Shell unveils gas biodesulfurization process

10/11/1999
Shell International Oil Products is looking to convince gas processors that a new bacteria-based sulfur removal process is as reliable as conventional methods.The Shell-Paques Gas Desulfurization Process was conceived by small Dutch firm Paques Bio Systems BV, but the two companies have been working for the last 4 years to develop the technology.Pierre van Grinsven, business group manager, gas treatment, at Shell, told OGJ the process uses naturally occurring thiobacillus bacteria to remove hydrogen sulfide from natural gas by converting it to sulfur.A conventional hydrodesulfurization plant comprises an amine scrubbing unit, a Claus unit, and a Claus tail gas unit; the Shell-Paques proce...
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