Challenge An 80,000 bbl. /day crude distillation unit underwent a month long planned shutdown in order to perform maintenance on their exchangers, and pressure vessels. The shutdown began with the de-inventory and decon of the unit, often heralded as an unavoidable slow measure. Depressurizations, high flow nitrogen sweeps, and liquid deinventory can lead to many […]
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Gasoline Product Pipeline Degassing
Challenge A West Coast oil company needed to purge 20 miles of pipeline with crude and hydrogen sulfide vapors. The oil company needed a solution to vapor degas this large volume of crude and H2S vapor from this pipeline to allow pipeline repairs. Safe degassing of the vapors also ensured that odors and toxic vapors […]
Midwest Refinery Turnaround Services
Challenge 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. EPAs mandates and RSR vapor control regulations on flareless turnarounds required eliminating flaring activity and […]
Southern California Refinery Excess Fuel Gas Elimination Project
We believe Safety is No Accident.
Port Arthur Refinery, Flareless Hydrocracker Turnaround
Challenge A refinery customer had to complete a flareless turnaround involving their Hydrocracker Unit. The stricter emission limits imposed by the new Petroleum Refinery Sector Risk & Technology Review (RSR) regulations would not allow them to use the full capacity of their existing flare. This meant that they would take much longer than in the […]
Northern California Refinery, Sour Naptha Degas
Challenge In mid April 2016 a Northern California Refinery discovered a seal leak on a 145 ft. diameter x 75 ft. tall above ground external floating roof storage tank that was in Sour Naptha service. Due to the sour nature of the product in the tank, this seal leak presented substantial safety and environmental hazards […]
Emergency Response, Butadiene Pipeline Degassing Project, Texas.
Envent engineered and was on-site within 2 hours, in the middle of the night.
Thermal Oxidizer vs IC Engine
…for an IC Engine system to achieve the same flow rate, seven IC Engine units would be needed…
Tank Roof Collapse
Leave tank cleaning to the experts. Leave tank degassing to Envent.
Pyrophoric Tank Degassing
Envent brings experience to the project site. With experience comes the knowledge to ask the right questions.