which is then purified to 99.99% by Pressure Swing Adsorption (PSA). PD&C’s scope of supply included ISBL (Inside Battery Limits) specification, supply, and complete installation of all components of this modular, greenfield project. PD&C engineers have 30+ years of experience in hydrogen plant design.

Primoris Design & Construction utilized steam-methane reforming, where desulfurized natural gas feed is mixed with high-pressure steam and passed through catalyst-filled tubes to produce hydrogen-rich gas which is then purified to 99.99% by Pressure Swing Adsorption (PSA). PD&C’s scope of supply included ISBL (Inside Battery Limits) specification, supply, and complete installation of all components of this modular, greenfield project. PD&C engineers have 30+ years of experience in hydrogen plant design.

Primoris Design & Construction utilized steam-methane reforming, where desulfurized natural gas feed is mixed with high-pressure steam and passed through catalyst-filled tubes to produce hydrogen-rich gas which is then purified to 99.99% by Pressure Swing Adsorption (PSA). PD&C’s scope of supply included ISBL (Inside Battery Limits) specification, supply, and complete installation of all components of this modular, greenfield project. PD&C engineers have 30+ years of experience in hydrogen plant design.

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RDU Project Hydrogen Revamp
Primoris Design & Construction performed engineering...
Northwestern United States

RDU Project Hydrogen Revamp

Primoris Design & Construction performed engineering services to revamp the existing Hydrogen Unit to process an off-gas feed stream from the new Renewable Diesel Unit upgrade. The project included adding hydrotreating capability, SMR burner modifications, new instrumentation and Pressure Swing Adsorption unit revamp to allow processing of a RDU purge gas stream for additional hydrogen recovery.

Primoris Design & Construction performed engineering services to revamp the existing Hydrogen Unit to process an off-gas feed stream from the new Renewable Diesel Unit upgrade. The project included adding hydrotreating capability, SMR burner modifications, new instrumentation and Pressure Swing Adsorption unit revamp to allow processing of a RDU purge gas stream for additional hydrogen recovery.

Primoris Design & Construction performed engineering services to revamp the existing Hydrogen Unit to process an off-gas feed stream from the new Renewable Diesel Unit upgrade. The project included adding hydrotreating capability, SMR burner modifications, new instrumentation and Pressure Swing Adsorption unit revamp to allow processing of a RDU purge gas stream for additional hydrogen recovery.

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Refinery Expansion
Primoris Design & Construction performed FEL 2, FEL 3...
Sunray, TX

Refinery Expansion

Primoris Design & Construction performed FEL 2, FEL 3, Detailed Engineering, Equipment and Material Procurement and Full Site Construction for expansion of the refinery capacity from 162,000 to 187,000 BPSD. PD&C’s scope included the EPC revamp for two Crude/ Vacuum Units. The No. 1 Crude Unit charge rate was increased by 10,000 BPD from 60,000 BPD to 70,000 BPD and the No. 2 Crude Unit charge rate was increased by 15,000 BPD from 102,000 BPD to 117,000 BPD. The Crude Unit revamp also included a new preflash tower, new charge pumps, and a completely redesigned preheat train utilizing helical-baffled exchangers. An additional 6,000 BPD capacity was added to the Naphtha Hydrotreaters (NHT). Modifications to the NHTs included replacement of the Stripper Feed Pumps and HDS Pumps, Feed Stripper packing, additional Reactor catalyst, high capacity desulfurization trays, and additional air cooling.

Primoris Design & Construction performed FEL 2, FEL 3, Detailed Engineering, Equipment and Material Procurement and Full Site Construction for expansion of the refinery capacity from 162,000 to 187,000 BPSD. PD&C’s scope included the EPC revamp for two Crude/ Vacuum Units. The No. 1 Crude Unit charge rate was increased by 10,000 BPD from 60,000 BPD to 70,000 BPD and the No. 2 Crude Unit charge rate was increased by 15,000 BPD from 102,000 BPD to 117,000 BPD. The Crude Unit revamp also included a new preflash tower, new charge pumps, and a completely redesigned preheat train utilizing helical-baffled exchangers. An additional 6,000 BPD capacity was added to the Naphtha Hydrotreaters (NHT). Modifications to the NHTs included replacement of the Stripper Feed Pumps and HDS Pumps, Feed Stripper packing, additional Reactor catalyst, high capacity desulfurization trays, and additional air cooling.

