Name: experimental study of the relationship between particle size and methane sorption capacity in shale
Uploaded: 2018-08-02T13:30:00
Description: Watch this Scientific Journal Video about Experimental Study of the Relationship Between Particle Size and Methane Sorption Capacity in Shale at JoVE.com

En masse bistand blev leveret af ingeniør bande Chen og Tao Zhang. Dette arbejde blev økonomisk støttet af den store stat forskning udvikling Program i Kina (Grant No.2016YFC0600202) og Kina Geological Survey (CGS, Grant nr. DD20160183). Vi takker anonym korrekturlæsere for deres konstruktive kommentarer, der i høj grad forbedret dette papir.

1. Prøvetilberedning
<ol><li>
Prøven karakterisering
	<ol>
<li>Måle den total organisk kulstof (TOC) med en TOC apparatur (Se Tabel af materialer) ved en temperatur på 20 ° C og en relativ luftfugtighed på 65% (per standard GB/T 19145-2003).</li>
		<li>Udføre en vitrinite reflektionsgrad måling på polerede dele af skifer ved hjælp af et fotometer mikroskop (Se Tabel af materialer).</li>
	</ol>
</li>
	<li>
Prøven rengøring og knusning Bem...

<ol>
	<li>Strapoc, D., Mastalerz, M., Schimmelmann, A., Drobniak, A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Geochemical+constraints+on+the+origin+and+volume+of+gas+in+the+New+Albany+Shale+(Devonian-Mississippian),+eastern+Illinois+Basin.">Geochemical constraints on the origin and volume of gas in the New Albany Shale (Devonian-Mississippian), eastern Illinois Basin.</a> AAPG Bulletin. 94, 1713-1740 (2010).</li><li>Loucks, R. G., Ruppel, S. 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M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Mississippian+Barnett+Shale,+Fort+Worth+basin,+north-central+Texas:+Gas-shale+play+with+multitrillion+cubic+foot+potential.">Mississippian Barnett Shale, Fort Worth basin, north-central Texas: Gas-shale play with multitrillion cubic foot potential.</a> AAPG Bulletin. 89, 155-175 (2005).</li><li>Jia, C. Z., Zheng, M., Zhang, Y. F. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Unconventional+hydrocarbon+resources+in+China+and+the+prospect+of+explora+exploration+and+development.">Unconventional hydrocarbon resources in China and the prospect of explora exploration and development.</a> Petroleum Exploration and Development. 39 (2), 129-136 (2012).</li><li>Hou, Y. G., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Effect+of+pore+structure+on+methane+sorption+potential+of+shales.">Effect of pore structure on methane sorption potential of shales.</a> Petroleum Exploration and Development. 41 (2), 272-281 (2014).</li><li>Chalmers, G. R., Bustin, R. M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+organic+matter+distribution+and+methane+capacity+of+the+lower+cretaceous+strata+of+northeastern+British+Columbia,+Canada.">The organic matter distribution and methane capacity of the lower cretaceous strata of northeastern British Columbia, Canada.</a> International Journal of Coal Geology. 70 (1-3), 223-239 (2007).</li><li>Kang, Y. L., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Effect+of+particle+size+on+methane+sorption+capacity+of+shales.">Effect of particle size on methane sorption capacity of shales.</a> Natural Gas Geoscience. 28 (2), 272-279 (2017).</li><li>Wang, R., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Adsorption+influence+factors+and+characteristics+of+adsorption+isotherm+for+shale+to+methane.">Adsorption influence factors and characteristics of adsorption isotherm for shale to methane.</a> Natural Gas Geoscience. 26 (3), 580-591 (2015).</li><li>Ruppel, T. C. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Adsorption+of+methane+on+dry+coal+at+elevated+pressure.">Adsorption of methane on dry coal at elevated pressure.</a> Fuel. 53, 152-162 (1974).</li><li>Zhang, G. D., Han, Y. K., He, Z. P., Gao, X. Y., Chen, H. Z. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+sample+particle+size+on+the+adsorption+capacity+of+the+experimental+study+on+the+effect+of+shale+gas.">The sample particle size on the adsorption capacity of the experimental study on the effect of shale gas.</a> Exploration and Development. 6, 110-116 (2016).</li><li>Ross, D. J., Bustin, R. 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X., Qin, Y. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Isotherm+adsorption+of+coal+samples+with+different+grain+size.">Isotherm adsorption of coal samples with different grain size.</a> Journal of China University of Mining and Technology. 34, 427-432 (2005).</li><li>Wang, Z. X., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=A+discussion+on+the+structural+deformation+and+oil/gas+traps+on+the+western+side+of+the+Xuefeng+Mountain.">A discussion on the structural deformation and oil/gas traps on the western side of the Xuefeng Mountain.</a> Geological Bulletin of China. 31 (11), 1812-1825 (2012).</li><li>Xu, Z. Y., Liang, X., Wang, X. W. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Controlling+factors+for+shale+gas+sweet+spots+distribution+in+the+Upper+Yangtze+region:+a+case+study+of+the+Upper+Ordovician+Wufeng+Fm-Lower+Silurian+Longmaxi+Fm,+Sichuan+Basin.">Controlling factors for shale gas sweet spots distribution in the Upper Yangtze region: a case study of the Upper Ordovician Wufeng Fm-Lower Silurian Longmaxi Fm, Sichuan Basin.