Reconstruction of an absorber for removal of hydrogen sulfide and carbon dioxide from natural gas

The absorber for removing hydrogen sulfide and carbon monoxide from natural gas with aqueous solutions of amine was rebuilt by specialists from Kedr-89 Scientific and Industrial Company together with workers from Astrakhan GPP. The essence of the reconstruction was to replace the bubble sieve trays with centrifugal trays and VAKUPAK structured packing. Industrial tests showed that the absorber with the new contact devices ensures output with respect to the gas in normal conditions of. desulfurized: 130,000 m(3)/h; separated, 196 - 200,000 m(3)/h. These indexes are 8 - 10% higher than the projected indexes. The hydrogen sulfide content in the treated gas is no greater than 0.0073 g/m(3) (admissible: 0.012 g/m(3)). The maximum carbon dioxide content in the treated gas is 2.68 ppm (standard: 150 ppm).