焙烧温度对铬基催化剂结构及其丙烷脱氢性能的影响

任栎; 艾珍; 张军; 胡志彪; 张新波; 谭建冬; 刘永; 梁衡

doi:10.12434/j.issn.2097-2547.20250407

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焙烧温度对铬基催化剂结构及其丙烷脱氢性能的影响

更新时间：2026-02-12

- 焙烧温度对铬基催化剂结构及其丙烷脱氢性能的影响
- Effects of calcination temperatures on structures of chromium-based catalysts and their performances in propane dehydrogenation
- 低碳化学与化工 2026: 1-10.
- 作者机构：
  
  西南化工研究设计院有限公司多孔材料与分离转化全国重点实验室，国家碳一化学工程技术研究中心，四川成都 610225
- 作者简介：
  
  任栎（1993—），博士，工程师，研究方向为低碳化工，E-mail：renli7@sinochem.com。
  梁衡（1987—），硕士，工程师，研究方向为低碳化工，E-mail：liangheng3@sinochem.com。
- 基金信息：
  
  四川省重大科技专项(2023ZDZX0005)
- DOI：10.12434/j.issn.2097-2547.20250407
  中图分类号： TQ203.2
- 收稿：2025-10-20，
  
  修回：2025-12-07，
  
  网络首发：2026-02-11，
- 稿件说明：
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任栎,艾珍,张军等.焙烧温度对铬基催化剂结构及其丙烷脱氢性能的影响[J].低碳化学与化工,

REN Li,AI Zhen,ZHANG Jun,et al.Effects of calcination temperatures on structures of chromium-based catalysts and their performances in propane dehydrogenation[J].Low-Carbon Chemistry and Chemical Engineering,
任栎,艾珍,张军等.焙烧温度对铬基催化剂结构及其丙烷脱氢性能的影响[J].低碳化学与化工, DOI：10.12434/j.issn.2097-2547.20250407.

REN Li,AI Zhen,ZHANG Jun,et al.Effects of calcination temperatures on structures of chromium-based catalysts and their performances in propane dehydrogenation[J].Low-Carbon Chemistry and Chemical Engineering, DOI：10.12434/j.issn.2097-2547.20250407.

摘要

在丙烷脱氢（PDH）反应中，铬基催化剂因其高催化活性和低成本而受到关注。铬基催化剂制备工艺的优化对改善其结构和催化性能至关重要。通过调节载体与活性组分的焙烧温度，制备了一系列铬基催化剂（CrAl-1~CrAl-4）。采用XRD、N

吸/脱附和NH

-TPD等对催化剂的结构进行了表征，并在固定床反应器上评价了催化剂的PDH反应催化性能。结果表明，在温度为580 ℃、压力为常压和空速为0.7 h

-1

的条件下，载体焙烧温度为800 ℃、活性组分焙烧温度为700 ℃所得CrAl-4表现出良好的催化性能，其丙烷转化率为47.2%，丙烯选择性为88.8%，积炭量为0.15%。此外，在经过多次高温处理后，CrAl-4的催化性能可保持稳定。

Abstract

In propane dehydrogenation (PDH)

chromium-based catalysts have attracted attention due to their high catalytic activity and low cost. Optimizing the preparation process of chromium-based catalysts is crucial for improving their structures and catalytic performances. By adjusting the calcination temperatures of the support and the active component

a series of chromium-based catalysts (CrAl-1 to CrAl-4) were prepared. The structures of catalysts were characterized by techniques such as XRD

adsorption/desorption and NH

-TPD

and their PDH catalytic performances were evaluated in a fixed-bed reactor. The results show that under conditions of 580 °C

atmospheric pressure and space velocity of 0.7 h

-1

CrAl-4 obtained under support calcination temperature of 800 ℃ and active component calcination temperature of 700 °C exhibits excellent catalytic performance

with propane conversion rate of 47.2%

propylene selectivity of 88.8% and coke deposition amount of 0.15%. Furthermore

the catalytic performance of CrAl-4 can remain stable after multiple high-temperature treatments.

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references

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