I&EC 421

Highsulf(tm) enhances gas sweetening and tail gas treatment processes

The family of newly patented HIGHSULF^TM processes was developed specifically to improve the efficiency of operation of amine or any other solvent based gas sweetening units. This concept contributes new page to the generic gas sweetening process, patented in 1931.

 HIGHSULF^TM increases CO₂ rejection in the absorber of amine gas sweetening units, increases the H₂S concentration in the acid gas of the amine unit and improves the efficiency of the Claus plant. It also significantly reduces hydrocarbons concentration in acid gas. 

HIGHSULF^TM is also applicable to amine based tail gas treating units. This process allows to reduce oxygen consumption in sulfur recovery units with oxygen injection in the front end.

 A significant advantage of HIGHSULF^TM is that you can attain the same level of CO₂ rejection with generic amines that are attained with specialty amines. 

This paper will include simulation results for a variety of cases.