CH4 and CO2 Adsorption Characteristics of Low-Rank Coals Containing Water: An Experimental and Comparative Study
Adsorption characteristics of CO 2 –CH 4 –H 2 O-coal matrix systems are extremely important for investigating geological CO 2 -storage and enhanced coalbed methane recovery. To study the adsorption mechanism of CH 4 and CO 2 under the equilibrium water state, this study conducted high-pressure mercu...
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| Veröffentlicht in: | Natural resources research (New York, N.Y.) N.Y.), 2022-04, Vol.31 (2), p.993-1009 |
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| creator | Ma, Ruying Yao, Yanbin Wang, Meng Dai, Xuguang Li, Anhang |
| description | Adsorption characteristics of CO
2
–CH
4
–H
2
O-coal matrix systems are extremely important for investigating geological CO
2
-storage and enhanced coalbed methane recovery. To study the adsorption mechanism of CH
4
and CO
2
under the equilibrium water state, this study conducted high-pressure mercury intrusion porosimetry, low-temperature N
2
adsorption, and high-pressure methane isothermal adsorption of CH
4
and CO
2
on coal samples under equilibrium water condition. From these experimental results, the parameters including Gibbs free energy change (
ΔG
), entropy change (
ΔS
), maximum adsorption volume, selectivity coefficient (
α
) and Henry’s constant (
K
H
) were extracted to discuss the influence of moisture on the CH
4
and CO
2
adsorption behavior of low-rank coals. The results show that water in low-rank coal had an “inhibitory effect” on the adsorption of CH
4
and CO
2
. The maximum theoretical adsorption capacity of CO
2
(
a
2
) in each coal sample was greater than that of CH
4
(
a
1
), and the absolute value of the CO
2
entropy change (
ΔS
2
) was greater than that of the CH
4
entropy change (
ΔS
1
), indicating that low coal-rank coals had higher adsorption capacity of CO
2
than that of CH
4
. For the equilibrated-water isothermal adsorption results, the differential adsorption of CH
4
and CO
2
was due to differences in coal maceral compositions and the development of micro- and meso-pores in different coals. It was concluded that CO
2
enhanced coalbed methane technology has better application potential in low-rank coal reservoirs than in medium-to-high rank coal reservoirs. |
| doi_str_mv | 10.1007/s11053-022-10026-x |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_journals_2918337072</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>2918337072</sourcerecordid><originalsourceid>FETCH-LOGICAL-c319t-b8d3f61764e678cce07a4f9332f2e5bc746ddef9e24eb8527f1c4fa07516cf683</originalsourceid><addsrcrecordid>eNp9kEtLAzEUhYMoWKt_wFXAdTSPmUnGXRmqFQqCD1yGNJPU0TYZk1Tbf2_qCO7c3HvDPd-54QBwTvAlwZhfRUJwyRCmFOU3rdD2AIxIyRkStSCH-5lixAtWH4OTGN9whpgoR6BvZgVUroXNPYWTNvrQp8472LyqoHQyoYup0xF6C-f-Cz0o9w4br1YxV5dU5zq3hC8qC6_hxMHpts_I2uTVarD16z47pe7TwMe0aXen4Mhm3Jz99jF4vpk-NTM0v7-9ayZzpBmpE1qIltmK8KowFRdaG8xVYWvGqKWmXGheVG1rbG1oYRaipNwSXViFeUkqbSvBxuBi8O2D_9iYmOSb3wSXT0paE8EYx5xmFR1UOvgYg7Gyz99XYScJlvtk5ZCszMnKn2TlNkNsgGIWu6UJf9b_UN80bHxC</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2918337072</pqid></control><display><type>article</type><title>CH4 and CO2 Adsorption Characteristics of Low-Rank Coals Containing Water: An Experimental and Comparative Study</title><source>SpringerNature Journals</source><source>ProQuest Central UK/Ireland</source><source>ProQuest Central</source><creator>Ma, Ruying ; Yao, Yanbin ; Wang, Meng ; Dai, Xuguang ; Li, Anhang</creator><creatorcontrib>Ma, Ruying ; Yao, Yanbin ; Wang, Meng ; Dai, Xuguang ; Li, Anhang</creatorcontrib><description>Adsorption characteristics of CO
2
–CH
4
–H
2
O-coal matrix systems are extremely important for investigating geological CO
2
-storage and enhanced coalbed methane recovery. To study the adsorption mechanism of CH
4
and CO
2
under the equilibrium water state, this study conducted high-pressure mercury intrusion porosimetry, low-temperature N
2
adsorption, and high-pressure methane isothermal adsorption of CH
4
and CO
2
on coal samples under equilibrium water condition. From these experimental results, the parameters including Gibbs free energy change (
