In poly-generation and integrated gasificationcombined cycle(IGCC)systems for clean energy conversion,it is essential to remove impurities such as sulfur species from hot coal gases prior to entering the subsequent un...In poly-generation and integrated gasificationcombined cycle(IGCC)systems for clean energy conversion,it is essential to remove impurities such as sulfur species from hot coal gases prior to entering the subsequent units.This paper provides a comprehensive review on previous studies on high temperature removal of hydrogen sulfide from high temperature coal gases using iron-based sorbents.A two-step desulphurization process for hot coal gas cleanup is highlighted,which is integrated with direct production of elemental sulfur during regeneration of ironbased sorbents in the primary desulphurization step.Different kinetic modeling approaches for sulfidation and regeneration were compared.Limited research on activated carbon supported sorbents was also briefly summarized.展开更多
基金the financial support of the National Basic Research Program of China(Grant No.2005CB221203).
文摘In poly-generation and integrated gasificationcombined cycle(IGCC)systems for clean energy conversion,it is essential to remove impurities such as sulfur species from hot coal gases prior to entering the subsequent units.This paper provides a comprehensive review on previous studies on high temperature removal of hydrogen sulfide from high temperature coal gases using iron-based sorbents.A two-step desulphurization process for hot coal gas cleanup is highlighted,which is integrated with direct production of elemental sulfur during regeneration of ironbased sorbents in the primary desulphurization step.Different kinetic modeling approaches for sulfidation and regeneration were compared.Limited research on activated carbon supported sorbents was also briefly summarized.
