Industrial Zeolitic Isomerization Catalysts and Processes

The earliest industrial zeolitic isomerization process was the Hysomer process, formerly offered for license by Shell. Currently UOP offers a zeolite- and Pt-con-taining catalyst HS-10 in the fixed-bed UOP TIP process [3]. A similar catalyst Hysopar was introduced by Sud-Chemie [22] in the CKS Isom process (Cepsa-Kellogg-Sud Chemie). Recently there were reports of IMP-02 and CI-50 commercial catalysts from China [23] and Russia [24]. 

Membrane reactors [25] and catalytic distillation [26] are two options for even closer integration of isomerization and separation. The membrane concept is 

ADS = Adsorption, DES = Desorption, ISO = Isomerization Reactor. Reprinted from [103], with permission from Elsevier. 

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