Ammonia Synthesis via Nitrogen-Coupled Methane Conversion at Ambient Temperature and Plasma Conditions

甲烷 催化作用 化学 丙烷 介质阻挡放电 氮气 无机化学 乙炔 选择性 活化能 金属 乙烯 氮氧化物 氧化物 化学工程 有机化学 物理化学 电极 燃烧 工程类
作者
Xinpei Wang,Chao Qian,Shiya Tang,Shaodong Zhou
出处
期刊:Industrial & Engineering Chemistry Research [American Chemical Society]
卷期号:62 (44): 18416-18426 被引量:1
标识
DOI:10.1021/acs.iecr.3c02943
摘要

Ammonia synthesis has been coupled with methane conversion under plasma conditions by using Fe–Al composite metal oxides as the catalyst. The process for ammonia production starting from natural gas is thus shortened, and meanwhile, C2 hydrocarbons are generated as a byproduct with high selectivity. In order to overcome the high barrier for the activation of methane and nitrogen, dielectric barrier discharge (DBD) technology is used to input high-quality energy into the reaction system. A thorough examination of the performance of quite a few 3d-metal oxides, SiO2, and Al2O3 has been done to screen out the cheap, promising elements for CH4–N2 coupled conversion. Based on these results, the Fe–Al composite metal oxide is selected as the catalyst and prepared by a hydrothermal method. Under the condition of SEI (specific energy input, kJ/L) = 12 kJ/L, CH4/N2 = 3:1, and an optimal Al–Fe ratio of 2:1, the ammonia concentration reaches 1185.86 ppm. Upon further optimization of the specific energy input and feed gas ratio, with CH4/N2 = 1:3 and SEI = 24 kJ/L, the highest ammonia concentration reaches 3534.32 ppm. The highest methane conversion rate was 15.71% when the SEI was 24 kJ/L and CH4/N2 = 1:5. The highest concentration of C2 products was 1.74% with CH4/N2 = 1:1 and SEI = 24 kJ/L. Under this condition, the selectivity of ethane, ethylene, acetylene, propane, and propylene was 52.83, 4.37, 2.71, 18.03, and 0.59%, respectively. The structure of the catalyst was characterized by XRD, XPS, TGA, and BET.
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
平常的可乐完成签到 ,获得积分10
刚刚
深情安青应助momo采纳,获得10
1秒前
852应助王汉韬采纳,获得10
1秒前
Anmaterchem1完成签到,获得积分10
2秒前
潘善若发布了新的文献求助10
2秒前
西西完成签到,获得积分10
5秒前
乐乐应助潘善若采纳,获得10
7秒前
8秒前
量子星尘发布了新的文献求助10
8秒前
小小完成签到,获得积分10
8秒前
西瓜汁完成签到,获得积分10
9秒前
向日葵完成签到,获得积分10
10秒前
10秒前
11秒前
11秒前
11秒前
12秒前
王汉韬发布了新的文献求助10
13秒前
13秒前
15秒前
鸢也完成签到,获得积分10
15秒前
16秒前
110发布了新的文献求助10
17秒前
18秒前
露露发布了新的文献求助10
18秒前
坚定路人完成签到,获得积分10
19秒前
潘善若发布了新的文献求助10
20秒前
SciGPT应助沈清酌采纳,获得10
21秒前
22秒前
22秒前
23秒前
24秒前
科研通AI2S应助科研通管家采纳,获得10
26秒前
天天快乐应助科研通管家采纳,获得10
26秒前
英俊的铭应助科研通管家采纳,获得10
26秒前
英俊的铭应助科研通管家采纳,获得10
26秒前
赘婿应助科研通管家采纳,获得10
26秒前
隐形曼青应助Lili采纳,获得10
26秒前
隐形曼青应助科研通管家采纳,获得10
26秒前
SYLH应助科研通管家采纳,获得10
26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
‘Unruly’ Children: Historical Fieldnotes and Learning Morality in a Taiwan Village (New Departures in Anthropology) 400
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
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 3989297
求助须知:如何正确求助?哪些是违规求助? 3531418
关于积分的说明 11253893
捐赠科研通 3270097
什么是DOI,文献DOI怎么找? 1804884
邀请新用户注册赠送积分活动 882087
科研通“疑难数据库(出版商)”最低求助积分说明 809158