Understand the impact of hydrocarbon coabsorption losses on gas plant revenues

P. Chilukuri, Shell Global Solutions, Amsterdam, The Netherlands; and A. Bhattacharya, Shell Global Solutions, Bangalore, India Gas development projects face growing challenges from increasingly sour resources with relatively high levels of carbon dioxide (CO2), hydrogen sulfide (H2S), mercaptans and carbonyl sulfide (COS), as well as tighter sales specifications and stricter environmental emissions standards. The removal of trace components, such as COS and thiol (RSH), can have a detrimental effect on project value, as considerable capital expenditures (CAPEX) and operational expenditures (OPEX) investments must be made. Predominantly, mercaptans are either removed in an acid gas remova