Article(id=1149741821800133015, tenantId=1146029695717560320, journalId=1146031787341344770, issueId=1149741815273800564, articleNumber=1003-3033(2024)01-0094-12, orderNo=null, doi=10.16265/j.cnki.issn1003-3033.2024.01.0299, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1691596800000, receivedDateStr=2023-08-10, revisedDate=1699977600000, revisedDateStr=2023-11-15, acceptedDate=null, acceptedDateStr=null, onlineDate=1752049411486, onlineDateStr=2025-07-09, pubDate=1706371200000, pubDateStr=2024-01-28, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1752049411486, onlineIssueDateStr=2025-07-09, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1752049411486, creator=13701087609, updateTime=1752049411486, updator=13701087609, issue=Issue{id=1149741815273800564, tenantId=1146029695717560320, journalId=1146031787341344770, year='2024', volume='34', issue='1', pageStart='1', pageEnd='252', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=0, createTime=1752049409931, creator=13701087609, updateTime=1756468937446, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1168278657316430156, tenantId=1146029695717560320, journalId=1146031787341344770, issueId=1149741815273800564, language=EN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1168278657316430157, tenantId=1146029695717560320, journalId=1146031787341344770, issueId=1149741815273800564, language=CN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=94, endPage=105, ext={EN=ArticleExt(id=1149741822257312159, articleId=1149741821800133015, tenantId=1146029695717560320, journalId=1146031787341344770, language=EN, title=Investigation of adsorption characteristics of C
2H
4 from coal in low-temperature stage, columnId=1149733269173878863, journalTitle=China Safety Science Journal, columnName=Safety engineering technology, runingTitle=null, highlight=null, articleAbstract=
In order to study the evolution characteristics of adsorption of C2H4by residual coal in closed area of coal mine goaf,taking non-cohesive coal in Lingxin Coal Mine of Ningxia as the research object,the adsorption of C2H4 by coal was tested by volumetric method. The effects of temperature,pressure and particle size on the adsorption capacity,adsorption rate and adsorption thermodynamics were analyzed. The results show that when the temperature is 30-60 ℃,the pressure is 0.15-0.45 MPa and the particle size is 20-120 mesh,the adsorption capacity of C2H4 increases with the decrease of temperature,the increase of pressure and the decrease of particle size. The adsorption process changes from fast to slow with time,then tends to equilibrium,and the adsorption rate rapidly tends to 0. When the temperature and particle size are constant,the adsorption rate increases with the increase of equilibrium pressure. When the temperature and pressure are constant,the adsorption rate increases with the decrease of particle size. At the same adsorption capacity,the smaller the particle size is,the lower the equilibrium adsorption heat is. The equivalent adsorption heat of C2H4 adsorbed by coal samples with different particle sizes is 0.69-40.23 kJ/mol,which belongs to physical adsorption. The pressure correction coefficient is introduced to fit,and the pressure and particle size are proportional to the reduction of adsorption free energy when the temperature is constant. Under the condition of constant particle size,the temperature is inversely proportional to the decrease of adsorption free energy. The adsorption entropy of C2H4 for coal samples with different particle sizes is negative,and the adsorption entropy increases with the increase of adsorption capacity and the decrease of temperature. Under the same adsorption capacity,the larger the particle size,the greater the adsorption entropy.
