Challenge A tank farm located in Texas needs to comply with TCEQ environmental regulations under 30 TAC Chapter 115 (Subchapter F, Division 3) now require that external vents on a Light Aromatic Distillate petroleum storage tank—containing Volatile Organic Compounds (VOCs) with true vapor pressure ≥ 0.5 psia—be sealed and degassed through a vapor‑tight recirculation system routed to an active control device, […]
Challenge A West Coast natural gas transmission and distribution company required inspection & maintenance on a segment of methane pipeline. That section of pipe would need to be drepressured/ evacuated and deinventoried prior to performing the required maintenance. The client did not want to release the natural gas into the atmosphere (~1 Million lbs CO2e), […]
Challenge There was a large plume of MTBE below grade near a waterway strait. Envent had been collecting ground water and treating it from this site for approximately 10 years but due to multiple years of drought ground water was no longer mobilizing large concentrations of MTBE for removal. Solution Envent was asked to provide […]
Challenge A customer in the Midwest needed to reduce noise coming from a natural gas pipeline blowdown. Pipeline blowdown operations can be very loud have the potential to disrupt the immediate area. The gaseous contents of the pipeline are at high pressure and when that pressure is under controlled release, creates an unpleasant rushing sound. ENVENT was called upon to assist […]
Challenge Contaminated water at a Northern California Refinery where groundwater must be extracted before it enters the bay. There is a series of groundwater wells and pumps that maintain hydraulic control of the area’s sub surface water system and prevent the contaminated water from reaching the Bay. The source of contamination was a Methyl tert-butyl […]
Challenge A customer was in need of a soil vapor extraction system for a project located within 2,000′ of a public school for a three month pilot project duration. The system was needed to scrub the following VOCs: BTEX, TCE and PCE. Upon successful completion of the pilot project, our customer could then determine […]
Challenge Envent provided vapor control on 5 temporary frac tanks during a tank cleaning. The source tank was emptied of a slop oil mixture. The product was going to be separated by a centrifuge into water, oil, and solid components. The temporary tanks in use accepted water/oil outputs and contained a heavy oil/sludge input […]
Challenge A customer at the Port of Brownsville was preparing a mid-sized high RVP gasoline tank for an API 653 inspection. The tank, which was fed by a pipeline, was assumed to be empty of product. However, upon further inspection by the client and their tank cleaning contractor, it was discovered that over one foot […]
Challenge A California refinery had a need to load gasoline, ethanol, and other high vapor pressure materials (classified as MVR products) onto barges. MVR products are required to have vapor control on them during transfer onto the vessel. The loading terminal is not equipped with any form of vapor recovery device on the dock. Without […]
Challenge A customer was facing EPA fines in the tens of thousands of dollars per day for the release of H2S and VOC’s to atmosphere from a tank not permitted to contain H2S-laden material. The customer reached out to Envent to solve the problem within a short deadline of three months. Solution Envent was […]
A Midwest refinery contracted Envent to provide degassing and vapor control services. The refinery planned a major turnaround and had multiple critical-path process units that needed industrial degassing and industrial vapor control services for safe entry into process vessels.
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