Hydrogen sorption and diffusion in coals: Implications for hydrogen geo-storage

吸附 氢气储存 化学 吸附 碳纤维 扩散 热扩散率 化学工程 材料科学 热力学 有机化学 复合材料 复合数 工程类 物理
作者
Ang Liu,Shimin Liu
出处
期刊:Applied Energy [Elsevier BV]
卷期号:334: 120746-120746 被引量:23
标识
DOI:10.1016/j.apenergy.2023.120746
摘要

A full-scale hydrogen economy requires a bulk energy storage system to store the excess energy as a buffer and to fulfill the demand constantly. Hydrogen sorption capacity and diffusion behavior in coal quantify its potential to become a well storage candidate from geological formations. In this study, the sorption and diffusion behaviors of eight coals across the major coalfields in the United States in terms of their ranks, fixed carbon content, vitrinite reflectance, vitrinite or huminite content, O/C ratio, and H/C ratio were measured and analyzed. The sorption data shown that all eight coals have considerable sorption capacities, among which the LvB coal has the maximum adsorption capacity of ∼ 1.17 mmol/g, followed by An coal with the maximum hydrogen adsorption capacity of ∼ 0.95 mmol/g and the SemiAn coal of approximately 0.82 mmol/g. The fixed carbon content and typically the O/C ratio are obviously correlated with the maximum hydrogen adsorption capacity in coals, which may be attributed to the oxygen-containing functional groups. Hydrogen has superior diffusive gas deliverability defined by hydrogen effective diffusivity. The effective diffusivities of hydrogen in SemiAn coal decreases from ∼ 0.00156 to ∼ 9.26 × 10-41/s with pressure increases from ∼ 2.45 MPa to ∼ 10.07 MPa, among which the lowest diffusivity at ∼ 10.07 MPa is even ∼ 4 times higher than that of CH4 at equivalent pressure. This is a vantage for a promising field candidate of hydrogen storage in coal with maximized injectivity. The results reveal that the sorption and diffusion behaviors of hydrogen in different rank coals towards the depleted coalbed methane formation with injected hydrogen can serve as a geological “H2-Battery”.
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
自由的远侵完成签到 ,获得积分10
刚刚
巧克力手印完成签到,获得积分10
1秒前
屈岂愈发布了新的文献求助10
1秒前
2秒前
大橙子发布了新的文献求助10
3秒前
量子星尘发布了新的文献求助10
4秒前
jenny完成签到,获得积分10
5秒前
祁乐安完成签到,获得积分10
6秒前
naiyouqiu1989完成签到,获得积分10
7秒前
zjhzslq发布了新的文献求助10
8秒前
baoxiaozhai完成签到 ,获得积分10
9秒前
fy完成签到,获得积分10
10秒前
强公子完成签到,获得积分10
11秒前
17秒前
song完成签到 ,获得积分10
18秒前
怡然小蚂蚁完成签到 ,获得积分10
18秒前
小橙子完成签到,获得积分10
20秒前
SciGPT应助滴答采纳,获得10
20秒前
大气白翠完成签到,获得积分10
21秒前
确幸完成签到,获得积分10
21秒前
zjhzslq完成签到,获得积分10
21秒前
xdc发布了新的文献求助10
22秒前
ommphey完成签到 ,获得积分10
22秒前
牛哥还是强啊完成签到 ,获得积分10
23秒前
科研通AI2S应助屈岂愈采纳,获得10
24秒前
好名字完成签到,获得积分10
25秒前
kongzhiqiqi完成签到,获得积分10
26秒前
滴答完成签到 ,获得积分10
26秒前
浅浅殇完成签到,获得积分10
30秒前
31秒前
33秒前
滴答发布了新的文献求助10
36秒前
高高的天亦完成签到 ,获得积分10
37秒前
星空完成签到 ,获得积分10
38秒前
文艺的青旋完成签到 ,获得积分10
38秒前
青黛完成签到 ,获得积分10
45秒前
大橙子发布了新的文献求助10
49秒前
领导范儿应助科研通管家采纳,获得10
50秒前
量子星尘发布了新的文献求助10
54秒前
明钟达完成签到 ,获得积分10
1分钟前
高分求助中
【提示信息,请勿应助】关于scihub 10000
Les Mantodea de Guyane: Insecta, Polyneoptera [The Mantids of French Guiana] 3000
徐淮辽南地区新元古代叠层石及生物地层 3000
The Mother of All Tableaux: Order, Equivalence, and Geometry in the Large-scale Structure of Optimality Theory 3000
Handbook of Industrial Diamonds.Vol2 1100
Global Eyelash Assessment scale (GEA) 1000
Picture Books with Same-sex Parented Families: Unintentional Censorship 550
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 4038128
求助须知:如何正确求助?哪些是违规求助? 3575831
关于积分的说明 11373827
捐赠科研通 3305610
什么是DOI,文献DOI怎么找? 1819255
邀请新用户注册赠送积分活动 892655
科研通“疑难数据库(出版商)”最低求助积分说明 815022