Challenge A customer in the Port of Brownsville; the tank was a mid-sized High RVP Gasoline tank with a pipeline feeding into it. The tank was due to come out of service for an API 653 inspection. The customer as well as cleaning company had assumed the tank to be product free, but upon closer […]
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Depressurization of a Panhandle LPG Pipeline
Challenge Envent was challenged with depressurizing a propane line, within the confines of a gulf coast refinery. The line measured over 2 miles, was above 200 psig, and was full of liquid propane gas. Envent needed to ensure the pipeline was cleared and ready for Hotwork within a 2 day time frame due to inclement […]
Golden Triangle Refinery Turnaround
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.
Gasoline Product Pipeline Degassing
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.
Midwest Refinery Turnaround Services
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.
Southern California Refinery Excess Fuel Gas Elimination Project
We believe Safety is No Accident.
Port Arthur Refinery, Flareless Hydrocracker Turnaround
Port Arthur refinery customer had to complete a flareless turnaround involving their Hydrocracker Unit. Envent mobilized three EMECS-42 thermal oxidizers, two ESCRUB-6000 recirculating scrubbers, and all associated safety equipment to complete the decommissioning.
Northern California Refinery, Sour Naptha Degas
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 to any personnel working at the refinery as well as to the surrounding community.
Emergency Response, Butadiene Pipeline Degassing Project, Texas.
Emergency Response Call-out to depressurize a 13 mile long section of 12 inch pipeline containing butadiene. Required to line depressurize from 250 PSIG to 0 PSIG. Envent engineered and was on-site within 2 hours, in the middle of the night.
Thermal Oxidizer vs IC Engine
A customer indicated a serious incident that had taken place in the facility a few weeks earlier while a degassing company was performing vapor control on a gasoline storage tank.