A chelated calcium-procyanidine-attapulgite composite inhibitor for the suppression of coal oxidation
•Pioneering study on slowing down coal oxidation by chelated calcium-procyanidine-attapulgite composite inhibitor.•The radical scavenging of the inhibitor was investigated.•The mechanism of chelated composite inhibitor in slowing down coal oxidation was analyzed. In this study, the impact of chelate...
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| Veröffentlicht in: | Fuel (Guildford) 2018-04, Vol.217, p.680-688 |
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| creator | Zhong, Xiaoxing Qin, Botao Dou, Guolan Xia, Chen Wang, Feng |
| description | •Pioneering study on slowing down coal oxidation by chelated calcium-procyanidine-attapulgite composite inhibitor.•The radical scavenging of the inhibitor was investigated.•The mechanism of chelated composite inhibitor in slowing down coal oxidation was analyzed.
In this study, the impact of chelated calcium-procyanidine-attapulgite composite inhibitor on coal oxidation process is studied. The hydroxyl and superoxide anion radical scavenging activity for procyanidine-calcium chloride complexes was measured, and the result show that the complex with ligand-to-calcium ion ratio 1:5 has the highest radical clearing activity. Due to the water adsorption quality of CaCl2, the thermal analysis of samples with/without procyanidine-calcium chloride complexes indicated that the complex can slow down the coal oxidation well and the best ratio of procyanidine and CaCl2 should be determined at 1:7. Then the water retension capacity of procyanidine, CaCl2, ATP and composite inhibitors were compared, and the result indicated that ATP can improve the water retention of the composite inhibitor, so ATP as introduced into the composite inhibitor, and the optimal ratio of chelated inhibitor and ATP was determined as 1:5 by TG-DSC curves. Therefore, a chelated calcium-procyanidine-attapulgite composite inhibitor was chosen as an additive to suppress coal oxidation. The measurements of CPT, oxygen consumption during low temperature oxidation and CO emissions all demonstrated that the addition of the composite inhibitor to coal samples has an obvious suppression effect on the oxidation process. The in situ FTIR spectra of coal samples during the oxidation process show that the coal oxidation slows down due to the addition of chelated calcium-procyanidine-attapulgite composite inhibitor by eliminating free radicals and keeping the coal hydrated. |
| doi_str_mv | 10.1016/j.fuel.2017.12.072 |
| format | Article |
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In this study, the impact of chelated calcium-procyanidine-attapulgite composite inhibitor on coal oxidation process is studied. The hydroxyl and superoxide anion radical scavenging activity for procyanidine-calcium chloride complexes was measured, and the result show that the complex with ligand-to-calcium ion ratio 1:5 has the highest radical clearing activity. Due to the water adsorption quality of CaCl2, the thermal analysis of samples with/without procyanidine-calcium chloride complexes indicated that the complex can slow down the coal oxidation well and the best ratio of procyanidine and CaCl2 should be determined at 1:7. Then the water retension capacity of procyanidine, CaCl2, ATP and composite inhibitors were compared, and the result indicated that ATP can improve the water retention of the composite inhibitor, so ATP as introduced into the composite inhibitor, and the optimal ratio of chelated inhibitor and ATP was determined as 1:5 by TG-DSC curves. Therefore, a chelated calcium-procyanidine-attapulgite composite inhibitor was chosen as an additive to suppress coal oxidation. The measurements of CPT, oxygen consumption during low temperature oxidation and CO emissions all demonstrated that the addition of the composite inhibitor to coal samples has an obvious suppression effect on the oxidation process. The in situ FTIR spectra of coal samples during the oxidation process show that the coal oxidation slows down due to the addition of chelated calcium-procyanidine-attapulgite composite inhibitor by eliminating free radicals and keeping the coal hydrated.</description><identifier>ISSN: 0016-2361</identifier><identifier>EISSN: 1873-7153</identifier><identifier>DOI: 10.1016/j.fuel.2017.12.072</identifier><language>eng</language><publisher>Kidlington: Elsevier Ltd</publisher><subject>Adsorbed water ; Adsorption ; Calcium chloride ; Calcium ions ; Chelated inhibitor ; Coal ; Coal oxidation ; Coordination compounds ; Emissions ; Free radicals ; Inhibitors ; Keep coal hydrated ; Low temperature ; Oxidation ; Oxidation process ; Oxygen consumption ; Radical scavenging activity ; Superoxide ; Thermal analysis ; Water quality</subject><ispartof>Fuel (Guildford), 2018-04, Vol.217, p.680-688</ispartof><rights>2017 Elsevier Ltd</rights><rights>Copyright Elsevier BV Apr 1, 2018</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c365t-35288d3946b03ce198aa6c5f0e823d3173f60c964474d9acc8a8128873b663ba3</citedby><cites>FETCH-LOGICAL-c365t-35288d3946b03ce198aa6c5f0e823d3173f60c964474d9acc8a8128873b663ba3</cites><orcidid>0000-0002-5195-0095</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0016236117316459$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65534</link.rule.ids></links><search><creatorcontrib>Zhong, Xiaoxing</creatorcontrib><creatorcontrib>Qin, Botao</creatorcontrib><creatorcontrib>Dou, Guolan</creatorcontrib><creatorcontrib>Xia, Chen</creatorcontrib><creatorcontrib>Wang, Feng</creatorcontrib><title>A chelated calcium-procyanidine-attapulgite composite inhibitor for the suppression of coal oxidation</title><title>Fuel (Guildford)</title><description>•Pioneering study on slowing down coal oxidation by chelated calcium-procyanidine-attapulgite composite inhibitor.•The radical scavenging of the inhibitor was investigated.•The mechanism of chelated composite inhibitor in slowing down coal oxidation was analyzed.
