多级孔HZSM-5分子筛催化快速热解生物质制芳烃

马会霞; 周峰; 武光; 傅杰; 乔凯

doi:10.11949/0438-1157.20200091

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多级孔HZSM-5分子筛催化快速热解生物质制芳烃

催化、动力学与反应器 | 更新时间：2026-07-24

- 多级孔HZSM-5分子筛催化快速热解生物质制芳烃
- Catalytic fast pyrolysis of biomass to aromatics over hierarchical HZSM-5
- 化工学报 2020年71卷第11期页码：5200-5207
- 作者机构：
  
  1.中国石油化工股份有限公司大连石油化工研究院，辽宁大连 116043
  2.黑龙江大学化学化工与材料学院，黑龙江哈尔滨 150080
  3.浙江大学化学工程与生物工程学院生物质化工教育部重点实验室，浙江杭州 310027
- 作者简介：
  
  马会霞（1987—），女，硕士，助理研究员，mahuixia.fshy@sinopec.com
  周峰（1982—），男，博士，高级工程师，zhoufeng.fshy@sinopec.com
- 基金信息：
  
  国家自然科学基金项目(U1663227;51876200)
- DOI：10.11949/0438-1157.20200091
  中图分类号： TQ 032.4
- 收稿：2020-01-21，
  
  修回：2020-05-28，
  
  网络首发：2020-11-03，
  
  纸质出版：2020-11-05
- 稿件说明：
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马会霞, 周峰, 武光, 傅杰, 乔凯. 多级孔HZSM-5分子筛催化快速热解生物质制芳烃[J]. 化工学报, 2020, 71(11): 5200-5207

MA Huixia, ZHOU Feng, WU Guang, FU Jie, QIAO Kai. Catalytic fast pyrolysis of biomass to aromatics over hierarchical HZSM-5[J]. CIESC Journal, 2020, 71(11): 5200-5207
马会霞, 周峰, 武光, 傅杰, 乔凯. 多级孔HZSM-5分子筛催化快速热解生物质制芳烃[J]. 化工学报, 2020, 71(11): 5200-5207 DOI： 10.11949/0438-1157.20200091.

MA Huixia, ZHOU Feng, WU Guang, FU Jie, QIAO Kai. Catalytic fast pyrolysis of biomass to aromatics over hierarchical HZSM-5[J]. CIESC Journal, 2020, 71(11): 5200-5207 DOI： 10.11949/0438-1157.20200091.

摘要

采用酸和/或碱处理法制备了一系列多级孔HZSM-5分子筛，采用XRD、N

吸附、XRF、TEM、

Al MAS NMR和NH

-TPD等表征手段对其孔道结构和酸性进行表征。表征结果表明，采用碱处理方法，可获得孔径集中于3~6 nm的介孔结构，通过改变酸、碱处理次序，可调变酸中心数量和强酸/总酸中心比例。在Py-GC/MS装置上，以纤维素和水稻秸秆为原料，研究多级孔分子筛结构对催化快速热解（CFP）制芳烃反应的影响。反应评价结果表明，同商品级HZSM-5相比，采用先碱后酸处理获得的多级孔HZSM-5分子筛（HZ-OH/H），可将纤维素CFP芳烃碳产率由32.3%提高至43.6%，可将水稻秸秆CFP芳烃碳产率由23.0%提高至30.8%。多级孔HZ-OH/H分子筛的孔道结构和酸中心分布特征，对开发应用于生物质制芳烃的高效工业催化剂具有借鉴意义。

Abstract

A series of HZSM-5 molecular sieves with hierarchical porosity were prepared by acid and/or alkali treatments

and their pore structure and acidity were characterized by XRD

adsorption

XRF

TEM

Al MAS NMR and NH

-TPD. The characterization results show that the alkali treatment method used in this paper can generate the mesoporous structure with a pore size concentrated at 3—6 nm. By changing the order of acid and alkali treatment

the number of acid centers and the ratio of strong acid to total acid center can be adjusted. In addition

the catalytic performance of the hierarchical porosity catalysts were studied for the catalytic fast pyrolysis (CFP) of cellulose and rice straw to aromatics on the Py-GC/MS. Compared with the commercial HZSM-5

the catalysts (HZ-OH/H) obtained by alkali first and then acid treatment can increase the aromatics carbon yield of cellulose CFP from 32.3 % to 43.6%

and same for rice straw from 23.0% to 30.8%. The pore structure and acid center distribution characteristics of the multi-stage HZ-OH/H molecular sieve have reference significance for the development of high-efficiency industrial catalysts applied to biomass to produce aromatics.

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references

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