</a> Natural Gas Industry. 36 (9), 35-43 (2016).</li><li>Chalmers, G. L., Bustin, R. M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Lower+cretaceous+gas+shales+in+northeastern+British+Columbia,+Part+I:+geological+controls+on+methane+sorption+capacity.">Lower cretaceous gas shales in northeastern British Columbia, Part I: geological controls on methane sorption capacity.</a> Bulletin of Canadian Petroleum Geology. 56 (1), 1-21 (2008).</li><li>Tan, J. Q., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Shale+gas+potential+of+the+major+marine+shale+formations+in+the+Upper+Yangtze+Platform,+South+China,+Part+II:+methane+sorption+capacity.">Shale gas potential of the major marine shale formations in the Upper Yangtze Platform, South China, Part II: methane sorption capacity.</a> Fuel. 129 (4), 204-218 (2014).</li><li>Zhao, Y. J., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Study+of+impact+factors+on+shale+gas+adsorption+and+desorption.">Study of impact factors on shale gas adsorption and desorption.</a> Natural Gas Geoscience. 25 (6), 940-946 (2014).</li><li>Xue, H. Q., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Adsorption+capability+and+aperture+distribution+characteristics+of+shales:+taking+the+Longmaxi+Formation+shale+of+Sichuan+Basin+as+an+example.">Adsorption capability and aperture distribution characteristics of shales: taking the Longmaxi Formation shale of Sichuan Basin as an example.</a> Acta Petrolei Sinca. 34 (5), 826-832 (2013).</li><li>. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=U.S.+Shale+Gas:+An+Unconventional+Resource.+Unconventional+Challenges.">U.S. Shale Gas: An Unconventional Resource. Unconventional Challenges.</a> Halliburton Energy Services. , (2008).</li><li>Zhang, L. H., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Adsorption+capacity+and+controlling+factors+of+the+Lower+Silurian+Longmaxi+Shale+Play+in+southern+Sichuan+Basin.">Adsorption capacity and controlling factors of the Lower Silurian Longmaxi Shale Play in southern Sichuan Basin.</a> Natural Gas Industry. 34 (12), 63-69 (2014).</li><li>Gasparik, M., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Geological+controls+on+the+methane+storage+capacity+in+organic-rich+shales.">Geological controls on the methane storage capacity in organic-rich shales.</a> International Journal of Coal Geology. 123 (2), 34-51 (2014).</li><li>. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Technically+Recoverable+Shale+Oil+and+Shale+Gas+Resources:+An+Assessment+of+137+Shale+Formations+in+41+Countries+Outside+the+United+States.">Technically Recoverable Shale Oil and Shale Gas Resources: An Assessment of 137 Shale Formations in 41 Countries Outside the United States.</a> U.S. Energy Information Administration. , (2013).</li><li>Gao, H. Q., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Isotherm+adsorption+characteristic+of+marine+and+continental+shale+and+its+controlling+factors.">Isotherm adsorption characteristic of marine and continental shale and its controlling factors.</a> Natural Gas Geoscience. 24 (6), 1290-1297 (2013).</li><li>Josh, M., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Laboratory+characterization+of+shale+properties.">Laboratory characterization of shale properties.</a> Journal of Petroleum Science and Engineering. 88-89 (2), 107-124 (2012).</li><li>Li, W. G., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=A+new+model+for+shale+adsorption+gas+amount+under+a+certain+geological+condition+of+temperature+and+pressure.">A new model for shale adsorption gas amount under a certain geological condition of temperature and pressure.</a> Natural Gas Geoscience. 23 (4), 791-796 (2012).</li><li>Robens, E., Keller, J. U., Massen, C. H., Staudt, R. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Sources+of+error+in+sorption+and+density+measurements.">Sources of error in sorption and density measurements.</a> Journal of Thermal Analysis and Calorimetry. 55, 383-387 (1999).</li><li>Keller, J. U., Stuart, R. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=.">.</a> Gas Adsorption Equilibria: Experimental Methods and Adsorptive Isotherms. , (2005).</li><li>Ji, W. M., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Geological+controls+and+estimation+algorithms+of+lacustrine+shale+gas+adsorption+capacity:+A+case+study+of+the+Triassic+strata+in+the+southeastern+Ordos+Basin,+China.">Geological controls and estimation algorithms of lacustrine shale gas adsorption capacity: A case study of the Triassic strata in the southeastern Ordos Basin, China.</a> International Journal of Coal Geology. 134-135 (1), 61-73 (2014).</li><li>Liang, M. 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Materialer i dette eksperiment er vist i Tabel af materialer. Før prøven pool er fjernet, skal det bekræftes, at temperatur og tryk i stikprøven pool er ved normalt tryk og normal temperatur; ellers er der fare for skade. Hvis temperaturen er for høj, vente på temperatur drop og derefter removethe prøve pool. Hvis trykket er for højt eller for lavt, manuelt indstille lufttrykket på software og bruge en inaktiv gas13,14,<sup cl...