In this study, the impact of chelated calcium-procyanidine-attapulgite composite inhibitor on coal oxidation process is studied. The hydroxyl and superoxide anion radical scavenging activity for procyanidine-calcium chloride complexes was measured, and the result show that the complex with ligand-to-calcium ion ratio 1:5 has the highest radical clearing activity. Due to the water adsorption quality of CaCl2, the thermal analysis of samples with/without procyanidine-calcium chloride complexes indicated that the complex can slow down the coal oxidation well and the best ratio of procyanidine and CaCl2 should be determined at 1:7. Then the water retension capacity of procyanidine, CaCl2, ATP and composite inhibitors were compared, and the result indicated that ATP can improve the water retention of the composite inhibitor, so ATP as introduced into the composite inhibitor, and the optimal ratio of chelated inhibitor and ATP was determined as 1:5 by TG-DSC curves. Therefore, a chelated calcium-procyanidine-attapulgite composite inhibitor was chosen as an additive to suppress coal oxidation. The measurements of CPT, oxygen consumption during low temperature oxidation and CO emissions all demonstrated that the addition of the composite inhibitor to coal samples has an obvious suppression effect on the oxidation process. The in situ FTIR spectra of coal samples during the oxidation process show that the coal oxidation slows down due to the addition of chelated calcium-procyanidine-attapulgite composite inhibitor by eliminating free radicals and keeping the coal hydrated.</description><subject>Adsorbed water</subject><subject>Adsorption</subject><subject>Calcium chloride</subject><subject>Calcium ions</subject><subject>Chelated inhibitor</subject><subject>Coal</subject><subject>Coal oxidation</subject><subject>Coordination compounds</subject><subject>Emissions</subject><subject>Free radicals</subject><subject>Inhibitors</subject><subject>Keep coal hydrated</subject><subject>Low temperature</subject><subject>Oxidation</subject><subject>Oxidation process</subject><subject>Oxygen consumption</subject><subject>Radical scavenging activity</subject><subject>Superoxide</subject><subject>Thermal analysis</subject><subject>Water quality</subject><issn>0016-2361</issn><issn>1873-7153</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><recordid>eNp9kE1LxDAQhoMouK7-AU8Fz635aJMUvCyLX7DgRc8hTaduSrepSSruvzdlPXsYZhjeZz5ehG4JLggm_L4vuhmGgmIiCkILLOgZWhEpWC5Ixc7RCidVThknl-gqhB5jLGRVrhBsMrOHQUdoM6MHY-dDPnlnjnq0rR0h1zHqaR4-bYTMuMPkwlLZcW8bG53PuhRxD1mYp8lDCNaNmeuSVA-Z-7GtjqlzjS46PQS4-ctr9PH0-L59yXdvz6_bzS43jFcxZxWVsmV1yRvMDJBaas1N1WGQlLWMCNZxbGpelqJsa22M1JIkRLCGc9ZotkZ3p7npha8ZQlS9m_2YViqaPBFcEiySip5UxrsQPHRq8vag_VERrBY7Va8WO9VipyJUJTRBDycI0v3fFrwKxsJooLUeTFSts__hv0l9f14</recordid><startdate>20180401</startdate><enddate>20180401</enddate><creator>Zhong, Xiaoxing</creator><creator>Qin, Botao</creator><creator>Dou, Guolan</creator><creator>Xia, Chen</creator><creator>Wang, Feng</creator><general>Elsevier Ltd</general><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7QF</scope><scope>7QO</scope><scope>7QQ</scope><scope>7SC</scope><scope>7SE</scope><scope>7SP</scope><scope>7SR</scope><scope>7T7</scope><scope>7TA</scope><scope>7TB</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>C1K</scope><scope>F28</scope><scope>FR3</scope><scope>H8D</scope><scope>H8G</scope><scope>JG9</scope><scope>JQ2</scope><scope>KR7</scope><scope>L7M</scope><scope>L~C</scope><scope>L~D</scope><scope>P64</scope><orcidid>https://orcid.org/0000-0002-5195-0095</orcidid></search><sort><creationdate>20180401</creationdate><title>A chelated calcium-procyanidine-attapulgite composite inhibitor for the suppression of coal oxidation</title><author>Zhong, Xiaoxing ; Qin, Botao ; Dou, Guolan ; Xia, Chen ; Wang, Feng</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c365t-35288d3946b03ce198aa6c5f0e823d3173f60c964474d9acc8a8128873b663ba3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Adsorbed water</topic><topic>Adsorption</topic><topic>Calcium chloride</topic><topic>Calcium ions</topic><topic>Chelated inhibitor</topic><topic>Coal</topic><topic>Coal oxidation</topic><topic>Coordination compounds</topic><topic>Emissions</topic><topic>Free radicals</topic><topic>Inhibitors</topic><topic>Keep coal hydrated</topic><topic>Low temperature</topic><topic>Oxidation</topic><topic>Oxidation process</topic><topic>Oxygen