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 A Houston refinery reaches out to Envent to submit a competitive proposal amongst many other thermal oxidizing companies to assist in the cleaning and degassing an API Seperator. This tank is an underground-rectangular tank with an extrernal-floating roof. This tank has taken years of waste-water products from all over the refinery, which creates a […]
Envent provided equipment over a three-year span ranging from small carbon vessels all the way up to our 42 MMBTU/H EMECS42 Thermal Oxidizer along with three other Smaller thermal oxidizers.
Challenge During a turnaround for an Olefins Unit, a customer tasked Envent with providing a vapor control system to process stray hydrocarbon vapors while their normal vapor recovery system was down for maintenance. The customer’s unit superheaters were to be shut down for three months, and without a proper solution in place, the customer would […]
Challenge Due to the recent pandemic striking the world, a gulf coast refinery adjusted their refining process to allow them to continue production. They found a surplus of C4’s (n-butane, isobutane, etc) that typically sell with ease. During this process, multiple variations of C4’s are made from a single process. 1-3 Butadiene demand remained high, and […]
Challenge A west coast pipeline company requested Envent to provide vapor control during a pipeline purging process. Normally large vessels with adsorption media were proposed for this kind of job. However, due to the high pressure operation, either expensive high pressure vessels should be used or some devices should be installed to protect the regular […]
Challenge A Gulf Coast Refinery was faced with an emergency shutdown on one of their reactors, the catalyst was spent and needed immediate replacement, and it needed to be completed in time for their Alkylation unit was to be brought back online. The reactor needed to be cleaned in three separate phases in order to […]
Challenge We have a long term project located in Southern California where we are providing vapor control for tanker trucks being loaded with crude. We decided to use a TO as the carbon spend rate will be very high. The unit is always on hot standby. The challenge of this project comes from the inconsistency […]
Challenge A mid-west facility was under a time and regulatory constraint to reduce H2S emissions coming from a cold feed storage tank. There were many requirements that had to be met to sufficiently perform this job including having a high flow at the system. Envent had to figure out a way to knock out aerosol and oily […]
Challenge An underground gasoline pipeline had a leak that went undetected for an unknown duration that caused leaching into the ground. As a result of the volume of contaminated soil, strong gasoline odors were detected in the area. Those nuisance odors were affecting nearby neighborhoods causing community concern and complaints. Solution Envent scoped out the […]
Challenge A large gulf coast refinery was planning major equipment turnaround on multiple process units. While defining the scope of the work, they estimated that their Flare Header would quickly reach maximum capacity with vent gas from the process unit depressure and decontamination steps. The environmental department required the project to limit all emissions to […]
Challenge Envent was contracted to provide vapor control on two temporary storage tanks placed at a recovery and recycle area. The system abated vapors from temporary tanks that held rinse water. The water contained low levels of VOC founded in the vac truck rinse water and the roll-off bin rinse water. This project required a […]
