Title:
METHOD FOR MICROWAVE HEAT-ASSISTED CATALYTIC PYROLYSIS OF POLYMER MATERIALS
Document Type and Number:
WIPO Patent Application WO/2024/060702
Kind Code:
A1
Abstract:
The invention discloses a method for the microwave heat-assisted catalytic pyrolysis of polymer materials, the polymer materials comprising waste materials or fresh materials, and specifically, the polymer materials comprising one or a mixture of two or more of polyolefin materials, polyvinyl chloride materials, biomass materials and rubber materials. Under the conditions of normal pressure and anaerobic reaction, through the interaction of microwave heating and a catalyst, efficient catalytic pyrolysis of a polyolefin material is achieved, obtaining gas and solid residue; the gas contains components having different boiling points, and following condensation treatment, separation is performed to obtain a pyrolysis product having wax as a main component, and a gas product mainly comprising ethylene, propylene and butylene; the gas product and the pyrolysis product primarily comprising wax have relatively high added value and can be prepared into chemicals. The pyrolysis treatment process of the present invention is green, environmentally friendly, safe, and reliable, and can satisfy actual requirements. The catalyst is zinc oxide or zinc oxide/compound components; the compound components comprise one or more of activated carbon, graphite, carbon nanotubes, sodium chloride, sodium nitrate, potassium chloride and potassium nitrate.
Inventors:
XIAO TIANCUN (CN)
MA WANGJING (CN)
ZHAO JUN (CN)
MA WANGJING (CN)
ZHAO JUN (CN)
Application Number:
PCT/CN2023/099831
Publication Date:
March 28, 2024
Filing Date:
June 13, 2023
Export Citation:
Assignee:
GUANGZHOU BOXENERGY TECH CO LTD (CN)
International Classes:
C10B53/07; B01J23/06; B01J37/02; B01J37/03; B01J37/10; B09B3/50
Foreign References:
| CN115537220A | 2022-12-30 | |||
| CN115353141A | 2022-11-18 | |||
| CN114309023A | 2022-04-12 | |||
| CN101182028A | 2008-05-21 | |||
| CN105460970A | 2016-04-06 |
Other References:
NAN LIU, HU YIMING; YANG YING; LI HONGJIN; GAO ZHUQING : "Microwave assisted co-pyrolysis of waste polypropylene/activated carbon to produce combustible pyrolysis gas and light pyrolysis oil", CHEMICAL INDUSTRY AND ENGINEERING PROGRESS, BEIJING UNIVERSITY OF CHEMICAL TECHNOLOGY, MEMBER OF CHINESE ACADEMY OF ENGINEERING, PROFESSOR, CHINA, vol. 41, no. z1, 15 October 2022 (2022-10-15), pages 150 - 159, XP093150636, ISSN: 1000-6613, DOI: 10.16085/j.issn.1000-6613.2021-2660
G. KABIR ET AL.: "Recent progress on catalytic pyrolysis of lignocellulosic biomass to highgrade bio-oil and bio-chemicals", RENEWABLE AND SUSTAINABLE ENERGY REVIEWS, vol. 70, 5 January 2017 (2017-01-05), XP029913750, ISSN: 1364-0321, DOI: 10.1016/j.rser.2016.12.001
YUE WANG, WU XIN-MIN, CHEN XIAO-LI: "Preparation and application of nanometer ZnO", JOURNAL OF XINYANG TEACHERS COLLEGE(NATURAL SCIENCE EDITION), vol. 18, no. 3, 10 July 2005 (2005-07-10), pages 346 - 349, XP093150640
G. KABIR ET AL.: "Recent progress on catalytic pyrolysis of lignocellulosic biomass to highgrade bio-oil and bio-chemicals", RENEWABLE AND SUSTAINABLE ENERGY REVIEWS, vol. 70, 5 January 2017 (2017-01-05), XP029913750, ISSN: 1364-0321, DOI: 10.1016/j.rser.2016.12.001
YUE WANG, WU XIN-MIN, CHEN XIAO-LI: "Preparation and application of nanometer ZnO", JOURNAL OF XINYANG TEACHERS COLLEGE(NATURAL SCIENCE EDITION), vol. 18, no. 3, 10 July 2005 (2005-07-10), pages 346 - 349, XP093150640
Attorney, Agent or Firm:
GUANGZHOU YUEXIU JILY PATENT & TRADEMARK LAW OFFICE (CN)
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