ΔG
), entropy change (
ΔS
), maximum adsorption volume, selectivity coefficient (
α
) and Henry’s constant (
K
H
) were extracted to discuss the influence of moisture on the CH
4
and CO
2
adsorption behavior of low-rank coals. The results show that water in low-rank coal had an “inhibitory effect” on the adsorption of CH
4
and CO
2
. The maximum theoretical adsorption capacity of CO
2
(
a
2
) in each coal sample was greater than that of CH
4
(
a
1
), and the absolute value of the CO
2
entropy change (
ΔS
2
) was greater than that of the CH
4
entropy change (
ΔS
1
), indicating that low coal-rank coals had higher adsorption capacity of CO
2
than that of CH
4
. For the equilibrated-water isothermal adsorption results, the differential adsorption of CH
4
and CO
2
was due to differences in coal maceral compositions and the development of micro- and meso-pores in different coals. It was concluded that CO
2
enhanced coalbed methane technology has better application potential in low-rank coal reservoirs than in medium-to-high rank coal reservoirs.</description><identifier>ISSN: 1520-7439</identifier><identifier>EISSN: 1573-8981</identifier><identifier>DOI: 10.1007/s11053-022-10026-x</identifier><language>eng</language><publisher>New York: Springer US</publisher><subject>Adsorption ; Carbon dioxide ; Chemistry and Earth Sciences ; Coal ; Coalbed methane ; Comparative studies ; Computer Science ; Earth and Environmental Science ; Earth Sciences ; Entropy ; Fossil Fuels (incl. Carbon Capture) ; Free energy ; Geography ; Gibbs free energy ; High pressure ; Low temperature ; Mathematical Modeling and Industrial Mathematics ; Mercury ; Methane ; Mineral Resources ; Original Paper ; Physics ; Porosity ; Reservoirs ; Statistics for Engineering ; Sustainable Development</subject><ispartof>Natural resources research (New York, N.Y.), 2022-04, Vol.31 (2), p.993-1009</ispartof><rights>International Association for Mathematical Geosciences 2022</rights><rights>International Association for Mathematical Geosciences 2022.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c319t-b8d3f61764e678cce07a4f9332f2e5bc746ddef9e24eb8527f1c4fa07516cf683</citedby><cites>FETCH-LOGICAL-c319t-b8d3f61764e678cce07a4f9332f2e5bc746ddef9e24eb8527f1c4fa07516cf683</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s11053-022-10026-x$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://www.proquest.com/docview/2918337072?pq-origsite=primo$$EHTML$$P50$$Gproquest$$H</linktohtml><link.rule.ids>315,781,785,21392,27928,27929,33748,41492,42561,43809,51323,64389,64393,72473</link.rule.ids></links><search><creatorcontrib>Ma, Ruying</creatorcontrib><creatorcontrib>Yao, Yanbin</creatorcontrib><creatorcontrib>Wang, Meng</creatorcontrib><creatorcontrib>Dai, Xuguang</creatorcontrib><creatorcontrib>Li, Anhang</creatorcontrib><title>CH4 and CO2 Adsorption Characteristics of Low-Rank Coals Containing Water: An Experimental and Comparative Study</title><title>Natural resources research (New York, N.Y.)</title><addtitle>Nat Resour Res</addtitle><description>Adsorption characteristics of CO
2
–CH
4
–H
2
O-coal matrix systems are extremely important for investigating geological CO
2
-storage and enhanced coalbed methane recovery. To study the adsorption mechanism of CH
4
and CO
2
under the equilibrium water state, this study conducted high-pressure mercury intrusion porosimetry, low-temperature N
2
adsorption, and high-pressure methane isothermal adsorption of CH
4
and CO
2
on coal samples under equilibrium water condition. From these experimental results, the parameters including Gibbs free energy change (
ΔG
), entropy change (
ΔS
), maximum adsorption volume, selectivity coefficient (
α
) and Henry’s constant (
K
H
) were extracted to discuss the influence of moisture on the CH
4
and CO
2
adsorption behavior of low-rank coals. The results show that water in low-rank coal had an “inhibitory effect” on the adsorption of CH
4
and CO
2
. The maximum theoretical adsorption capacity of CO
2
(
a
2
) in each coal sample was greater than that of CH
4
(
a
1
), and the absolute value of the CO