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2H
4的吸附特性研究, columnId=1149733269727526997, journalTitle=中国安全科学学报, columnName=安全工程技术, runingTitle=null, highlight=null, articleAbstract=
为研究煤矿采空区封闭区遗煤吸附C2H4的演化特征,以宁夏灵新煤矿不粘煤为研究对象,采用容量法进行煤吸附C2H4试验,分析温压与粒径对煤吸附C2H4过程中的吸附量、吸附速率和吸附热力学等特征变化的影响。研究表明:当温度为30~60 ℃、压力为0.15~0.45 MPa、粒径为 20~120 目时,无论是温度降低、压力升高还是粒径减小,C2H4的吸附量均增加;吸附过程随时间由快变慢,进而趋于平衡,吸附速率快速趋于0;温度与粒径不变,平衡压力越大吸附速率越大;温度与压力不变,粒径越小吸附速率越快。吸附量相同,粒径越小等量吸附热越低;各粒径煤样吸附C2H4的等量吸附热为0.69~40.23 kJ/mol,属于物理吸附。引入压力修正系数进行拟合,温度不变,压力和粒径与吸附自由能降低值呈正比关系;粒径不变,温度与吸附自由能降低值呈反比关系。各粒径煤样吸附C2H4的吸附熵均为负值,吸附量增大,温度降低,吸附熵值均增大;吸附量相同条件下,粒径越大,吸附熵值越大。
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 |
文 虎 (1972—),男,新疆石河子人,博士,教授,主要从事煤炭自燃机制、预测与防治技术和安全工程及技术等方面的研究。E-mail:wenh@xust.edu.cn。 |
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1 College of Safety Science and Engineering,Xi'an University of Science and Technology,Xi'an Shaanxi 710054,China
2 Shaanxi Key Laboratory of Prevention and Control of Coal Fire,Xi'an University of Science and Technology,Xi'an Shaanxi 710054,China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1168123051112673925, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741821800133015, authorId=1168123050970067582, language=CN, stringName=文虎, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1 西安科技大学 安全科学与工程学院,陕西 西安 710054
2 西安科技大学 陕西省煤火灾防治重点实验室,陕西 西安 710054, bio={"img":"ZZUy20DnydevDLBsTE3lIQ==","content":"
文 虎 (1972—),男,新疆石河子人,博士,教授,主要从事煤炭自燃机制、预测与防治技术和安全工程及技术等方面的研究。E-mail:wenh@xust.edu.cn。
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文 虎 (1972—),男,新疆石河子人,博士,教授,主要从事煤炭自燃机制、预测与防治技术和安全工程及技术等方面的研究。E-mail:wenh@xust.edu.cn。
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2 西安科技大学 陕西省煤火灾防治重点实验室,陕西 西安 710054)])]), Author(id=1168123051196560008, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741821800133015, orderNo=1, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1168123051288834700, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741821800133015, authorId=1168123051196560008, language=EN, stringName=Zhuofeng LI, firstName=Zhuofeng, middleName=null, lastName=LI, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1 College of Safety Science and Engineering,Xi'an University of Science and Technology,Xi'an Shaanxi 710054,China
2 Shaanxi Key Laboratory of Prevention and Control of Coal Fire,Xi'an University of Science and Technology,Xi'an Shaanxi 710054,China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1168123051364332174, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741821800133015, authorId=1168123051196560008, language=CN, stringName=李倬锋, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1 西安科技大学 安全科学与工程学院,陕西 西安 710054
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2 西安科技大学 陕西省煤火灾防治重点实验室,陕西 西安 710054)])]), Author(id=1168123051435635345, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741821800133015, orderNo=2, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1168123051515327124, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741821800133015, authorId=1168123051435635345, language=EN, stringName=Duo ZHANG, firstName=Duo, middleName=null, lastName=ZHANG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1 College of Safety Science and Engineering,Xi'an University of Science and Technology,Xi'an Shaanxi 710054,China
