Results / Success Stories

LAB (Linear-Alquil Benzyl) Alkylation Unit, Spain
This project involved a petrochemical alky unit design, which blends paraffin and benzene. The polymerization reactions clogged the drainage system resulting in poor draining of products during the shutdown. Our ETI Cleaning and Gas Freeing Solution was used to neutralize an estimated six (6) tons of hydrofluoric acid left throughout the unit. The safety and health benefits gained with our process were immeasurable and showed how effective our process is at managing remaining acid. The client was able to work very efficiently on the unit and did not find any acid, proving the effectiveness of the EnvTech procedure, process and execution.


Refinery Flare Decontamination (Sulfide Removal), Finland
For this project, EnvTech was hired to decontaminate three (3) main flare headers including their stacks. Our team was asked to complete this project with a 24-hour timeline. Using our experienced staff of engineers and their expertise, we not only met the client’s timeline, but also completed this project with zero incidents.


Primaria II, Cadereyta, PEMEX (Mexico)
This is a 120,000 bbl/day integrated atmospheric and vacuum distillation process unit, which usually has a feedstock of 16 API crude (maya crude). The challenge was to decontaminate the tower for rapid entry and clean the exchangers, including preheat train (crude resid). The main goal of this project was to gain some time on the turnaround schedule, leaving the equipment as clean as possible, avoiding excessive hydro-blasting. In spite of the large size of the unit and the number of exchangers (approximately 120), the whole process took only 48 hours to complete and deliver the unit to maintenance; and the reduced time gained was approximately seven (7) days. We used our EcoSolvent (ETI-927) solution to successfully complete this project and we were able to demonstrate benefits of our cleaning process especially during the bundle extraction process. Most of the bundles pulled were found to be clean enough to simply inspect and reinstall, with no hydro blasting required. During this project, the number of bundles that required hydro blasting was reduced by 60%, providing our client with a significant cost reduction compared to the previous turnaround.

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