Eco Services Operations Corp., a wholly-owned subsidiary of Ecovyst, runs a sulfuric acid plant at 8615 Manchester Street in Houston, Harris County, Texas, that makes acid from elemental sulfur and regenerates spent acid. The site has onsite turbine generators and ERCOT lists a gas-fired generating unit at the Houston plant.

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Overview Profile Facility Permits and agreements Related records Timeline Sources

Overview

The site produces sulfuric acid by combusting elemental sulfur and by regenerating spent sulfuric acid received from petroleum refining and chemical processes, through two process units, PRO-UNIT8 and PRO-REGEN2. Eco Services applied to TCEQ to renew Air Quality Permit 19282 for continued operation of the plant.

Profile

Electricity and grid: ERCOT's capacity, demand and reserves report lists RHODIA HOUSTON PLANT, unit DG_HG_2UNITS, in Harris County in the Houston zone, as gas-fired with 8.20 MW. EPA's registry links the site to an EIA-860 electric generator at the Houston Plant. In 2023 both of the plant's turbine generators had mechanical faults, and the plant ran the smaller one with components from the larger.

Permits and water: TCEQ prepared a draft statement of basis for federal operating permit O3049 renewal on October 22, 2026, and has a commercial hazardous waste permit 50095 renewal application received March 8, 2022. Reusing turbine-generator condensate saved more than 5.8 million gallons of water in acid production.

Facility

Activity: Sulfuric acid production from elemental sulfur and regeneration of spent sulfuric acid
Industry: Industrial
Site type: Facility
Operating status: Operating
Reported Aug 20, 2026