MSW pyro-gasification using high-temperature CO2 as gasifying agent: Influence of contact mode between CO2, char and volatiles on final products
文献类型：期刊论文
| 作者 | Ge, Shaoheng1,2; Tahir, Mudassir Hussain1,2; Chen, Dezhen1,2,4; Hong, Liu1,2; Feng, Yuheng1,2; Huang, Zhen3 |
| 刊名 | WASTE MANAGEMENT
 |
| 出版日期 | 2023-10-01 |
| 卷号 | 170页码:112-121 |
| 关键词 | MSW pyrolysis Pyro-gasification High-temperature CO 2 Char Volatiles Contact modes |
| ISSN号 | 0956-053X |
| DOI | 10.1016/j.wasman.2023.07.033 |
| 通讯作者 | Chen, Dezhen(chendezhen@tongji.edu.cn) |
| 英文摘要 | The volatiles and char derived from municipal solid waste (MSW) pyrolysis can be catalytically reformed and gasified using high-temperature CO2 (HT-CO2) as gasifying agent and char as a catalyst simultaneously to obtain high quality synthesis gas, but the reactor's design for this purpose is still a question. In this research, the contact configuration between the HT-CO2, the volatile compounds, and the char from MSW pyrolysis were studied to understand the relevant reaction behaviors and to establish guidelines for the reactor's design. Three contact modes were designed, including: M1, where volatiles and HT-CO2 contact first, then contact the char; M2, where volatiles, CO2, and char contact simultaneously at the bottom of the char layer; and M3, where CO2 contacts with the char first, then the volatiles contact in the middle of the char layer. The temperature evolution in the char layer, the yields and properties of the resultant combustible gases, used char, and tar were investigated. Experimental results revealed that the contact mode significantly affected the levels of char gasification and volatiles' reforming. For M1, intense thermal cracking of volatiles occurred and 65.41% of the input heat of HT-CO2 was consumed for thermal cracking, resulting in substantial carbon deposition and limited energy transfer from char to the synthesis gas. While, the char contacting HT-CO2 firstly in M3 improved its catalytic activity, causing 73.33 % of the input heat utilized for gasification and reforming; as a result, the maximum synthesis gas yield of 0.71 Nm3/kgMSW and gas energy ratio of 76.3 % were obtained respectively in M3 with the lowest tar yield of 5.45 %; additionally, the used char corresponded to the highest specific surface area of 10.12 m2/g. Ultimately, M3 is constructive and recommended, and the findings of this study offer helpful guidance for the design of pyro-gasification reactors. |
| WOS关键词 | MUNICIPAL SOLID-WASTE ; DOWNDRAFT GASIFICATION ; STEAM GASIFICATION ; SYNGAS PRODUCTION ; FLUIDIZED-BED ; SEWAGE-SLUDGE ; PYROLYSIS ; TAR ; TECHNOLOGIES ; MECHANISM |
| 资助项目 | Shanghai Municipal Science and Technology Commission[20230712900] ; Heilongjiang Announcing and Commanding Key Scientific and Technological project[2022ZXJ05C02] |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001063084000001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | Shanghai Municipal Science and Technology Commission ; Heilongjiang Announcing and Commanding Key Scientific and Technological project |
| 源URL | [http://ir.giec.ac.cn/handle/344007/39717]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Chen, Dezhen |
| 作者单位 | 1.Tongji Univ, Thermal & Environm Engn Inst, Sch Mech Engn, 1239 Siping Rd, Shanghai 200092, Peoples R China 2.Shanghai Engn Res Ctr Multisource Solid Wastes Cop, 1239 Siping Rd, Shanghai 200092, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, CAS, Guangzhou, Peoples R China 4.Tongji Univ, Thermal & Environm Engn Inst, Shanghai 200092, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ge, Shaoheng,Tahir, Mudassir Hussain,Chen, Dezhen,et al. MSW pyro-gasification using high-temperature CO2 as gasifying agent: Influence of contact mode between CO2, char and volatiles on final products[J]. WASTE MANAGEMENT,2023,170:112-121. |
| APA | Ge, Shaoheng,Tahir, Mudassir Hussain,Chen, Dezhen,Hong, Liu,Feng, Yuheng,&Huang, Zhen.(2023).MSW pyro-gasification using high-temperature CO2 as gasifying agent: Influence of contact mode between CO2, char and volatiles on final products.WASTE MANAGEMENT,170,112-121. |
| MLA | Ge, Shaoheng,et al."MSW pyro-gasification using high-temperature CO2 as gasifying agent: Influence of contact mode between CO2, char and volatiles on final products".WASTE MANAGEMENT 170(2023):112-121. |
入库方式： OAI收割
来源：广州能源研究所
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