Method and Device for Converting Waste Plastic Pyrolysis Oil into Light Olefins with High Yield
AssigneesSK Innovation Co., Ltd., SK Geo Centric Co., Ltd.
InventorsHee Jung Jeon, Ok Youn Kim, Ho Won Lee
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Abstract
Provided is a method for converting waste plastic pyrolysis oil into light olefins with a high yield. The method includes (1) putting waste plastic pyrolysis oil into a reactor; (2) allowing the waste plastic pyrolysis oil to react in the reactor in the presence of a catalytic cracking catalyst containing (a) a compound of an alkali metal or a compound of an alkaline earth metal and (b) a zeolite to form a product; and (3) recovering light olefins by separating the catalytic cracking catalyst and oil from the product obtained in step (2).
Claims20
A method for converting waste plastic pyrolysis oil into light olefins with a high yield, the method comprising:
- (1) putting waste plastic pyrolysis oil into a reactor;
- (2) allowing the waste plastic pyrolysis oil to react in the reactor in the presence of a catalytic cracking catalyst comprising:
- (a) a compound of an alkali metal or a compound of an alkaline earth metal;
- and (b) zeolite to form a product;
- and
- (3) recovering light olefins by separating the catalytic cracking catalyst and oil from the product obtained in step (2).
A device for converting waste plastic pyrolysis oil into light olefins with a high yield, the device comprising:
- a fluidized bed reactor into which waste plastic pyrolysis oil is introduced and in which a catalytic cracking reaction is performed in the presence of a catalytic cracking catalyst comprising (a) a compound of an alkali metal or a compound of an alkaline earth metal and (b) a zeolite to form a product;
- a cyclone into which the product is introduced from the fluidized bed reactor and in which the product is separated into the catalytic cracking catalyst and oil;
- and
- a stabilizer into which the oil is introduced from the cyclone and in which the oil is separated into a gas component and a liquid component.
A method for reducing greenhouse gas emissions by converting waste plastic pyrolysis oil into light olefins, comprising:
- (1) putting waste plastic pyrolysis oil into a reactor;
- (2) allowing the waste plastic pyrolysis oil to react in the reactor in the presence of a catalytic cracking catalyst comprising:
- (a) a compound of an alkali metal or a compound of an alkaline earth metal;
- and (b) zeolite to form a product;
- and
- (3) recovering light olefins by separating the catalytic cracking catalyst and oil from the product obtained in step (2).
Dependencies are inferred from the claim text.