METHOD FOR PRODUCING OLEFINS

WIPO Patent Application WO/2021/166854

A1

Provided is a method for producing olefins, in which the yield of olefins having 2-3 carbon atoms is excellent. This method for producing olefins includes a step (1) and a step (2).　Step (1): a step for heating a polyolefin-based plastic so as to obtain a decomposition product (a thermal decomposition step). Step (2): a step for bringing the decomposition product obtained in step (1) into contact with an MFI type zeolite containing 0.10-0.30 mass% of sodium atoms so as to obtain an olefin-containing catalytically cracked product (a catalytic cracking step).

JPH06256774	HYDROCARBON PROCESSING USING FULLERENE CATALYST
WO/1993/014049	HIGH VI LUBRICANT BLENDS FROM SLACK WAX
WO/2011/118750	METHOD FOR PRODUCING AROMATIC HYDROCARBONS, AND AROMATIC HYDROCARBON PRODUCTION PLANT

UEMICHI YOSHIO (JP)
KANDA YASUHARU (JP)
OKAMOTO YUKI (JP)

PCT/JP2021/005557

August 26, 2021

February 15, 2021

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SUMITOMO CHEMICAL CO (JP)
MURORAN INSTITUTE OF TECH (JP)

C07C4/00; B01J29/40; C01B39/38; C07B61/00; C07C11/04; C07C11/06

WO2007080957A1

2007-07-19

KAGA SHINNOSUKE, ET AL.: "Catalytic degradation of polyethylene into lower olefins", PROCEEDING OF ANNUAL/FALL MEETINGS OF THE JAPAN PETROLEUM INSTITUTE 2017, 1 January 2017 (2017-01-01), pages 190 - 190, XP055849751
KAMIMICHI, YOSHIO ET AL.: "Catalytic Degradation of Polyolefins into Lower Olefins", FAIN KEMIKARU - FINE CHEMICALS, vol. 46, no. 12, 30 November 2016 (2016-11-30), Japan, pages 44 - 51, XP009530678, ISSN: 0913-6150
See also references of EP 4108649A4

SAKAI INTERNATIONAL PATENT OFFICE (JP)

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