2 Shaanxi Key Laboratory of Prevention and Control of Coal Fire,Xi'an University of Science and Technology,Xi'an Shaanxi 710054,China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1168123051611796118, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741821800133015, authorId=1168123051435635345, language=CN, stringName=张铎, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1 西安科技大学 安全科学与工程学院,陕西 西安 710054
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1 College of Safety Science and Engineering,Xi'an University of Science and Technology,Xi'an Shaanxi 710054,China
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1 西安科技大学 安全科学与工程学院,陕西 西安 710054
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2 西安科技大学 陕西省煤火灾防治重点实验室,陕西 西安 710054)])]), Author(id=1168123051880231585, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741821800133015, orderNo=4, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1168123051947340453, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741821800133015, authorId=1168123051880231585, language=EN, stringName=Jie LI, firstName=Jie, middleName=null, lastName=LI, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1 College of Safety Science and Engineering,Xi'an University of Science and Technology,Xi'an Shaanxi 710054,China
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Low pressure nitrogen (77K) adsorption/ desorption curve of each coal sample, figureFileSmall=g1oarjk1HQ9JbLwZWClrOw==, figureFileBig=pVQkepb1qUf7esUU05xnsw==, tableContent=null), ArticleFig(id=1168123053201437380, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741821800133015, language=CN, label=图1, caption=
各煤样低压氮气(77K)吸(脱)附曲线 注:相对压力为氮气压力与氮气饱和蒸气压力的比值。
, figureFileSmall=g1oarjk1HQ9JbLwZWClrOw==, figureFileBig=pVQkepb1qUf7esUU05xnsw==, tableContent=null), ArticleFig(id=1168123053356626630, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741821800133015, language=EN, label=Fig.2, caption=
Schematic diagram of C2H4 adsorption device, figureFileSmall=p1EeBFxqiEScZQb/LW54lg==, figureFileBig=KEqtbwnTr6lMdVTGeTCC8A==, tableContent=null), ArticleFig(id=1168123053469872840, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741821800133015, language=CN, label=图2, caption=
C2H4吸附装置, figureFileSmall=p1EeBFxqiEScZQb/LW54lg==, figureFileBig=KEqtbwnTr6lMdVTGeTCC8A==, tableContent=null), ArticleFig(id=1168123053541176010, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741821800133015, language=EN, label=Fig.3, caption=
Adsorption curve of C2H4 adsorption capacity with pressure of coal samples of different particle sizes under different temperature conditions, figureFileSmall=QWsi0b/Oqugmu+hcMn+J1g==, figureFileBig=PmFfx/4UJdLuxn+kN+16SA==, tableContent=null), ArticleFig(id=1168123053620867788, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741821800133015, language=CN, label=图3, caption=
不同温度条件下各粒径煤样吸附C2H4的吸附量随压力的变化, figureFileSmall=QWsi0b/Oqugmu+hcMn+J1g==, figureFileBig=PmFfx/4UJdLuxn+kN+16SA==, tableContent=null), ArticleFig(id=1168123053734113997, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741821800133015, language=EN, label=Fig.4, caption=
Fitting curve of adsorption capacity of C2H4 adsorbed by coal samples with different particle sizes varying with time at different temperatures and 0.15 MPa, figureFileSmall=OyUT4QITRbQmF5H0KlqC5A==, figureFileBig=7CNVgdIFnYYMxUi0xaKmTQ==, tableContent=null), ArticleFig(id=1168123053822194383, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741821800133015, language=CN, label=图4, caption=
