Knowledge Management System Of Institute of process engineering,CAS
| Laboratory Research on Design of Three-Phase AC Arc Plasma Pyrolysis Device for Recycling of Waste Printed Circuit Boards | |
| Bai, Liuyang1; Sun, Wenbin2; Yang, Zhao3; Ouyang, Yuge4; Wang, Min3; Yuan, Fangli4 | |
| 2022-05-01 | |
| Source Publication | PROCESSES
 |
| Volume | 10Issue:5Pages:12 |
| Abstract | Accumulation of electronic waste (e-waste) will place a heavy burden on the environment without proper treatment; however, most ingredients contained in it are useful, and it could bring great economic benefits when recycled. A three-phase alternating current (AC) arc plasma pyrolysis device was designed for resourcing treatment of waste printed circuit boards (WPCBs). This paper focuses on the analysis of plasma pyrolysis gas products, and the results showed that the plasma could operate stably, and overcame the problems of the poor continuity and low energy of single-arc discharge. Air-plasma would generate NOx contaminants, burn the organics, and oxidize the metals; therefore, air had not been selected as a working gas. Ar-plasma can break the long chains of organic macromolecules to make a combustible gas. Moreover, the strong adhesion between the metals and fiberglass boards would be destroyed, which facilitates subsequent separation. Ar/H-2-plasma promoted the decrease of carbon dioxide and the increase of combustible small molecular hydrocarbons in the pyrolysis product compared with Ar-plasma, and the increase of the H-2 flow rate or plasma power intensified that promotion effect. The percentage of other components, except the hydrogen of CO2, CO, CH4, C2H4, and C3H6, accounted for 55.7%, 34.2%, 5.6%, 4.5%, and 0% in Ar-plasma, and changed to 35.0%, 29.0%, 11.2%, 24.3%, and 0.5% in Ar/H-2-plasma. Ar/H-2-plasma could provide a highly chemically active species and break chemical bonds in organic macromolecules to produce small molecules of combustible gas. This laboratory work presents a novel three-phase AC arc plasma device and a new way for recycling WPCBs with high value. |
| Keyword | three-phase AC arc plasma waste printed circuit boards resourcing treatment |
| DOI | 10.3390/pr10051031 |
| Language | 英语 |
| WOS Keyword | ELECTROSTATIC SEPARATION ; THERMAL PLASMA ; EPOXY-RESIN ; RECOVERY ; SIMULATION ; METALS ; SYSTEM ; COPPER |
| Funding Project | National Natural Science Foundation of China[11875284] ; Program for Science & Technology Innovation Talents in Universities of Henan Province[21HASTIT020] ; Henan Science and Technology Development Program[212102311155] |
| WOS Research Area | Engineering |
| WOS Subject | Engineering, Chemical |
| Funding Organization | National Natural Science Foundation of China ; Program for Science & Technology Innovation Talents in Universities of Henan Province ; Henan Science and Technology Development Program |
| WOS ID | WOS:000802370900001 |
| Publisher | MDPI |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/53587 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Bai, Liuyang; Yuan, Fangli |
| Affiliation | 1.Huanghuai Univ, Coll Energy Engn, Zhumadian 463800, Peoples R China 2.Henan Great Power Energy Co Ltd, Zhumadian 463800, Peoples R China 3.Henan Huiqiang New Energy Mat Technol Co Ltd, Zhumadian 463800, Peoples R China 4.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China |
| Recommended Citation GB/T 7714 | Bai, Liuyang,Sun, Wenbin,Yang, Zhao,et al. Laboratory Research on Design of Three-Phase AC Arc Plasma Pyrolysis Device for Recycling of Waste Printed Circuit Boards[J]. PROCESSES,2022,10(5):12. |
| APA | Bai, Liuyang,Sun, Wenbin,Yang, Zhao,Ouyang, Yuge,Wang, Min,&Yuan, Fangli.(2022).Laboratory Research on Design of Three-Phase AC Arc Plasma Pyrolysis Device for Recycling of Waste Printed Circuit Boards.PROCESSES,10(5),12. |
| MLA | Bai, Liuyang,et al."Laboratory Research on Design of Three-Phase AC Arc Plasma Pyrolysis Device for Recycling of Waste Printed Circuit Boards".PROCESSES 10.5(2022):12. |
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