Gas Technology Institute

Timothy Tamale

Shiguang Li

Howard S Meyer

Dennis Leppin

Naomi Klinghoffer

Travis Pyrzynski

Ajay Makkuni

Processes and systems for the capture of COfrom a CO-containing gas stream are provided. The CO-containing gas stream is passed to a membrane contactor absorber wherein the CO-containing gas contacts or passes a first side of a membrane element while a COselective solvent with a viscosity between 0.2 and 7 cP contacts, passes or flows on second side of the membrane, opposed to the first side. The COpermeates through the hollow fiber membrane pores and is chemically absorbed into the solvent.

Membrane absorption process for COcapture

A process for removing sulfur dioxide from a hydrogen sulfide-containing gas utilizes a bubble tower and overcomes process control difficulties associated with known processes. Solvent is fed to the bubble tower, loaded with sulfur dioxide and maintained at desired temperature and pressure. Hydrogen sulfide-containing gas is bubbled through the solvent, causing chemical reaction between the sulfur dioxide and hydrogen sulfide to yield water and elemental sulfur. Elemental sulfur is collected and ultimately discharged from the bottom of the bubble tower, and hydrogen sulfide-depleted gas is discharged from the top.

Scavenging and tailgas process

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Chicago, IL, United States of America

Timothy Tamale