Primoris Design & Construction performed FEL 2, FEL 3, Detailed Engineering, Equipment and Material Procurement and Full Site Construction for expansion of the refinery capacity from 162,000 to 187,000 BPSD. PD&C’s scope included the EPC revamp for two Crude/ Vacuum Units. The No. 1 Crude Unit charge rate was increased by 10,000 BPD from 60,000 BPD to 70,000 BPD and the No. 2 Crude Unit charge rate was increased by 15,000 BPD from 102,000 BPD to 117,000 BPD. The Crude Unit revamp also included a new preflash tower, new charge pumps, and a completely redesigned preheat train utilizing helical-baffled exchangers. An additional 6,000 BPD capacity was added to the Naphtha Hydrotreaters (NHT). Modifications to the NHTs included replacement of the Stripper Feed Pumps and HDS Pumps, Feed Stripper packing, additional Reactor catalyst, high capacity desulfurization trays, and additional air cooling.

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Yosemite Clean Energy Biomass Project
Primoris performed the front-end engineering on Yosemite’s...
California

Yosemite Clean Energy Biomass Project

Primoris performed the front-end engineering on Yosemite’s Clean Energy renewable biofuels project. The facility will use gasification technology to convert farm and forest wood waste to syngas and ultimately into carbon-negative, green hydrogen and renewable natural gas (RNG).

Primoris’ Energy/Renewables segment will execute the work using our extensive experience in syngas, hydrogen and renewable natural gas production.

Primoris performed the front-end engineering on Yosemite’s Clean Energy renewable biofuels project. The facility will use gasification technology to convert farm and forest wood waste to syngas and ultimately into carbon-negative, green hydrogen and renewable natural gas (RNG).

Primoris’ Energy/Renewables segment will execute the work using our extensive experience in syngas, hydrogen and renewable natural gas production.

Primoris performed the front-end engineering on Yosemite’s Clean Energy renewable biofuels project. The facility will use gasification technology to convert farm and forest wood waste to syngas and ultimately into carbon-negative, green hydrogen and renewable natural gas (RNG).

Primoris’ Energy/Renewables segment will execute the work using our extensive experience in syngas, hydrogen and renewable natural gas production.

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Renewable Diesel Unit
Primoris Design & Construction performed FEL 2 and FEL 3...
Western United States

Renewable Diesel Unit

Primoris Design & Construction performed FEL 2 and FEL 3 engineering for a Renewable Diesel (RDU) Project. The scope of work included process design development using Haldor Topsoe technology, completion of the FEL-3 design development, and developing the detailed TIC estimate for the new processing facility. PD&C engineering teams worked closely with Haldor Topsoe to provide value engineered solutions for improved operability and cost savings.

Primoris Design & Construction performed FEL 2 and FEL 3 engineering for a Renewable Diesel (RDU) Project. The scope of work included process design development using Haldor Topsoe technology, completion of the FEL-3 design development, and developing the detailed TIC estimate for the new processing facility. PD&C engineering teams worked closely with Haldor Topsoe to provide value engineered solutions for improved operability and cost savings.

Primoris Design & Construction performed FEL 2 and FEL 3 engineering for a Renewable Diesel (RDU) Project. The scope of work included process design development using Haldor Topsoe technology, completion of the FEL-3 design development, and developing the detailed TIC estimate for the new processing facility. PD&C engineering teams worked closely with Haldor Topsoe to provide value engineered solutions for improved operability and cost savings.

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AMP Americas Biogas Processing Facility
Commissioning three biogas preprocessing facilities - one at...
Morris, MN

AMP Americas Biogas Processing Facility

Commissioning three biogas preprocessing facilities - one at each farm site - a Central Processing Facility, the interconnecting pipeline, and the product line to the pipeline owner’s metering skid.

Commissioning three biogas preprocessing facilities - one at each farm site - a Central Processing Facility, the interconnecting pipeline, and the product line to the pipeline owner’s metering skid.

Commissioning three biogas preprocessing facilities - one at each farm site - a Central Processing Facility, the interconnecting pipeline, and the product line to the pipeline owner’s metering skid.

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Clean Energy CA Natural Gas Liquefaction Plant
Primoris was retained to design and build a completely new...
Boron, CA

Clean Energy CA Natural Gas Liquefaction Plant

Primoris was retained to design and build a completely new natural gas liquefaction and distribution facility in Boron, California. Primoris was responsible for the engineering, design, supply of equipment/materials, and union construction of a 240,000 GPD natural gas liquefaction and distribution facility, designed to expand production as demand increases. The LNG production plant was the largest in the Southwest and the first large-scale plant in California.

Primoris was retained to design and build a completely new natural gas liquefaction and distribution facility in Boron, California. Primoris was responsible for the engineering, design, supply of equipment/materials, and union construction of a 240,000 GPD natural gas liquefaction and distribution facility, designed to expand production as demand increases. The LNG production plant was the largest in the Southwest and the first large-scale plant in California.