2
entropy change (
ΔS
2
) was greater than that of the CH
4
entropy change (
ΔS
1
), indicating that low coal-rank coals had higher adsorption capacity of CO
2
than that of CH
4
. For the equilibrated-water isothermal adsorption results, the differential adsorption of CH
4
and CO
2
was due to differences in coal maceral compositions and the development of micro- and meso-pores in different coals. It was concluded that CO
2
enhanced coalbed methane technology has better application potential in low-rank coal reservoirs than in medium-to-high rank coal reservoirs.</description><subject>Adsorption</subject><subject>Carbon dioxide</subject><subject>Chemistry and Earth Sciences</subject><subject>Coal</subject><subject>Coalbed methane</subject><subject>Comparative studies</subject><subject>Computer Science</subject><subject>Earth and Environmental Science</subject><subject>Earth Sciences</subject><subject>Entropy</subject><subject>Fossil Fuels (incl. Carbon Capture)</subject><subject>Free energy</subject><subject>Geography</subject><subject>Gibbs free energy</subject><subject>High pressure</subject><subject>Low temperature</subject><subject>Mathematical Modeling and Industrial Mathematics</subject><subject>Mercury</subject><subject>Methane</subject><subject>Mineral Resources</subject><subject>Original Paper</subject><subject>Physics</subject><subject>Porosity</subject><subject>Reservoirs</subject><subject>Statistics for Engineering</subject><subject>Sustainable Development</subject><issn>1520-7439</issn><issn>1573-8981</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNp9kEtLAzEUhYMoWKt_wFXAdTSPmUnGXRmqFQqCD1yGNJPU0TYZk1Tbf2_qCO7c3HvDPd-54QBwTvAlwZhfRUJwyRCmFOU3rdD2AIxIyRkStSCH-5lixAtWH4OTGN9whpgoR6BvZgVUroXNPYWTNvrQp8472LyqoHQyoYup0xF6C-f-Cz0o9w4br1YxV5dU5zq3hC8qC6_hxMHpts_I2uTVarD16z47pe7TwMe0aXen4Mhm3Jz99jF4vpk-NTM0v7-9ayZzpBmpE1qIltmK8KowFRdaG8xVYWvGqKWmXGheVG1rbG1oYRaipNwSXViFeUkqbSvBxuBi8O2D_9iYmOSb3wSXT0paE8EYx5xmFR1UOvgYg7Gyz99XYScJlvtk5ZCszMnKn2TlNkNsgGIWu6UJf9b_UN80bHxC</recordid><startdate>20220401</startdate><enddate>20220401</enddate><creator>Ma, Ruying</creator><creator>Yao, Yanbin</creator><creator>Wang, Meng</creator><creator>Dai, Xuguang</creator><creator>Li, Anhang</creator><general>Springer US</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>AFKRA</scope><scope>ATCPS</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>BHPHI</scope><scope>BKSAR</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>GNUQQ</scope><scope>HCIFZ</scope><scope>KB.</scope><scope>PATMY</scope><scope>PCBAR</scope><scope>PDBOC</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PYCSY</scope></search><sort><creationdate>20220401</creationdate><title>CH4 and CO2 Adsorption Characteristics of Low-Rank Coals Containing Water: An Experimental and Comparative Study</title><author>Ma, Ruying ; Yao, Yanbin ; Wang, Meng ; Dai, Xuguang ; Li, Anhang</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c319t-b8d3f61764e678cce07a4f9332f2e5bc746ddef9e24eb8527f1c4fa07516cf683</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>Adsorption</topic><topic>Carbon dioxide</topic><topic>Chemistry and Earth Sciences</topic><topic>Coal</topic><topic>Coalbed methane</topic><topic>Comparative studies</topic><topic>Computer Science</topic><topic>Earth and Environmental Science</topic><topic>Earth Sciences</topic><topic>Entropy</topic><topic>Fossil Fuels (incl. Carbon Capture)</topic><topic>Free energy</topic><topic>Geography</topic><topic>Gibbs free energy</topic><topic>High pressure</topic><topic>Low temperature</topic><topic>Mathematical Modeling and Industrial Mathematics</topic><topic>Mercury</topic><topic>Methane</topic><topic>Mineral Resources</topic><topic>Original Paper</topic><topic>Physics</topic><topic>Porosity</topic><topic>Reservoirs</topic><topic>Statistics for Engineering</topic><topic>Sustainable Development</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ma, Ruying</creatorcontrib><creatorcontrib>Yao, Yanbin</creatorcontrib><creatorcontrib>Wang, Meng</creatorcontrib><creatorcontrib>Dai, Xuguang</creatorcontrib><creatorcontrib>Li, Anhang</creatorcontrib><collection>CrossRef</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central