Sud-Chemie Inc.

United Catalyst, LLC

Jeffrey L Braden

Wayne Turbeville

Ling Xu

Gregory A Korynta

Dinah C Huang

The present invention relates to a solid phosphoric acid catalyst and a process for conversion of hydrocarbons using a solid phosphoric acid catalyst. The solid phosphoric acid catalyst comprises silicon orthophosphate, and has a silicon orthophosphate to silicon pyrophosphate ratio of at least about 5:1. The total pore volume of the solid phosphoric acid catalyst is at least about 0.17 cmper gram of catalyst, of which at least about 0.15 cmper gram is contributed by pores with diameter of at least about 10,000 &#x212b;.

Solid phosphoric acid with controlled porosity

An improved catalyst for the high temperature shift reaction especially suited for low steam to gas ratio applications is made by dipping an iron oxide-chromium oxide catalyst in an aqueous copper salt solution, drying the catalyst and calcining it.

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New Albany, IN, United States of America

Jeffrey L Braden