焙烧温度对球状Ni-Al纳米催化剂结构及生物质催化热解的影响研究

doi:10.19912/j.0254-0096.tynxb.2020-1365

太阳能学报 ›› 2022, Vol. 43 ›› Issue (9): 376-381.DOI: 10.19912/j.0254-0096.tynxb.2020-1365

焙烧温度对球状Ni-Al纳米催化剂结构及生物质催化热解的影响研究

王士铎^1,2, 张晓东², 杨双霞³, 冯洪庆¹, 周于翔³, 王迪²

1.中国石油大学（华东）新能源学院,青岛 266580;
2.集美大学机械与能源工程学院,厦门 361021;
3.齐鲁工业大学（山东省科学院）能源研究所山东省生物质气化技术重点实验室,济南 250014

收稿日期:2020-12-21 出版日期:2022-09-28 发布日期:2023-03-28
通讯作者: 张晓东（1977—）,男,博士、教授,主要从事生物质热转化方面的研究。xd_zhang77@aliyun.com
基金资助:
国家自然科学基金（51876108）

EFFECT OF CALCINATION TEMPERATURES ON STRUCTURE AND BIOMASS CATALYTIC PYROLYSIS OF SPHERE-LIKE Ni-Al NANOCATALYSTS

Wang Shiduo^1,2, Zhang Xiaodong², Yang Shuangxia³, Feng Hongqing¹, Zhou Yuxiang³, Wang Di²

1. College of New Energy, China University of Petroleum （East China）, Qingdao 266580, China;
2. College of Mechanical and Energy Engineering, Jimei University, Xiamen 361021, China;
3. Shandong Provincial Key Laboratory of Biomass Gasification Technology, Energy Research Institute, Qilu University of Technology （Shandong Academy of Sciences）, Ji'nan 250014, China

Received:2020-12-21 Online:2022-09-28 Published:2023-03-28

摘要/Abstract

摘要： 采用水热法制备三维Ni-Al纳米结构催化剂,并利用多种表征手段和稻壳催化热解实验研究焙烧温度（500~800 ℃）对催化剂的整体结构及催化性能的影响。结果表明：催化剂为球状结构,活性位点分布均匀,焙烧温度对材料结构有显著影响,800 ℃焙烧条件下球状结构有向内塌陷的趋势。相较于无催化条件下的稻壳热解产物,催化热解后焦油产率明显减小,产气量大幅提高。500 ℃焙烧制备的Ni-Al催化剂作用条件下,稻壳热解气体产物中H₂/CO最大可达2.66,600 ℃焙烧条件下可获得最大合成气产量737 mL/g,而700 ℃焙烧条件下可获得最低的焦油产率（13.5%）。材料表征发现,反应后的催化剂仍具有稳定的球状结构与活化性能。

关键词: 焙烧, Ni-Al催化剂, 生物质, 热解

Abstract: Four three-dimensional Ni-Al catalysts with different calcination temperatures （500-800 ℃） were prepared by a hydrothermal method, and the structure and catalytic performance of synthesized catalysts were studied by various characterizations and rice husk catalytic pyrolysis experiments. The results show that the catalyst has a sphere-like structure with uniform distribution of Ni-based active sites, but the spherical structure tends to collapse inward when the calcination temperature was 800 ℃. Compared with non-catalytic pyrolysis, the tar yield decreased and the syngas increased significantly after catalytic pyrolysis. The maximum H₂/CO ratio of 2.66 could be obtained when the Ni-Al catalysts was calcined at 500 ℃ and the maximum syngas yield of 737 mL/g could be obtained at 600 ℃, and the minimum liquid yield percentage of 13.5% could obtained at 700 ℃. The used Ni-Al catalyst exhibited a stable spherical structure and active performance after reaction based on the structure characterization.

Key words: calcination, Ni-Al catalyst, biomass, pyrolysis

中图分类号:

王士铎, 张晓东, 杨双霞, 冯洪庆, 周于翔, 王迪. 焙烧温度对球状Ni-Al纳米催化剂结构及生物质催化热解的影响研究[J]. 太阳能学报, 2022, 43(9): 376-381.

Wang Shiduo, Zhang Xiaodong, Yang Shuangxia, Feng Hongqing, Zhou Yuxiang, Wang Di. EFFECT OF CALCINATION TEMPERATURES ON STRUCTURE AND BIOMASS CATALYTIC PYROLYSIS OF SPHERE-LIKE Ni-Al NANOCATALYSTS[J]. Acta Energiae Solaris Sinica, 2022, 43(9): 376-381.

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焙烧温度对球状Ni-Al纳米催化剂结构及生物质催化热解的影响研究

EFFECT OF CALCINATION TEMPERATURES ON STRUCTURE AND BIOMASS CATALYTIC PYROLYSIS OF SPHERE-LIKE Ni-Al NANOCATALYSTS

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