Skifer er en ler rock med et tyndt lag af strøelse struktur, som fungerer som både en skifer gas kilde rock og et reservoir. Skifer har en stærk anisotropy bestående af nano - og micron-skala porer, og graptolite fossiler er almindeligt anerkendte1,2,3.
Skifergas er kommercielt udnyttet i Yangtze plade, det sydlige Kina. Som en utraditionel gassystem, der fungerer som både en kilde rock og et reservoir for metan, er skifergas afledt af det organiske stof i skifer gennem biogene og/eller termogeniske processer4,5. Naturgas butikker i reservoirer er i en af tre former: gratis gas i porerne og frakturer, adsorberet gas på overfladen af organisk materiale eller uorganiske mineraler, og opløst gas i bitumen og vand6,7. Tidligere undersøgelser tyder på, at adsorberet gas tegner sig for 20-85% af den samlede gas i skifer formationer6. Derfor forskning på adsorption kapacitet af skifer og dets kontrollerende faktorer er væsentlige for udforskning og udvikling af skifer gas ressource.
Metan adsorption evne til skifer har været bredt anerkendt som væsentligt varierende temperatur, tryk, fugtighed, modenhed, mineralske sammensætning, organisk materiale og specifikke overfladeareal1,4,5 ,6,7; og tidligere undersøgelser har bekræftet en større og tydeligere korrelation mellem eksterne faktorer som temperatur, tryk og fugtighed og metan adsorption.
Dog undersøgelser om sammenhængen mellem iboende faktorer partikelstørrelse og metan adsorption er kontroversielle. Kang og Ji tyder på, at metan adsorption kapacitet af de samme skifer prøver stiger med et fald i partikel størrelse8,14, mens Rupple og Zhang mener relevans mellem partikelstørrelse og adsorptionen er begrænset baseret på isotermisk adsorption kurver9,10,11. Derudover uden standarder for en skifer gas adsorption evaluering protokol anvende laboratorier i Kina typisk protokollerne kul adsorption evaluering for at vurdere skifer gas adsorption. For at afklare forholdet mellem partikelstørrelse og adsorption, samt undersøge en prospektiv udforskning zone, opnåede vi skifer prøver fra de tykke marine skifer aflejringer af Wuling Sag i den øverste Yangtze plade. En gravimetrisk sorption analyzer blev anvendt til at gennemføre isotermiske adsorption experimentand opnå forholdet mellem partikelstørrelse og adsorption.
De volumetriske og gravimetrisk metoder er de vigtigste metoder til at teste isotermisk adsorption af skifer. Volumen er den vigtigste parameter i den volumetriske metode, som er let påvirket af temperatur og tryk12,13,14. På grund af usikkerhed i fejlanalyse fører den kumulative formering i direkte målinger ved hjælp af den volumetriske metode til beregning af adsorption mængder til en stor fejl i måleresultaterne, som bevirker en unormal adsorption isoterm14 ,15. Sammenlignet med den volumetriske metode, den gravimetriske metode kræver færre parametre og resulterer i mindre fejl: fordi massen er bevaret, vægt og masse af den gravimetriske metode påvirkes ikke af temperatur og tryk12. Det anses for en mere videnskabelig og præcis metode til måling af theadsorption mængden af adsorption på nuværende tidspunkt.
En gravimetrisk sorption analyzer er brugt i dette eksperiment, som har en maksimal test pres på 70 MPa (700 bar) og ved 150 ° C. Temperatur og tryk, der genereres af ældre apparatur er for lave toaccurately simulering af temperatur og tryk af den dybe underjordiske dannelse. Nøglen til ved hjælp af en sorption røganalyseringsapparater er ved at nå den magnetiske suspension balance for præcist vejer prøvemateriale, med en nøjagtighed på 10 µg. Apparatet vedtager en cirkulerende olie bad varme tilstand og temperaturområdet kan styres i lang tid inden for 0,2 ° C. Nøjagtigheden af et gammelt apparat er lav, og fejlen ville således være større end der opnås med nyere instrumenter. De eksperimentelle funktioner udføres med software, der leveres af apparatet. Operativsystemet vil blive opdateret regelmæssigt for at sikre, at analysen er tæt på de faktiske underground betingelser12.
En magnetisk suspension balance (MSB) er anvendt i den gravimetriske metode for at teste metan isotermisk adsorption af skifer uden direkte kontakt mellem prøven og udstyret, i normal temperatur og tryk. Prøven placeres i den måling pool, hvor vægten af prøven kan overføres til balance gennem en ikke-kontakt suspension kobling mekanisme12,13. Under balancen er der en suspenderet magnet, kontrolleret af et specialdesignet controller, der tillader gratis suspension af permanent magnet nedenfor. Permanent magnet forbinder positionssensor og prøve container med kobling ramme. Funktionen af kobling rammen er til par eller afkoble prøvebeholder til permanent magnet suspension stang14,15,16.
Vores målte prøver er sorte økologiske rige skifer deponeret i marine facies af lang Maxi dannelse, lavere Silur i Daozhen, Guizhou provinsen. Området er i Wuling Sag, øvre Yangtze plade, som er omkranset af Sichuan bassinet mod nordvest og Xuefeng Mountain tektoniske zone til den sydvestlige17. Wuling Sag er en strukturel overførsel og overgangszone mellem Sichuan Basin og Xuefeng Mountain tektoniske zone, som modtog shallow-dybe hav hylde indskud, og marine sort skifer blev bredt udviklet under tidlig Silur; sag var så stærkt overlejret af tektoniske begivenheder som Indo-Kina bevægelse, Yanshan bevægelse og Himalaya-bevægelsen, som dannede flertrins folder, fejl og unconformities18. Den marine sort skifer i Wuling Sag har været betydeligt påvirket af de komplekse geologiske forhold, som dannede skifer gasreserver. Som en strukturel overførsel zone er sag sweet spot for skifergas, som er karakteriseret ved en svagere deformation, bedre skifer gas generation og bevarelse betingelser og en bedre naturlige fraktur matchende fælder19.
Højtryks sorption målinger er foretaget ud fra en standardiseret procedure med vejledning af isotermisk adsorption apparater protokol, som er blevet grundigt udarbejdet på i flere publikationer10,11 , 12 , 13 , 14 , 15 , 16. isotermisk adsorption eksperimenter blev afsluttet i nøglen laboratorium af skifer olie og Gas efterforskning og vurdering af den kinesiske Academy Geosciences. En gravimetrisk måling udført med en magnetisk suspension balance (MSB) er udført i fire trin: en tom måling, forbehandling, en opdrift måling og en adsorption og desorption måling (figur 1, figur 2).

