Rate-based model for predicting and evaluating H2S absorption in the haloalkaliphilic biological desulfurization process

•The H2S absorption process was optimized for haloalkaliphilic biodesulfurization.•The primary factor affecting haloalkaliphilic H2S removal is the packing height.•The rate-based model can accurately predict H2S absorption in the HBDS system.•The developed model can effectively evaluate the stability of the HBDS system.