Process for Obtaining Catalyst Composites MeAPO and Their Use in Conversion of Organics to Olefins
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United States of America Patent
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app pub date -
Apr 22, 2013
filing date -
Jan 25, 2008
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Abstract
A mixture can include 0.01 to 30 weight % of a medium or large pore crystalline silicoaluminate, silicoaluminophosphate materials, or silicoaluminate mesoporous molecular sieves (A), and 99.99 to 70 weight % of a MeAPO molecular sieve. The mixture can be included in a catalyst. An XTO process can include contacting an oxygen-containing, halogenide-containing, or sulphur-containing organic feedstock with the catalyst under conditions effective to convert the organic feedstock to olefin products. A combined XTO and OCP process can include contacting the organic feedstock with the catalyst at conditions effective to convert at least a portion of the organic feedstock to form an XTO reactor effluent including light olefins and a heavy hydrocarbon fraction, separating the light olefins from the heavy hydrocarbon fraction, and contacting the heavy hydrocarbon fraction in an OCP reactor at conditions effective to convert at least a portion of the heavy hydrocarbon fraction to light olefins.
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