已入深夜,您辛苦了!由于当前在线用户较少,发布求助请尽量完整地填写文献信息,科研通机器人24小时在线,伴您度过漫漫科研夜!祝你早点完成任务,早点休息,好梦!

Modeling the Selectivity of Hydrotalcite-Based Catalyst in the Propane Dehydrogenation Reaction

丙烷 石脑油 催化作用 脱氢 水滑石 选择性 石油化工 化学工程 丙烯 焦炭 化学 开裂 催化裂化 柴油 材料科学 有机化学 工程类
作者
Giovanni Festa,Palma Contaldo,Marco Martino,Eugenio Meloni,Vincenzo Palma
出处
期刊:Industrial & Engineering Chemistry Research [American Chemical Society]
卷期号:62 (41): 16622-16637 被引量:4
标识
DOI:10.1021/acs.iecr.3c01076
摘要

The propylene production processes currently used in the petrochemical industry (fluid catalytic cracking and steam cracking of naphtha and light diesel) are unable to meet the increase of propylene demand for industrial applications. For this reason, alternative processes for propylene production have been investigated, and among the others, the propane dehydrogenation (PDH) process, allowing the production of propylene as a main product, has been industrially implemented (e.g., Catofin and Oleflex processes). The main drawback of such processes is closely linked to the high temperature required to reach a sustainable propane conversion that affects catalyst stability due to coke formation on the catalyst surface. Accordingly, the periodic regeneration of the catalytic bed is required. In this work, the performance in the PDH reaction of different Sn-Pt catalysts, prepared starting by alumina- and hydrotalcite-based supports, is investigated in terms of propane conversion and selectivity to propylene in order to identify a more stable catalyst than the commercial ones. The experimental tests evidenced that the best performance was obtained using the catalyst prepared on commercial pellets of hydrotalcite PURALOX MG70. This catalyst has shown, under pressure conditions of 1 and 5 bar (in order to evaluate the potential future application in integrated membrane reactors), propane conversion values close to the thermodynamic equilibrium ones in all of the investigated temperature ranges (500-600 °C) and the selectivity was always higher than 95%. So, this catalyst was also tested in a stability run, performed at 500 °C and 5 bar: the results highlighted the loss of only 12% in the propane conversion with no changes in the selectivity to propylene. Properly designed experimental tests have also been performed in order to evaluate the kinetic parameters, and the developed mathematical model has been optimized to effectively describe the system behavior and the catalyst deactivation.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
立军完成签到,获得积分10
刚刚
Sarah完成签到 ,获得积分10
1秒前
落晖完成签到 ,获得积分10
1秒前
Chi_bio发布了新的文献求助10
1秒前
xx1234567890发布了新的文献求助10
2秒前
张aa完成签到 ,获得积分10
2秒前
风鱼完成签到 ,获得积分10
3秒前
没有昵称完成签到 ,获得积分10
6秒前
三井库里发布了新的文献求助10
8秒前
12秒前
洛芷发布了新的文献求助10
15秒前
在水一方应助hugeng采纳,获得10
15秒前
Eliauk完成签到 ,获得积分10
17秒前
Jepsen完成签到 ,获得积分10
17秒前
17秒前
hhhi发布了新的文献求助10
22秒前
空里流霜不觉飞完成签到 ,获得积分10
23秒前
26秒前
hugeng完成签到,获得积分10
27秒前
noothinh完成签到,获得积分10
28秒前
Chi_bio完成签到,获得积分10
29秒前
lizigongzhu完成签到,获得积分10
29秒前
hugeng发布了新的文献求助10
30秒前
ding应助昏睡的南霜采纳,获得10
31秒前
ding应助曹大壮采纳,获得10
31秒前
yydragen应助黎乐荷采纳,获得30
31秒前
31秒前
Lucas应助废式脂肪采纳,获得10
32秒前
35秒前
lizigongzhu发布了新的文献求助10
38秒前
三井库里发布了新的文献求助10
40秒前
念初发布了新的文献求助10
41秒前
桐桐应助水之冬采纳,获得10
42秒前
43秒前
废式脂肪发布了新的文献求助10
46秒前
46秒前
今后应助hhhi采纳,获得10
48秒前
迷路翠绿发布了新的文献求助10
50秒前
漂亮白枫发布了新的文献求助10
51秒前
废式脂肪完成签到,获得积分10
53秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
基于可调谐半导体激光吸收光谱技术泄漏气体检测系统的研究 350
Robot-supported joining of reinforcement textiles with one-sided sewing heads 320
Aktuelle Entwicklungen in der linguistischen Forschung 300
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3989918
求助须知:如何正确求助?哪些是违规求助? 3532013
关于积分的说明 11255831
捐赠科研通 3270829
什么是DOI,文献DOI怎么找? 1805053
邀请新用户注册赠送积分活动 882233
科研通“疑难数据库(出版商)”最低求助积分说明 809216