About Merichem®

Merichem® is a global leader in full-service sulfur removal, caustic treating and spent caustic treatment technologies. Merichem® also provides spent caustic handling services as an alternative to technology solutions. Our reputation stands on principles of proven performance, unsurpassed expertise and an uncommon commitment to our customers.

Our Focus Is You

With an extensive history of providing spent caustic services, process technology, engineering, and equipment to the oil and gas industry, there are few problems we haven’t solved. Even so, we treat every challenge as unique and strive to provide our customers with optimal solutions. We listen, think and innovate in a responsive manner with the intent of building relationships that endure. Our approach has resulted in Merichem’s ongoing evolution.

Comprehensive and Proven Capabilities

Contaminants stand in the way of your performance and profitability. Merichem® is in the business of effectively removing impurities for upstream, midstream and downstream, and petrochemicals companies. Through engineering, design, fabrication, testing, analytics, technology and service, we develop proprietary solutions guaranteed to meet your specifications, performance and warranty requirements. We also provide safe and reliable handling of spent caustics, supported by our own flexible array of supply chain options.

Built on Sustainability

We are a leader in the beneficial reuse and recycling of spent caustics, turning would-be waste into valuable and viable commodities for our customers. We’re committed to operating in a safe, responsible and cost-effective manner—and we’ve proven it daily.

Company History

Founded in 1945, Merichem® has a long relationship within the oil and gas industry as well as a long history of innovation. We pioneered the recovery of cresylic acids from heavy FCC spent caustics and in the 70s, invested in our own barges, developed our revolutionary FIBER FILM® extraction process and acquired the John T. Files Technical Center for its research and development initiatives. Acquisitions and steady global growth followed, as we expanded our capabilities to include chemical manufacturing as well as fabrication capabilities for our modules and proprietary equipment. Today, Merichem® continues its innovative success, granting over 1,250 technical licenses to operate various technology offerings and transforming its caustic management services, providing our clients with consistently flexible and reliable service.

At Merichem®, we’ve spent over 75 years delivering innovative solutions to our customers through robust technologies, excellence in service and sustainability solutions.

Have a problem?
Let’s go straight to the answer.

Select from the drop-down menu below to match the right technology, service or chemical to your challenge.

RSH Sweetening
Acids / Acid Esters Removal
Amine Removal
Caustic Regeneration
CO2 Removal
COD Reduction
COS Removal
Digestor gas from agricultural plants
Elemental Sulfur Removal
Forestry waste, used cooking oil, animal-fat feedstocks
Garbage-to-fuel processes
Garbage-to-power processes
H2S Removal
Landfill gas
Liquid Extraction
Liquid Mass Transfer Equipment
NaHS Removal
NaOH Removal
Naphthenic/Organic Acids (RCOOH) Removal
Off-spec Chemical Removal
pH Neutralization Chemical
Renewable diesel refining
RSH Removal
RSH Sweetening
Soda Makeup Chemical
Solvent Extraction
Spent Caustic Management / Removal
Spent Caustic Neutralization
Spent Caustic Treatment
Sulfur Makeup Chemical
Synthesis gas (syngas)
Water Soluble Oxygenates Removal

North America

  • 5 AMINEX Units
  • 21 AQUAFINING Units
  • 126 LO-CAT® Units
  • 70 MERICAT Units
  • 13 MERICAT II / J Units
  • 2 MERICON Units
  • 19 NAPFINING Units
  • 26 REGEN® Units
  • 153 THIOLEX Units

South America

  • 3 AMINEX Units
  • 14 AQUAFINING Units
  • 8 LO-CAT® Units
  • 4 MERICAT Units
  • 6 MERICAT II / J Units
  • 8 MERICON Units
  • 12 NAPFINING Units
  • 8 REGEN® Units
  • 26 THIOLEX Units


  • 1 AQUAFINING Units
  • 3 LO-CAT® Units
  • 1 MERICAT Units
  • 1 MERICAT II / J Units
  • 4 NAPFINING Units
  • 1 REGEN® Units
  • 2 THIOLEX Units


  • 6 AMINEX Units
  • 23 AQUAFINING Units
  • 29 LO-CAT® Units
  • 21 MERICAT Units
  • 10 MERICAT II / J Units
  • 5 MERICON Units
  • 14 NAPFINING Units
  • 6 REGEN® Units
  • 43 THIOLEX Units


  • 18 AMINEX Units
  • 44 AQUAFINING Units
  • 52 LO-CAT® Units
  • 59 MERICAT Units
  • 22 MERICAT II / J Units
  • 20 MERICON Units
  • 32 NAPFINING Units
  • 20 REGEN® Units
  • 121 THIOLEX Units


  • 2 AQUAFINING Units
  • 9 LO-CAT® Units
  • 2 MERICON Units
  • 2 NAPFINING Units
  • 1 THIOLEX Units
  • LO-CAT®

Delivering Proven Solutions Worldwide

Merichem® solutions are global. With multinational offices and facilities, technology and service, products and expertise—we’re responsive and accessible.

Industry Partnerships

Merichem® is proud to partner with leading industry organizations

Sustainability and Safety Achievements

Chemical Transportation Safety Pinnacle Award

Union Pacific Railroad, 2017

First Place Safety Award

Presented by Manufacture Alabama for zero recordable incidents and no lost-time workdays—seventh award in nine years

Occupational Excellence Achievement Award

Recognized a zero OSHA recordable rate, maintained for three years

National Safety Council

Recognized for Merichem® Process Technology facility in Houston, Texas (in conjunction with Jacobs)

Beyond Zero Significant Milestone

Awarded to Merichem® Process Technology by Jacobs

10 Years Without Recordable Injury or Lost Time

Merichem® celebrated 10 years without a recordable injury or lost time (OST)

RideTight® Fluid-Sealing Management Program

RideTight’s fluid-sealing management program has been implemented on our rail cars