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	</colgroup>
	<tbody>
		<tr height="21">
			<td height="21" style="height:21px;width:412px;">XRF D8 DISCOVER X-Ray diffractometer</td>
			<td style="width:427px;">Brook,Germany</td>
			<td style="width:140px;">204458</td>
			<td style="width:608px;">For mineralogy X-ray diffraction</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">EBSD three element integration system with spectrum&#160;</td>
			<td>EDAX,USA</td>
			<td>Trident XM4</td>
			<td>For nanoscale imaging (SEM)</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Mercury injection capillary pressure (MICP)</td>
			<td>USA micromeritics Instrument company</td>
			<td>AutoPore IV 9520</td>
			<td>For the immersion method to measure macropores(Porosity)</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Nitrogen gas adsorption at low temperature</td>
			<td>USA micromeritics Instrument company</td>
			<td>ASAP2460/2020</td>
			<td>For the low pressure nitrogen gas adsorption to measure mesopores and micropores(BET)</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Finnigan MAT-252 mass spectrometer</td>
			<td>ThermoFinnigan,USA</td>
			<td>TRQ/Y2008-004</td>
			<td>For C isotope</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">LECO CS-230 analyzer&#160;</td>
			<td>Research Institute of Petroleum Exploration and Development</td>
			<td>617-100-800</td>
			<td>TOC apparatus</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">3Y-Leica MPV-SP photometer microphotometric system&#160;</td>
			<td>Leica,Germany</td>
			<td>M090063016</td>
			<td>Ro apparatus</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Magnetic Suspension Balance Isothermal adsorption analyzer</td>
			<td>Rubotherm,Germany</td>
			<td>2015-1974CHN</td>
			<td>For methane adsorption tests</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Sieve(20/40/60/80/100/120mesh)</td>
			<td>Sinopharm Chemical Reagent Beijing Co.Ltd</td>
			<td>200*50GB6003.102012</td>
			<td>Used to screen samples</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Absorbent cotton, hammer, tweezers and acetaldehyde</td>
			<td>Sinopharm Chemical Reagent Beijing Co.Ltd</td>
			<td>standard</td>
			<td>Used to clean materials</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Residual gas tight grinder</td>
			<td>Nantong Huaxing Petroleum Instrument Co., Ltd</td>
			<td>TY2013000237</td>
			<td>Sample smasher</td>
		</tr>
	</tbody>
</table>

