Helping Clear the Air in Salt Lake City



Emissions take a bath, thanks to best-in-class technology.


Andeavor’s Salt Lake City Refinery is the largest in Utah. It processes crude oil into the gasoline, diesel and jet fuel that we use every day to work, play and spend quality time with the ones we love.


In Salt Lake City, the geography poses a unique challenge when it comes to air quality. Because the city is surrounded by mountains, it experiences winter inversions, a weather condition that can trap emissions lower to the ground.


To do our part in helping clear the air, Andeavor recently installed a wet gas scrubber. It’s a piece of best-in-class technology that efficiently cleans the air from our refining processes. We’ve produced the short video below to help illustrate the solution and why it’s an important addition.



On the outside, neighbors might recognize the wet gas scrubber as a tall silver tower emitting a white cloud. On the inside though, you’ll find a water mist spray that captures sulfur and dust particles and keeps them in the Refinery’s system for further treatment instead of being released into the air. The cloud leaving the stack is heated water in the form of vapor – steam.  


The wet gas scrubber reduces the refinery’s particulate emissions to virtually zero, while sulfur dioxide and nitrogen oxide levels are cut by 95 percent and 60 percent, respectively, over pre-scrubber levels.


It’s efficient and effective. And it’s only one of the most recent ways Andeavor has made improvements to help protect and preserve the environment. In fact, we achieved a 35 percent reduction in all air emissions from our facilities from 2014 to 2017.


The next project Andeavor is tackling in Utah will do even more to improve the air quality in Salt Lake City. The Refinery is currently expanding its hydrotreater to remove more sulfur from the gasoline we produce locally and meet new EPA standards surrounding Tier 3 Gasoline. Tier 3 gasoline enables a car’s catalytic converter to run better, reducing emissions on all vehicles that use it – as much as 81 percent on newer vehicles.