|本期目录/Table of Contents|

[1]王静,丁云,许春才,等.丙烯腈催化氧化催化剂性能及其中试评价[J].石化技术与应用,2024,4:292-297.
 WANG Jing,DING Yun,XU Chun-cai,et al.Performance and pilot test of catalytic oxidation catalysts for acrylonitrile[J].Petrochemical technology & application,2024,4:292-297.
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丙烯腈催化氧化催化剂性能及其中试评价(PDF)

《石化技术与应用》[ISSN:1009-0046/CN:62-1138/TQ]

期数:
2024年4期
页码:
292-297
栏目:
出版日期:
2024-07-10

文章信息/Info

Title:
Performance and pilot test of catalytic oxidation catalysts for acrylonitrile
文章编号:
1009-0045(2024)04-0292-06
作者:
王静1丁云2许春才2陈春雨2秦亚南1李永姗1
1.江苏洋井环保服务有限公司,江苏 连云港 222000;2.清华大学 盐城环境工程技术研发中心,江苏 盐城 224000
Author(s):
WANG Jing1 DING Yun2 XU Chun-cai2 CHEN Chun-yu2 QIN Ya-nan1 LI Yong-shan1
1.Jiangsu Yangjing Environmental Protection Service Co Ltd,Lianyungang 222000, China;2. Yancheng Environmental Engineering Technology Research and Development Center,Tsinghua University,Yancheng 224000,China
关键词:
丙烯腈催化氧化催化剂挥发性有机物体积空速
Keywords:
acrylonitrilecatalytic oxidationcatalystvolatile organic compoundvolume space velocity
分类号:
X 701.7
DOI:
DOI:10.19909/j.cnki.ISSN1009-0045.2024.04.0292
文献标识码:
B
摘要:
采用涂覆法制备了丙烯腈催化氧化催化剂,利用X射线衍射仪、物理吸附仪、扫描电子显微镜等仪器进行表征,考察了丙烯腈进气质量浓度、体积空速、贵金属上载量对催化剂性能的影响,并将其用于中试试验。结果表明:前驱体孔结构为狭缝孔,孔径分布集中在1~10 nm处,最可几孔径约为3.13 nm,比表面积为119.75 m2/g;成型催化剂中元素Al,Pd,Pt,Ce质量分数依次为25.95%,2.03%,1.20%,27.39%;在总进气量为500 m3/h,进气预热温度为400 ℃,进口丙烯腈最大质量浓度为3 800 mg/m3的条件下,出口丙烯腈质量浓度小于检出下限(0.25 mg/m3),符合国家标准要求的丙烯腈排放限制(0.5 mg/m3)。
Abstract:
The catalytic oxidation catalyst for acrylonitrile was prepared by coating method, and the catalyst was characterized by X-ray diffractometer, physical adsorption instrument, scanning electron microscope, etc. The effects of acrylonitrile concentration, volume space velocity, and uploading amount on the performance of the catalysts were investigated, and pilot test was carried out. The results showed that the pore structure of the precursor was slit pore, and the pore size distribution was concentrated at 1-10 nm, with the most available pore size of about 3.13 nm and the specific surface area of 119.75 m2/g. The mass fractions of elemental Al, Pd, Pt, and Ce in the molded catalyst were 25.95%, 2.03%, 1.20%, and 27.39%, respectively. Under the conditions of total inlet gas volume of 500 m3/h, inlet gas preheating temperature of 400 ℃, and maximum concentration of inlet acrylonitrile of 3 800 mg/m3, the concentration of outlet acrylonitrile was less than the lower limit of detection (0.25 mg/m3), which was in compliance with the national standard requirement of acrylonitrile emission limit of 0.5 mg/m3.

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备注/Memo

备注/Memo:
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更新日期/Last Update: 2024-07-10