experimental study of the relationship between particle size and methane sorption capacity in shale

Mængden af adsorberet skifergas er en afgørende parameter bruges i rødler gas resource evaluering og måludvælgelser område, og det er også en vigtig standard for at vurdere værdien udvinding af skifergas. I øjeblikket er undersøgelser om sammenhængen mellem partikel størrelse og metan adsorption kontroversielle. I denne undersøgelse, der en isotermisk adsorption apparater, gravimetrisk sorption analyzer, bruges til at teste forskellige partikelstørrelser adsorption kapacitet i skifer til at bestemme forholdet mellem partikelstørrelsen og adsorption kapacitet af skifer. Thegravimetric metode kræver færre parametre og skaber bedre resultater for nøjagtighed og konsistens end metoder som den volumetriske metode. Gravimetriske målinger udføres i fire trin: en tom måling, forbehandling, en opdrift måling og adsorption og desorption målinger. Gravimetrisk måling er i øjeblikket anses for at være en mere videnskabelig og præcis metode til måling af mængden af adsorption; men det er tidskrævende og kræver en streng måleteknik. En magnetisk Suspension Balance (MSB) er nøglen til at verificere nøjagtigheden og konsistensen af denne metode. Vores resultater viser, at adsorption kapacitet og partikelstørrelse er korreleret, men ikke en lineær sammenhæng, og adsorptions i partikler sigtes i 40-60 og 60-80 masker tendens til at være større. Vi foreslår, at den maksimale adsorption svarende til partikelstørrelsen er ca 250 µm (60 mesh) i skifer gas briste.

<img alt="Figure 1" class="xfigimg" src="/files/ftp_upload/57705/57705fig1.jpg"> Figur 1 : Eksperimenterende set-up for gravimetrisk gas adsorption ved høje temperaturer og tryk. Denne figur viser set-up for isotermisk adsorption eksperiment: (en) olien bad opvarmning enhed for den flydende badekar; (b) den elektriske opvarmning enhed til elektrisk opvarmning; (c) den magnetiske suspensio...

Watch this Scientific Journal Video about Experimental Study of the Relationship Between Particle Size and Methane Sorption Capacity in Shale at JoVE.com

Experimental Study of the Relationship Between Particle Size and Methane Sorption Capacity in Shale

Eksperimentel undersøgelse af forholdet mellem partikelstørrelse og metan Sorption kapacitet i skifer

Vi bruger en isotermisk adsorption apparater, gravimetrisk sorption analyzer, for at teste adsorption kapacitet af forskellige partikelstørrelser af skifer, for at finde ud af forholdet mellem partikelstørrelse og adsorption kapacitet af skifer.

The amount of adsorbed shale gas is a key parameter used in shale gas resource evaluation and target area selection, and it is also an important standard ...

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