不同温度0.15MPa条件下各粒径煤样吸附C2H4的吸附量随时间变化的拟合曲线, figureFileSmall=OyUT4QITRbQmF5H0KlqC5A==, figureFileBig=7CNVgdIFnYYMxUi0xaKmTQ==, tableContent=null), ArticleFig(id=1168123053906080465, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741821800133015, language=EN, label=Fig.5, caption=
Average adsorption rate of C2H4 in the first minute of coal samples with different particle sizes, figureFileSmall=Oy5SbKdUFQxo6p7IjnEIJg==, figureFileBig=3/DpGcA5zelVzZr38TLnKw==, tableContent=null), ArticleFig(id=1168123053985772243, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741821800133015, language=CN, label=图5, caption=
各粒径煤样的第1分钟C2H4吸附平均速率, figureFileSmall=Oy5SbKdUFQxo6p7IjnEIJg==, figureFileBig=3/DpGcA5zelVzZr38TLnKw==, tableContent=null), ArticleFig(id=1168123054052881109, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741821800133015, language=EN, label=Fig.6, caption=
lnP-n relationship during adsorption of C2H4 in coal samples of each particle size, figureFileSmall=gZj3JCK5ekQJJ88uAPEVtA==, figureFileBig=fUXfB3hAc0hzz1GufBpFsQ==, tableContent=null), ArticleFig(id=1168123054149350102, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741821800133015, language=CN, label=图6, caption=
各粒径煤样吸附C2H4过程中lnP-n关系, figureFileSmall=gZj3JCK5ekQJJ88uAPEVtA==, figureFileBig=fUXfB3hAc0hzz1GufBpFsQ==, tableContent=null), ArticleFig(id=1168123054287762136, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741821800133015, language=EN, label=Fig.7, caption=
lnP-T-1 relationship during adsorption of C2H4 in coal samples of each particle size, figureFileSmall=PKjnRGXHu+u6SJRFYQAf0A==, figureFileBig=V8qMciq9LSGqPgXk0+V4mA==, tableContent=null), ArticleFig(id=1168123054375842522, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741821800133015, language=CN, label=图7, caption=
各粒径煤样吸附C2H4过程中lnP-T-1关系, figureFileSmall=PKjnRGXHu+u6SJRFYQAf0A==, figureFileBig=V8qMciq9LSGqPgXk0+V4mA==, tableContent=null), ArticleFig(id=1168123054447145692, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741821800133015, language=EN, label=Fig.8, caption=
Change curves of adsorption heat for C2H4 by coal samples with different particle sizes, figureFileSmall=LgEFrCaFUEfIbXs8Nk9r+A==, figureFileBig=BvV9nOgnWkNJHsXtgfQSkg==, tableContent=null), ArticleFig(id=1168123054510060254, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741821800133015, language=CN, label=图8, caption=
各粒径煤样吸附C2H4的等量吸附热变化曲线, figureFileSmall=LgEFrCaFUEfIbXs8Nk9r+A==, figureFileBig=BvV9nOgnWkNJHsXtgfQSkg==, tableContent=null), ArticleFig(id=1168123054606529248, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741821800133015, language=EN, label=Fig.9, caption=
Total reduction of C2H4 adsorption surface free energy of coal samples with different particle sizes at different temperatures, figureFileSmall=2VWWBRt/PVkQvJyO33tdVQ==, figureFileBig=5VSFgPoaK5aTMJ/S7wI4aw==, tableContent=null), ArticleFig(id=1168123054736552674, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741821800133015, language=CN, label=图9, caption=
不同温度条件下各粒径煤样吸附C2H4的吸附表面自由能总降低值, figureFileSmall=2VWWBRt/PVkQvJyO33tdVQ==, figureFileBig=5VSFgPoaK5aTMJ/S7wI4aw==, tableContent=null), ArticleFig(id=1168123054799467236, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741821800133015, language=EN, label=Fig.10, caption=
