CN112760118A - 一种混杂布碎热解制备富芳烃化合物的方法 - Google Patents
一种混杂布碎热解制备富芳烃化合物的方法 Download PDFInfo
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- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000010457 zeolite Substances 0.000 claims abstract description 7
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- C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
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Abstract
本发明公开了一种混杂布碎热解制备富芳烃化合物的方法，将混杂布碎和分子筛按质量比1:1～1:15混合，在惰性气氛环境、450～750℃下进行催化热解以制备芳烃化合物；所述的分子筛选自MCM‑41、ZSM‑5、ZSM‑35、SBA‑15、Hβ沸石中的一种以上，所述的芳烃化合物包括苯、甲苯、萘和2‑甲基萘，本发明利用分子筛催化混杂布碎选择性热转化，既有助于特定芳烃化合物的高效合成，又能够实现混杂布碎的资源化利用与减容减量化，芳烃总收率可达60％以上。此外，本发明简单、易行，可进一步推广应用于其它含纤维类有机固体废物的资源化利用。
Description
技术领域：
本发明属于固废物综合利用领域，具体涉及一种混杂布碎热解制备富芳烃化合物的方法。
背景技术：
我国每年产生的废旧纺织品可达2000万吨，而混杂布碎是废旧纺织品重要组成部分，其化学组成主要包括化纤类和天然纤维类。当前，针对这一类有机固体废物的高值资源化利用研究相对较少，主要侧重于作为固体燃料使用和化学法纤维再生。中国发明专利CN109251777A报道采用废布条与污泥共混造粒的方式制备燃料颗粒，CN 111270354A公开了一套无纺布或废布料中纤维分离的装置，而利用热解方式将混杂布碎转化为高值化学品的研究尚未见报道。相关专利CN 106431802A、CN 103484142B等均报道了生物质类有机废弃物热解制备芳烃化合物的研究，但是该转化过程均需要富含氢的化合物(聚乙烯、聚丙烯、废塑料等)参与，以促进芳烃类物质的产生。而且在CN 106431802A专利中发明人提出掺入具有芳香环结构的木质素、聚苯乙烯等作为原料，以进行热解聚获得芳烃化合物。
发明内容：
本发明的目的是提供一种混杂布碎热解制备富芳烃化合物的方法，利用混杂布碎选择性催化热解制备芳烃类物质，实现其高值资源化利用。
本发明是通过以下技术方案予以实现的：
一种混杂布碎热解制备富芳烃化合物的方法，包括以下步骤：将混杂布碎和分子筛按质量比1:1～1:15，优选为1:10～1:15，最优选为1:15混合，在惰性气氛环境、450～750℃，优选为550-750℃，最优选为750℃下进行催化热解以制备芳烃化合物；所述的分子筛选自MCM-41、Z SM-5、ZSM-35、SBA-15、Hβ沸石中的一种以上；升温至设定热解温度的升温速率为102～104℃/s，优选为102～103℃/s，最优选为102℃/s，所述的芳烃化合物包括苯、甲苯、萘和2-甲基萘。
本发明的有益效果为：本发明利用分子筛催化混杂布碎选择性热转化，既有助于特定芳烃化合物的高效合成，又能够实现混杂布碎的资源化利用与减容减量化。其中，混杂布碎催化热解产物以苯、甲苯、萘和2-甲基萘等芳烃为主，总收率可达60％以上。此外，本发明方法简单、易行，可进一步推广应用于其它含纤维类有机固体废物的资源化利用。
具体实施方式：
以下是对本发明的进一步说明，而不是对本发明的限制。
实施例1：
将混杂布碎与ZSM-5以质量比1:1进行均匀研磨混合，在热解温度450℃，升温速率104℃/s，热解气氛为氩气下进行热解，热解时间20s，通过气相色谱-质谱联用仪分析热解产物相对含量，其中苯7.5％、甲苯21.4％、萘4.5％和2-甲基萘9.8％。
实施例2：
将混杂布碎与ZSM-5以质量比1:5进行均匀研磨混合，在热解温度750℃，升温速率102℃/s，热解气氛为氩气下进行热解，热解时间20s，通过气相色谱-质谱联用仪分析热解产物相对含量，其中苯15.5％、甲苯26.2％、萘6.8％和2-甲基萘12.4％。
实施例3：
