Spartan Energy and UCC Dry Sorbent Injection (UCC DSI) have worked together over the last two years to develop a novel, cost effective solution to reduce sulfur dioxide emissions associated with the oxidization of H2S extracted from a natural gas stream using an amine system. Emissions of H2S from a natural gas production facility are typically highly regulated by state environmental agencies and the Environmental Protection Agency. Typically, H2S is oxidized and converted into SO2. Various permitting requirements exist depending upon the amount of SO2 emissions. The DSI process can reduce emissions of SO2 by up to 90%.
The Spartan/UCC DSI developed process incorporates a traditional amine unit, a thermal oxidizer, and a DSI system to reduce SO2 emissions. Amine units are widely used in the oil and gas industry and DSI is widely used in the power generation industry.
This process was developed for high H2S applications, with limited access to sour gas infrastructure, as a way to minimize pollution and reduce costs associated with chemical scavengers. The combination of amine treating and DSI represents a middle ground between high variable cost/low fixed cost chemical scavenger solutions and high fixed cost/low variable cost Claus and liquid redox processes.

Primary Author:
Jon Byers
VP Corporate Development
Spartan Energy Partners LP

Colby Meyer
Spartan Energy Partners LP
The Woodlands, Texas

Jon Norman, PE, UCC Dry Sorbent Injection, LLC, Waukegan, IL