UK/Ireland</collection><collection>Agricultural & Environmental Science Collection</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>Natural Science Collection</collection><collection>Earth, Atmospheric & Aquatic Science Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Materials Science Collection</collection><collection>ProQuest Central Korea</collection><collection>ProQuest Central Student</collection><collection>SciTech Premium Collection</collection><collection>Materials Science Database</collection><collection>Environmental Science Database</collection><collection>Earth, Atmospheric & Aquatic Science Database</collection><collection>Materials Science Collection</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>Environmental Science Collection</collection><jtitle>Natural resources research (New York, N.Y.)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ma, Ruying</au><au>Yao, Yanbin</au><au>Wang, Meng</au><au>Dai, Xuguang</au><au>Li, Anhang</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>CH4 and CO2 Adsorption Characteristics of Low-Rank Coals Containing Water: An Experimental and Comparative Study</atitle><jtitle>Natural resources research (New York, N.Y.)</jtitle><stitle>Nat Resour Res</stitle><date>2022-04-01</date><risdate>2022</risdate><volume>31</volume><issue>2</issue><spage>993</spage><epage>1009</epage><pages>993-1009</pages><issn>1520-7439</issn><eissn>1573-8981</eissn><abstract>Adsorption characteristics of CO
2
–CH
4
–H
2
O-coal matrix systems are extremely important for investigating geological CO
2
-storage and enhanced coalbed methane recovery. To study the adsorption mechanism of CH
4
and CO
2
under the equilibrium water state, this study conducted high-pressure mercury intrusion porosimetry, low-temperature N
2
adsorption, and high-pressure methane isothermal adsorption of CH
4
and CO
2
on coal samples under equilibrium water condition. From these experimental results, the parameters including Gibbs free energy change (
ΔG
), entropy change (
ΔS
), maximum adsorption volume, selectivity coefficient (
α
) and Henry’s constant (
K
H
) were extracted to discuss the influence of moisture on the CH
4
and CO
2
adsorption behavior of low-rank coals. The results show that water in low-rank coal had an “inhibitory effect” on the adsorption of CH
4
and CO
2
. The maximum theoretical adsorption capacity of CO
2
(
a
2
) in each coal sample was greater than that of CH
4
(
a
1
), and the absolute value of the CO
2
entropy change (
ΔS
2
) was greater than that of the CH
4
entropy change (
ΔS
1
), indicating that low coal-rank coals had higher adsorption capacity of CO
2
than that of CH
4
. For the equilibrated-water isothermal adsorption results, the differential adsorption of CH
4
and CO
2
was due to differences in coal maceral compositions and the development of micro- and meso-pores in different coals. It was concluded that CO
2
enhanced coalbed methane technology has better application potential in low-rank coal reservoirs than in medium-to-high rank coal reservoirs.</abstract><cop>New York</cop><pub>Springer US</pub><doi>10.1007/s11053-022-10026-x</doi><tpages>17</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 1520-7439 |
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| issn | 1520-7439 1573-8981 |
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| source | SpringerNature Journals; ProQuest Central UK/Ireland; ProQuest Central |
| subjects | Adsorption Carbon dioxide Chemistry and Earth Sciences Coal Coalbed methane Comparative studies Computer Science Earth and Environmental Science Earth Sciences Entropy Fossil Fuels (incl. Carbon Capture) Free energy Geography Gibbs free energy High pressure Low temperature Mathematical Modeling and Industrial Mathematics Mercury Methane Mineral Resources Original Paper Physics Porosity Reservoirs Statistics for Engineering Sustainable Development |
| title | CH4 and CO2 Adsorption Characteristics of Low-Rank Coals Containing Water: An Experimental and Comparative Study |
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