consumption</topic><topic>Radical scavenging activity</topic><topic>Superoxide</topic><topic>Thermal analysis</topic><topic>Water quality</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zhong, Xiaoxing</creatorcontrib><creatorcontrib>Qin, Botao</creatorcontrib><creatorcontrib>Dou, Guolan</creatorcontrib><creatorcontrib>Xia, Chen</creatorcontrib><creatorcontrib>Wang, Feng</creatorcontrib><collection>CrossRef</collection><collection>Aluminium Industry Abstracts</collection><collection>Biotechnology Research Abstracts</collection><collection>Ceramic Abstracts</collection><collection>Computer and Information Systems Abstracts</collection><collection>Corrosion Abstracts</collection><collection>Electronics & Communications Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Materials Business File</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Copper Technical Reference Library</collection><collection>Materials Research Database</collection><collection>ProQuest Computer Science Collection</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Computer and Information Systems Abstracts Academic</collection><collection>Computer and Information Systems Abstracts Professional</collection><collection>Biotechnology and BioEngineering Abstracts</collection><jtitle>Fuel (Guildford)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zhong, Xiaoxing</au><au>Qin, Botao</au><au>Dou, Guolan</au><au>Xia, Chen</au><au>Wang, Feng</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A chelated calcium-procyanidine-attapulgite composite inhibitor for the suppression of coal oxidation</atitle><jtitle>Fuel (Guildford)</jtitle><date>2018-04-01</date><risdate>2018</risdate><volume>217</volume><spage>680</spage><epage>688</epage><pages>680-688</pages><issn>0016-2361</issn><eissn>1873-7153</eissn><abstract>•Pioneering study on slowing down coal oxidation by chelated calcium-procyanidine-attapulgite composite inhibitor.•The radical scavenging of the inhibitor was investigated.•The mechanism of chelated composite inhibitor in slowing down coal oxidation was analyzed.
In this study, the impact of chelated calcium-procyanidine-attapulgite composite inhibitor on coal oxidation process is studied. The hydroxyl and superoxide anion radical scavenging activity for procyanidine-calcium chloride complexes was measured, and the result show that the complex with ligand-to-calcium ion ratio 1:5 has the highest radical clearing activity. Due to the water adsorption quality of CaCl2, the thermal analysis of samples with/without procyanidine-calcium chloride complexes indicated that the complex can slow down the coal oxidation well and the best ratio of procyanidine and CaCl2 should be determined at 1:7. Then the water retension capacity of procyanidine, CaCl2, ATP and composite inhibitors were compared, and the result indicated that ATP can improve the water retention of the composite inhibitor, so ATP as introduced into the composite inhibitor, and the optimal ratio of chelated inhibitor and ATP was determined as 1:5 by TG-DSC curves. Therefore, a chelated calcium-procyanidine-attapulgite composite inhibitor was chosen as an additive to suppress coal oxidation. The measurements of CPT, oxygen consumption during low temperature oxidation and CO emissions all demonstrated that the addition of the composite inhibitor to coal samples has an obvious suppression effect on the oxidation process. The in situ FTIR spectra of coal samples during the oxidation process show that the coal oxidation slows down due to the addition of chelated calcium-procyanidine-attapulgite composite inhibitor by eliminating free radicals and keeping the coal hydrated.</abstract><cop>Kidlington</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.fuel.2017.12.072</doi><tpages>9</tpages><orcidid>https://orcid.org/0000-0002-5195-0095</orcidid></addata></record> |
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| subjects | Adsorbed water Adsorption Calcium chloride Calcium ions Chelated inhibitor Coal Coal oxidation Coordination compounds Emissions Free radicals Inhibitors Keep coal hydrated Low temperature Oxidation Oxidation process Oxygen consumption Radical scavenging activity Superoxide Thermal analysis Water quality |
| title | A chelated calcium-procyanidine-attapulgite composite inhibitor for the suppression of coal oxidation |
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