将混杂布碎与MCM-41以质量比1:12进行均匀研磨混合，在热解温度550℃，升温速率104℃/s，热解气氛为氩气下进行热解，热解时间20s，通过气相色谱-质谱联用仪分析热解产物相对含量，其中苯7.5％、甲苯20.2％、萘4.1％和2-甲基萘5.5％。
实施例4：
将混杂布碎与ZSM-35以质量比1:15进行均匀研磨混合，在热解温度750℃，升温速率103℃/s，热解气氛为氩气下进行热解，热解时间20s，通过气相色谱-质谱联用仪分析热解产物相对含量，其中苯11.7％、甲苯15.7％、萘7.0％和2-甲基萘8.1％。
实施例5：
将混杂布碎与ZSM-35沸石以质量比1:10进行均匀研磨混合，在热解温度650℃，升温速率104℃/s，热解气氛为氩气下进行热解，热解时间20s，通过气相色谱-质谱联用仪分析热解产物相对含量，其中苯9.3％、甲苯12.1％、萘6.0％和2-甲基萘7.0％。
实施例6：
将混杂布碎与Hβ沸石以质量比1:5进行均匀研磨混合，在热解温度650℃，升温速率104℃/s，热解气氛为氩气下进行热解，热解时间20s，通过气相色谱-质谱联用仪分析热解产物相对含量，其中苯15.1％、甲苯16.4％、萘4.9％和2-甲基萘7.5％。
实施例7：
将混杂布碎与SBA-15沸石以质量比1:10进行均匀研磨混合，在热解温度750℃，升温速率103℃/s，热解气氛为氩气下进行热解，热解时间20s，通过气相色谱-质谱联用仪分析热解产物相对含量，其中苯9.5％、甲苯10.1％、萘3.9％和2-甲基萘8.1％。
实施例8：
将混杂布碎与SBA-15沸石以质量比1:15进行均匀研磨混合，在热解温度650℃，升温速率104℃/s，热解气氛为氩气下进行热解，热解时间20s，通过气相色谱-质谱联用仪分析热解产物相对含量，其中苯13.3％、甲苯8.3％、萘4.4％和2-甲基萘7.4％。
Claims (3)
1.一种混杂布碎热解制备富芳烃化合物的方法，其特征在于，包括以下步骤：将混杂布碎和分子筛按质量比1:1～1:15混合，在惰性气氛环境、450～750℃下进行催化热解以制备芳烃化合物；所述的分子筛选自MCM-41、ZSM-5、ZSM-35、SBA-15、Hβ沸石中的一种以上；升温速率为102～104℃/s，所述的芳烃化合物包括苯、甲苯、萘和2-甲基萘。
2.根据权利要求1所述的混杂布碎热解制备富芳烃化合物的方法，其特征在于，混杂布碎和分子筛按质量比1:10～1:15；催化热解温度为550～750℃；升温速率为102～103℃/s。
3.根据权利要求1所述的混杂布碎热解制备富芳烃化合物的方法，其特征在于，混杂布碎和分子筛按质量比为1:15混合，催化热解温度为750℃，升温速率为102℃/s。
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101824330A (zh) * | 2010-04-30 | 2010-09-08 | 中国科学技术大学 | 木质素催化热裂解的方法 |
| CN102083943A (zh) * | 2008-04-23 | 2011-06-01 | Gpi专利控股有限责任公司 | 制备烃燃料的方法和设备 |
| CN103384713A (zh) * | 2011-01-05 | 2013-11-06 | 莱斯拉有限公司 | 有机质的加工 |
| CN102015969B (zh) * | 2008-03-04 | 2015-05-27 | 马萨诸塞大学 | 固体生物质的催化热解及相关的生物燃料、芳烃化合物和烯烃化合物 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102015969B (zh) * | 2008-03-04 | 2015-05-27 | 马萨诸塞大学 | 固体生物质的催化热解及相关的生物燃料、芳烃化合物和烯烃化合物 |
| CN102083943A (zh) * | 2008-04-23 | 2011-06-01 | Gpi专利控股有限责任公司 | 制备烃燃料的方法和设备 |
| CN101824330A (zh) * | 2010-04-30 | 2010-09-08 | 中国科学技术大学 | 木质素催化热裂解的方法 |
| CN103384713A (zh) * | 2011-01-05 | 2013-11-06 | 莱斯拉有限公司 | 有机质的加工 |
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