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AssigneesMitsubishi Chemical Corporation, Japan Technological Research Association of Artificial Photosynthetic Chemical Process
InventorsHiroaki Onozuka, Masahiro Hara, Masato Yoshioka, Toshiyuki Yokoi
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A zeolite catalyst capable of maintaining a high conversion of raw materials over a long period of time, and a method of producing a lower olefin stably over a long period of time using the zeolite catalyst is to be provided. A CON zeolite catalyst containing aluminum (Al) as a constituent element, wherein the CON zeolite catalyst has a ratio ((A2/A1)×100 (%)) of an integrated intensity area (A2) of signal intensity in a range from 57.5 ppm to 70 ppm to an integrated intensity area (A1) of signal intensity in a range from 45 ppm to 70 ppm is not less than 49.0% when analyzed by 27Al-MAS-NMR is prepared, and a lower olefin is produced by a MTO process using the zeolite catalyst.
A CON zeolite catalyst comprising aluminum (Al) as a constituent element, wherein the CON zeolite catalyst has an integrated intensity area (A2) of signal intensity in a range from 57.5 ppm to 70 ppm to an integrated intensity area (A1) of signal intensity in a range from 45 ppm to 70 ppm such that (A2/A1)×100(%) is not less than 49.0% when analyzed by 27Al-MAS-NMR.
Dependencies are inferred from the claim text.