Adsorption entropy of C2H4 on coal samples with different particle sizes at different temperatures, figureFileSmall=xVAqkpWyDvzKd8ooLpMe0Q==, figureFileBig=iz1Em1ZFsNdNfuFt8+p+WQ==, tableContent=null), ArticleFig(id=1168123054862381798, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741821800133015, language=CN, label=图10, caption=
不同温度条件下各粒径煤样吸附C2H4的吸附熵, figureFileSmall=xVAqkpWyDvzKd8ooLpMe0Q==, figureFileBig=iz1Em1ZFsNdNfuFt8+p+WQ==, tableContent=null), ArticleFig(id=1168123054946267880, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741821800133015, language=EN, label=Tab.1, caption=
Pore volume and aperture distribution characteristics of liquid nitrogen adsorption experiment
, figureFileSmall=null, figureFileBig=null, tableContent=
| 粒径/目 | 孔容/(mL·g-1) | 总孔容/ (mL·g-1) | 孔容比/% |
| 中孔 | 过渡孔 | 微孔 | 中孔 | 过渡孔 | 微孔 |
| [20,40) | 0.002 9 | 0.005 1 | 0.004 3 | 0.012 3 | 23.44 | 40.08 | 38.97 |
| [40,60) | 0.003 6 | 0.005 9 | 0.006 4 | 0.015 9 | 22.64 | 37.11 | 40.25 |
| 中孔 | 过渡孔 | 微孔 | | 中孔 | 过渡孔 | 微孔 |
| [60,80) | 0.003 9 | 0.006 04 | 0.011 3 | 0.021 24 | 18.36 | 28.44 | 53.20 |
| [80,100) | 0.005 4 | 0.007 4 | 0.015 2 | 0.028 | 19.29 | 26.43 | 54.28 |
| [100,120) | 0.006 6 | 0.008 91 | 0.020 4 | 0.035 91 | 20.05 | 24.89 | 55.88 |
), ArticleFig(id=1168123055013376746, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741821800133015, language=CN, label=表1, caption=
液氮吸附试验孔容孔径分布特征
, figureFileSmall=null, figureFileBig=null, tableContent=
| 粒径/目 | 孔容/(mL·g-1) | 总孔容/ (mL·g-1) | 孔容比/% |
| 中孔 | 过渡孔 | 微孔 | 中孔 | 过渡孔 | 微孔 |
| [20,40) | 0.002 9 | 0.005 1 | 0.004 3 | 0.012 3 | 23.44 | 40.08 | 38.97 |
| [40,60) | 0.003 6 | 0.005 9 | 0.006 4 | 0.015 9 | 22.64 | 37.11 | 40.25 |
| 中孔 | 过渡孔 | 微孔 | | 中孔 | 过渡孔 | 微孔 |
| [60,80) | 0.003 9 | 0.006 04 | 0.011 3 | 0.021 24 | 18.36 | 28.44 | 53.20 |
| [80,100) | 0.005 4 | 0.007 4 | 0.015 2 | 0.028 | 19.29 | 26.43 | 54.28 |
| [100,120) | 0.006 6 | 0.008 91 | 0.020 4 | 0.035 91 | 20.05 | 24.89 | 55.88 |
), ArticleFig(id=1168123055126622956, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741821800133015, language=EN, label=Tab.2, caption=
Specific surface area characteristics of liquid nitrogen adsorption experiment
, figureFileSmall=null, figureFileBig=null, tableContent=
| 粒径/目 | 孔比表面积/(m2·g-1) | 总比表面积/ (m2·g-1) | 比表面积比/% |
| 中孔 | 过渡孔 | 微孔 | 中孔 | 过渡孔 | 微孔 |
| [20,40) | 0.09 | 0.83 | 1.20 | 2.12 | 3.77 | 28.97 | 73.82 |
| [40,60) | 0.12 | 0.92 | 3.23 | 4.27 | 2.81 | 21.55 | 75.60 |
| [60,80) | 0.14 | 0.95 | 7.25 | 8.34 | 1.68 | 11.39 | 86.93 |
| [80,100) | 0.17 | 1.09 | 10.30 | 11.56 | 1.47 | 9.43 | 89.10 |
| [100,120) | 0.20 | 1.17 | 12.56 | 13.93 | 1.28 | 8.55 | 90.80 |
), ArticleFig(id=1168123055197926125, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741821800133015, language=CN, label=表2, caption=
液氮吸附试验比表面积特征
, figureFileSmall=null, figureFileBig=null, tableContent=
| 粒径/目 | 孔比表面积/(m2·g-1) | 总比表面积/ (m2·g-1) | 比表面积比/% |
| 中孔 | 过渡孔 | 微孔 | 中孔 | 过渡孔 | 微孔 |
| [20,40) | 0.09 | 0.83 | 1.20 | 2.12 | 3.77 | 28.97 | 73.82 |
| [40,60) | 0.12 | 0.92 | 3.23 | 4.27 | 2.81 | 21.55 | 75.60 |
| [60,80) | 0.14 | 0.95 | 7.25 | 8.34 | 1.68 | 11.39 | 86.93 |
| [80,100) | 0.17 | 1.09 | 10.30 | 11.56 | 1.47 | 9.43 | 89.10 |
| [100,120) | 0.20 | 1.17 | 12.56 | 13.93 | 1.28 | 8.55 | 90.80 |
), ArticleFig(id=1168123055277617903, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741821800133015, language=EN, label=Tab.3, caption=
Average adsorption rate of C2H4 in the first minute of coal samples of each particle size
, figureFileSmall=null, figureFileBig=null, tableContent=