Primoris was retained to design and build a completely new natural gas liquefaction and distribution facility in Boron, California. Primoris was responsible for the engineering, design, supply of equipment/materials, and union construction of a 240,000 GPD natural gas liquefaction and distribution facility, designed to expand production as demand increases. The LNG production plant was the largest in the Southwest and the first large-scale plant in California.

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Naval Station Guantanamo Bay LNG Facility
Primoris' work on the Naval Station Guantanamo Bay LNG...
Guantanamo Bay, Cuba

Naval Station Guantanamo Bay LNG Facility

Primoris' work on the Naval Station Guantanamo Bay LNG Facility project, included the procurement of four large bullet LNG storage tanks each with a capacity of 265,000 gallons, an LNG off-loading system, a 1,000-feet sub-sea pipeline, and LNG regasification system to supply natural gas to the Navy’s new power plant. Various additional improvements have been recommended by Primoris including the planned addition of Boil-Off Gas compressors and a flare, as well as other process improvements identified by Primoris.

Primoris' work on the Naval Station Guantanamo Bay LNG Facility project, included the procurement of four large bullet LNG storage tanks each with a capacity of 265,000 gallons, an LNG off-loading system, a 1,000-feet sub-sea pipeline, and LNG regasification system to supply natural gas to the Navy’s new power plant. Various additional improvements have been recommended by Primoris including the planned addition of Boil-Off Gas compressors and a flare, as well as other process improvements identified by Primoris.

Primoris' work on the Naval Station Guantanamo Bay LNG Facility project, included the procurement of four large bullet LNG storage tanks each with a capacity of 265,000 gallons, an LNG off-loading system, a 1,000-feet sub-sea pipeline, and LNG regasification system to supply natural gas to the Navy’s new power plant. Various additional improvements have been recommended by Primoris including the planned addition of Boil-Off Gas compressors and a flare, as well as other process improvements identified by Primoris.

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Stabilis LNG Production Facility
Primoris was awarded a contract from joint venture partners...
Three Rivers, TX

Stabilis LNG Production Facility

Primoris was awarded a contract from joint venture partners to provide a turnkey scope for an initial 100,000 GPD train of liquefied natural gas (LNG), and distribution facility in George West, Texas. The project included engineering, design, supply of equipment/materials, and construction of a 100,000 GPD liquefied natural gas and distribution facility. The plant addresses the demand for a reliable and safe supply of high horsepower fuel to the Eagle Ford Shale basin in Texas.

The plant is designed to compress pipeline quality gas, remove carbon dioxide and water and liquefy the treated gas. Liquefaction is carried out in a cold box using a nitrogen-based refrigeration system designed and supplied by Chart Industries. The product LNG is stored in three 90,000-gallon ASME vessels. The facility has the capability of loading LNG truck trailers. Chart Industries provided cryogenic technology and liquefaction equipment.

Primoris was awarded a contract from joint venture partners to provide a turnkey scope for an initial 100,000 GPD train of liquefied natural gas (LNG), and distribution facility in George West, Texas. The project included engineering, design, supply of equipment/materials, and construction of a 100,000 GPD liquefied natural gas and distribution facility. The plant addresses the demand for a reliable and safe supply of high horsepower fuel to the Eagle Ford Shale basin in Texas.

The plant is designed to compress pipeline quality gas, remove carbon dioxide and water and liquefy the treated gas. Liquefaction is carried out in a cold box using a nitrogen-based refrigeration system designed and supplied by Chart Industries. The product LNG is stored in three 90,000-gallon ASME vessels. The facility has the capability of loading LNG truck trailers. Chart Industries provided cryogenic technology and liquefaction equipment.

Primoris was awarded a contract from joint venture partners to provide a turnkey scope for an initial 100,000 GPD train of liquefied natural gas (LNG), and distribution facility in George West, Texas. The project included engineering, design, supply of equipment/materials, and construction of a 100,000 GPD liquefied natural gas and distribution facility. The plant addresses the demand for a reliable and safe supply of high horsepower fuel to the Eagle Ford Shale basin in Texas.

The plant is designed to compress pipeline quality gas, remove carbon dioxide and water and liquefy the treated gas. Liquefaction is carried out in a cold box using a nitrogen-based refrigeration system designed and supplied by Chart Industries. The product LNG is stored in three 90,000-gallon ASME vessels. The facility has the capability of loading LNG truck trailers. Chart Industries provided cryogenic technology and liquefaction equipment.

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HEADQUARTERS

Tyler Office
6101 S Broadway Ave.
Suite 200
Tyler, TX 75703
Phone: 903.730.9400
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