Title:
廃プラスチックのケミカルリサイクル方法及び装置
Document Type and Number:
Japanese Patent JP4465851
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To effectively recover an olefin gas, hydrogen, and BTX from a waste plastic. SOLUTION: This method comprises a pretreatment step (I) for separating a waste plastic into a polyolefin plastic and other plastics; a thermal decomposition step (II) for thermally decomposing the polyolefin plastic; a catalytic decomposition step (III) wherein 2-4C olefins are formed from a thermal decomposition gas 5 (generated at step II) by the action of a boron-containing silicate catalyst 7 of a first catalytic decomposition section 8 and BTX and hydrogen are formed by the action of a gallium-containing silicate catalyst 9 of a second catalytic decomposition section 10; a high-boiling-point component separation step (IV) for separating a high-boiling-point component from a gas 13 coming out of step III; and a gas-liquid separation step (V) wherein the gas 13 freed of the high-boiling-point component is cooled to be separated into a gas phase 16 mainly comprising a 2-4C olefin gas and hydrogen and a liquid phase 17 mainly comprising BTX.
Inventors:
Kamimichi Yoshio
Akemi Iris
Masatoshi Sugioka
Masato Ito
Junya Nishino
Akemi Iris
Masatoshi Sugioka
Masato Ito
Junya Nishino
Application Number:
JP2000316923A
Publication Date:
May 26, 2010
Filing Date:
October 17, 2000
Export Citation:
Assignee:
Ihi Co., Ltd.
International Classes:
C08J11/12; F25J3/02; B01D3/14; B01D5/00; B29B17/00; B29B17/04; C07B61/00; C07C2/42; C07C4/22; C07C11/02; C07C15/02; C08J11/16; B29K23/00; C08L23/00
Domestic Patent References:
| JP9227877A | ||||
| JP3086790A | ||||
| JP11217572A | ||||
| JP8041465A | ||||
| JP9313944A | ||||
| JP10168462A | ||||
| JP5287281A | ||||
| JP10005725A | ||||
| JP8508520A |
Attorney, Agent or Firm:
Tsunemitsu Yamada
Seiichi Otsuka
Seiichi Otsuka