SULFUR-RECOVERY SOLUTIONS FOR SMALL-SCALE PETCHEM PROCESSING

摘要

Ongoing concern about the sulfur content of natural gas and processed fuels is leading to tighter regulations and more stringent standards for sulfur emissions from processing facilities. In particular, small-scale processing facilities are seeking effective solutions that are also economical. Fortunately, advances in technology and manufacturing make it possible for small processing plants to meet regulatory demands without massive capital investment. Sulfur recovery refers to the process of converting hydrogen sulfide (H2S), a byproduct of natural gas processing and crude oil refining, into elemental sulfur. The Claus process typically recovers between 90% and 95% of the sulfur, and the remainder is removed with additional steps. In the US, the Environmental Protection Agency (EPA) typically requires processors to consider the total mass of emissions, sulfur dioxide (SO2) recovery and stack effluent concentrations.