| 粒径/目 | 吸附平均速率/(mL·g-1·s-1) |
| [20,40) | 3.12×10-4~5.32×10-4 |
| [40,60) | 3.57×10-4~5.76×10-4 |
| [60,80) | 3.91×10-4~7.05×10-4 |
| [80,100) | 5.231×10-4~9.88×10-4 |
| [100,120) | 6.77×10-4~1.36×10-3 |
), ArticleFig(id=1168123055357309681, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741821800133015, language=CN, label=表3, caption=
各粒径煤样第一分钟C2H4吸附平均速率
, figureFileSmall=null, figureFileBig=null, tableContent=
| 粒径/目 | 吸附平均速率/(mL·g-1·s-1) |
| [20,40) | 3.12×10-4~5.32×10-4 |
| [40,60) | 3.57×10-4~5.76×10-4 |
| [60,80) | 3.91×10-4~7.05×10-4 |
| [80,100) | 5.231×10-4~9.88×10-4 |
| [100,120) | 6.77×10-4~1.36×10-3 |
), ArticleFig(id=1168123055449584371, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741821800133015, language=EN, label=Tab.4, caption=
lnP-n fitting results during the adsorption of C2H4 in coal samples of various particle sizes
, figureFileSmall=null, figureFileBig=null, tableContent=
| 粒径/目 | 温度/℃ | A | B | 拟合优度 |
| [20,40) | 30 | 6.97 | 5.04 | 0.96 |
| 40 | 7.19 | 5.09 | 0.96 |
| 50 | 7.42 | 5.10 | 0.96 |
| 60 | 8.48 | 5.11 | 0.95 |
| [40,60) | 30 | 4.24 | 5.03 | 0.98 |
| 40 | 4.50 | 5.06 | 0.98 |
| 50 | 5.49 | 5.06 | 0.98 |
| 60 | 6.13 | 5.06 | 0.99 |
| [60,80) | 30 | 2.82 | 5.04 | 0.98 |
| 40 | 3.58 | 5.07 | 0.99 |
| 50 | 3.93 | 5.06 | 0.96 |
| 60 | 4.67 | 5.08 | 0.99 |
| [80,100) | 30 | 1.95 | 5.03 | 0.99 |
| 40 | 2.30 | 5.04 | 0.99 |
| 50 | 2.34 | 5.05 | 0.99 |
| 60 | 2.65 | 5.06 | 0.99 |
| [100,120) | 30 | 1.39 | 5.07 | 0.98 |
| 40 | 1.51 | 5.07 | 0.98 |
| 50 | 1.58 | 5.07 | 0.98 |
| 60 | 1.67 | 5.09 | 0.98 |
), ArticleFig(id=1168123055575413493, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741821800133015, language=CN, label=表4, caption=
各粒径煤样吸附C2H4过程中lnP-n拟合结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 粒径/目 | 温度/℃ | A | B | 拟合优度 |
| [20,40) | 30 | 6.97 | 5.04 | 0.96 |
| 40 | 7.19 | 5.09 | 0.96 |
| 50 | 7.42 | 5.10 | 0.96 |
| 60 | 8.48 | 5.11 | 0.95 |
| [40,60) | 30 | 4.24 | 5.03 | 0.98 |
| 40 | 4.50 | 5.06 | 0.98 |
| 50 | 5.49 | 5.06 | 0.98 |
| 60 | 6.13 | 5.06 | 0.99 |
| [60,80) | 30 | 2.82 | 5.04 | 0.98 |
| 40 | 3.58 | 5.07 | 0.99 |
| 50 | 3.93 | 5.06 | 0.96 |
| 60 | 4.67 | 5.08 | 0.99 |
| [80,100) | 30 | 1.95 | 5.03 | 0.99 |
| 40 | 2.30 | 5.04 | 0.99 |
| 50 | 2.34 | 5.05 | 0.99 |
| 60 | 2.65 | 5.06 | 0.99 |
| [100,120) | 30 | 1.39 | 5.07 | 0.98 |
| 40 | 1.51 | 5.07 | 0.98 |
| 50 | 1.58 | 5.07 | 0.98 |
| 60 | 1.67 | 5.09 | 0.98 |
), ArticleFig(id=1168123055655105271, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741821800133015, language=EN, label=Tab.5, caption=
Equivalent adsoption heat of C2H4 on coal samples with different particle sizes
, figureFileSmall=null, figureFileBig=null, tableContent=
| 粒径/目 | 等量吸附热/(kJ·mol-1) | 平均值/(kJ·mol-1) |
| [20,40) | 4.02~40.23 | 20.91 |
| [40,60) | 3.62~37.92 | 19.19 |
| [60,80) | 3.31~31.83 | 16.59 |
| [80,100) | 1.77~14.25 | 7.74 |
| [100,120) | 0.69~6.20 | 3.21 |
), ArticleFig(id=1168123055722214137, tenantId=1146029695717560320, journalId=1146031787341344770, articleId=1149741821800133015, language=CN, label=表5, caption=
各粒径煤样对C2H4等量吸附热
, figureFileSmall=null, figureFileBig=null, tableContent=
| 粒径/目 | 等量吸附热/(kJ·mol-1) | 平均值/(kJ·mol-1) |
| [20,40) | 4.02~40.23 | 20.91 |
| [40,60) | 3.62~37.92 | 19.19 |
| [60,80) | 3.31~31.83 | 16.59 |
| [80,100) | 1.77~14.25 | 7.74 |
| [100,120) | 0.69~6.20 | 3.21 |
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