清晨好,您是今天最早来到科研通的研友!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,伴您科研之路漫漫前行!

Evolution of nickel species in reactive adsorption desulfurization of benzothiophene

苯并噻吩 烟气脱硫 非阻塞I/O 吸附 化学 庚烷 硫化 无机化学 化学工程 催化作用 有机化学 硫黄 噻吩 工程类
作者
Yao Sun,Lan Li,Feng Ju,Hao Ling
出处
期刊:Separation and Purification Technology [Elsevier BV]
卷期号:283: 120204-120204 被引量:11
标识
DOI:10.1016/j.seppur.2021.120204
摘要

Reactive adsorption desulfurization (RADS) is one of the main means for the ultra-deep desulfurization of gasoline. Metallic Ni is normally assumed as the main RADS active site, and NiSx is the intermediate phase during RADS process. In this work, the evolution of nickel species, especially NiSx, were examined over NiO/ZnO-Al2O3-SiO2 and NiSO4/ZnO-Al2O3-SiO2 adsorbents. Results showed that both of the adsorbents performed high desulfurization efficiency. However, differences of the activation mechanism were observed. For the NiO adsorbent, BT (benzothiophene) can be adsorbed onto the reduced Ni sites, then the C-S bond ruptures to form NiSx. For the NiSO4 adsorbent, NiSO4 phase are firstly self-sulfied to NiSx in the presence of hydrogen or n-heptane. XRD and XPS results presented that NiO and NiSx could be found after the RADS reaction in two spent adsorbents. As same as the sulfurization of NiO into NiSx is a primary condition for the RADS reaction, NiSO4 can be partly in situ self-sulfied to NiSx. To verify the self-sulfidation of NiSO4, H2 pretreatment showed that there were NiO and NiSx species on the pretreated NiSO4/ZnO-Al2O3-SiO2 adsorbent, and the desulfurization performance of the adsorbent was obviously improved, indicating that the formation and accumulations of NiSx could promote the RADS activity. At last, the RADS mechanism of BT on two kinds of adsorbents are presented and discussed based on the assumption of NiO and NiSx as the main active components.
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
zhangsenbing完成签到,获得积分10
2秒前
春天的粥完成签到 ,获得积分10
5秒前
CCsci完成签到 ,获得积分10
5秒前
9秒前
Brave完成签到,获得积分10
15秒前
Rondab应助MoonYC采纳,获得10
17秒前
情怀应助zhangsenbing采纳,获得20
18秒前
柒柒完成签到,获得积分10
18秒前
yeurekar完成签到,获得积分10
22秒前
哪吒完成签到,获得积分20
24秒前
27秒前
Cherish应助吴吴采纳,获得10
28秒前
香蕉觅云应助mbxjsy采纳,获得10
33秒前
小苹果发布了新的文献求助10
34秒前
研友_LBRNbL完成签到 ,获得积分10
38秒前
40秒前
guoxihan完成签到,获得积分10
43秒前
Bryan应助科研通管家采纳,获得10
45秒前
Bryan应助科研通管家采纳,获得10
45秒前
Bryan应助科研通管家采纳,获得10
45秒前
45秒前
45秒前
Bryan应助科研通管家采纳,获得10
45秒前
Bryan应助科研通管家采纳,获得10
45秒前
小星历险记完成签到 ,获得积分10
45秒前
wallacetan完成签到,获得积分10
50秒前
不辣的完成签到 ,获得积分10
51秒前
缓慢的甜瓜完成签到 ,获得积分10
52秒前
RIPCCCP完成签到,获得积分10
1分钟前
量子星尘发布了新的文献求助10
1分钟前
布施德完成签到 ,获得积分10
1分钟前
高高高完成签到 ,获得积分10
1分钟前
美丽的楼房完成签到 ,获得积分10
1分钟前
Hina完成签到,获得积分10
1分钟前
Djnsbj发布了新的文献求助10
1分钟前
1分钟前
忐忑的天真完成签到 ,获得积分10
1分钟前
路路完成签到 ,获得积分10
1分钟前
ycyang发布了新的文献求助10
2分钟前
量子星尘发布了新的文献求助10
2分钟前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
Picture Books with Same-sex Parented Families: Unintentional Censorship 700
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
Nucleophilic substitution in azasydnone-modified dinitroanisoles 500
不知道标题是什么 500
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
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 3976735
求助须知:如何正确求助?哪些是违规求助? 3520831
关于积分的说明 11204848
捐赠科研通 3257602
什么是DOI,文献DOI怎么找? 1798800
邀请新用户注册赠送积分活动 877897
科研通“疑难数据库(出版商)”最低求助积分说明 806648