Casale Sa

Casale Chemicals Sa

Cristina Ferrini

David Linke

Luca Zanichelli

Evgeny Kondratenko

Daniel Herein

Uwe Rodemerck

A new process for light-olefins production is disclosed. The process comprises the step of contacting syngas with a iron-based catalyst at a temperature in the range from 250&#xb0; C. to 350&#xb0; C. and at a pressure in the range from 10 bar to 40 bar. By so doing a production of light olefins with a selectivity of at least 80% is obtained.

Process for the production of light olefins from synthesis gas

A new process for producing a SAPO molecular sieve is disclosed wherein a mixture of a P source with an Al source is subjected to a digestion step under stirring before adding a Si source and a template. The slurry resulting after addition of all chemicals is subjected to a pH adjustment followed by the usual hydrothermal treatment at higher temperature in an autoclave. In this way, very pure highly crystalline SAPO molecular sieves such as SAPO-34 are obtained with a very high yield. In addition, the SAPOs produced this way have an exceptional activity in the dehydration reactions and can be employed as a active component of catalysts for the production of valuable dehydration products from methanol such as, but not limited to, olefins and dimethylether (DME).

Process for preparing silicoaluminophosphate (SAPO) molecular sieves, catalysts containing said sieves and catalytic dehydration processes using said catalysts

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Breganzona, Switzerland

Cristina Ferrini