Catalytic conversion of palm oil to aromatics on Zn/HZSM-5 zeolites

Zhiyuan AN; Chao ZHU; Yibin LIU; Xiang FENG; Xin JIN; Xiaobo CHEN; Chaohe YANG

doi:10.11949/0438-1157.20190424

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Catalytic conversion of palm oil to aromatics on Zn/HZSM-5 zeolites

Catalysis, kinetics and reactors | 更新时间：2020-06-24

- Catalytic conversion of palm oil to aromatics on Zn/HZSM-5 zeolites
- CIESC Journal Vol. 70, Issue 11, Pages: 4289-4297(2019)
- 作者机构：
  
  State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao 266580, Shandong, China
- 作者简介：
- 基金信息：
- DOI：10.11949/0438-1157.20190424
  CLC： TE 624
- Received：24 April 2019，
  
  Revised：2019-08-12，
  
  Published：05 November 2019
- 稿件说明：
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安志远, 朱超, 刘熠斌, 冯翔, 金鑫, 陈小博, 杨朝合. Zn/HZSM-5分子筛催化棕榈油多产芳烃的研究[J]. 化工学报, 2019, 70(11): 4289-4297

AN Zhiyuan, ZHU Chao, LIU Yibin, FENG Xiang, JIN Xin, CHEN Xiaobo, YANG Chaohe. Catalytic conversion of palm oil to aromatics on Zn/HZSM-5 zeolites[J]. CIESC Journal, 2019, 70(11): 4289-4297
安志远, 朱超, 刘熠斌, 冯翔, 金鑫, 陈小博, 杨朝合. Zn/HZSM-5分子筛催化棕榈油多产芳烃的研究[J]. 化工学报, 2019, 70(11): 4289-4297 DOI： 10.11949/0438-1157.20190424.

AN Zhiyuan, ZHU Chao, LIU Yibin, FENG Xiang, JIN Xin, CHEN Xiaobo, YANG Chaohe. Catalytic conversion of palm oil to aromatics on Zn/HZSM-5 zeolites[J]. CIESC Journal, 2019, 70(11): 4289-4297 DOI： 10.11949/0438-1157.20190424.

摘要

HZSM-5分子筛可用于脂肪酸酯催化转化生产芳烃、低碳烯烃等过程。未经过处理的HZSM-5分子筛芳烃产率较低，使用过渡金属改性后的HZSM-5分子筛酸性质发生了改变，能够提高芳烃的收率。以等体积浸渍法对HZSM-5分子筛进行改性，制备了不同锌含量的 Zn/HZSM-5分子筛，并进行了 XRD、XRF、XPS、NH

-TPD、SEM、TEM、Py-IR、N

物理吸附-脱附等多种表征，结果表明锌的引入没有改变 HZSM-5的晶体结构，锌物种能均匀分布在 HZSM-5分子筛表面及孔道。棕榈油催化转化实验结果显示Zn含量（质量分数）为3% 的 Zn/HZSM-5有最好的催化效果，芳烃在液相烃类所占比例（质量分数）为87.92%，芳烃收率（质量分数）为59.44%。

Abstract

HZSM-5 zeolite can be used in the process of catalytic conversion of fatty acid esters to produce aromatic hydrocarbons and low-carbon olefins. However

the yield of aromatics over untreated HZSM-5 zeolite is low. Modification of HZSM-5 zeolite with transition metal can optimize the acidity and greatly increase the yield of aromatics. A series of Zn/HZSM-5 zeolites with different zinc content were prepared by equal volume impregnation

and the modified zeolites were characterized by XRD

XRF

XPS

-TPD

SEM

TEM

Py-IR

and N

physical adsorption-desorption. The results showed that the crystal structure of Zn/HZSM-5 was not changed

and the zinc was uniformly distributed on the surface and pores of HZSM-5 zeolites. Catalytic conversion of palm oil on Zn/HZSM-5 zeolite with Zn content of 3% (mass) showed the best catalytic performance. The content of aromatics in the obtained liquid hydrocarbons was as high as 87.92% (mass)

and the yield of aromatics reached 59.44% (mass).

关键词

Keywords

references

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