煤溶胀前后溶解度参数变化研究?
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摘要
选择6种性质不同的溶剂作为溶胀剂,对烟煤进行了溶胀预处理。对溶胀前后煤样进行了形貌分析、红外分析及溶解度参数测定,并考察了直接加氢液化效果。结果表明,溶剂溶胀预处理未破坏煤大分子结构,而煤的微观形貌变得疏松。所选6种溶剂中,N,N-二甲基甲酰胺(DMF)与煤二者之间的溶解度参数差值最小,DMF对煤溶胀效果也最好,溶胀度达1.71。同时,6种溶胀煤中,经DMF溶胀煤样(C_(DMF))的溶解度参数值最低,直接液化性能最好。相比于原煤(C_R),C_(DMF)的溶解度参数降低了2.73%,气产率降低了89.71%,液产率和转化率分别提高了27.48%和5.35%。
Six different solvents were used as swelling agents to pretreat bituminous coal. The coal before and after treatments was characterized by SEM, FTIR and solubility measurements, and liquefaction experiments were also performed on raw coal(C_R) and six swollen coals. The results show that swelling can expand coal structure, although FTIR results indicate that coal microstructure is not broken. The solubility difference between N,N-dimethylformamide(DMF) and C_R is the smallest for the six solvents used, and DMF has the best swelling effect with swelling degree of 1.71. In addition, the solubility of C_(DMF) is the lowest among the six swollen coals with the best direct liquefaction performance. Compared with C_R, the solubility of CDMF decreases by 2.73%, gas yield decreases by 89.71%, and the liquid yield and conversion rate increase by 27.48% and5.35%, respectively.
Six different solvents were used as swelling agents to pretreat bituminous coal. The coal before and after treatments was characterized by SEM, FTIR and solubility measurements, and liquefaction experiments were also performed on raw coal(C_R) and six swollen coals. The results show that swelling can expand coal structure, although FTIR results indicate that coal microstructure is not broken. The solubility difference between N,N-dimethylformamide(DMF) and C_R is the smallest for the six solvents used, and DMF has the best swelling effect with swelling degree of 1.71. In addition, the solubility of C_(DMF) is the lowest among the six swollen coals with the best direct liquefaction performance. Compared with C_R, the solubility of CDMF decreases by 2.73%, gas yield decreases by 89.71%, and the liquid yield and conversion rate increase by 27.48% and5.35%, respectively.
引文
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[27]MUTELET F,BUTET V,JAUBERT J N.Application of inverse gas chromatography and regular solution theory for characterization of ionic liquids[J].Industrial&Engineering Chemistry Research,2005,44(11):4120-4127.
[28]KAYAI S,LTER Z,ENOL D.Thermodynamic interactions and characterisation of poly[(glycidyl methacrylate-co-methyl,ethyl,butyl)methacrylate]by inverse gas chromatography[J].Polymer,2002,43(24):6455-6463.
[29]NIEDERER B,LE A,CANTERGIANI E.Thermodynamic study of two different chewing-gum bases by inverse gas chromatography[J].Journal of Chromatography A,2003,996(1-2):189-194.
[30]BARTON A F M.CRC handbook of solubility parameters and other cohesion parameters[M].2nd ed.Boca Raton:CRC Press,1991:123-138.
[31]OVEJERO G,PéREZP,ROMERO M D,et al.SEBS triblock copolymer-solvent interaction parameters from inverse gas chromatography measurements[J].European Polymer Journal,2009,45(2):590-594.
[32]YAZICI O,SAKAR D,CANKURTARAN O,et al.Thermodynamical study of poly(n-hexyl methacrylate)with some solvents by inverse gas chromatography[J].Journal of Applied Polymer Science,2011,122(3):1815-1822.
[33]BOUTBOUL A,LENFANT F,GIAMPAOLI P,et al.Use of inverse gas chromatography to determine thermodynamic parameters of aroma-starch interactions[J].Journal of Chromatography A,2002,969(1-2):9-16.
[34]姚允斌,解涛,高英敏.物理化学手册[M].上海:上海科学技术出版社,1985.YAO Y B,XIE T,GAO Y M.Handbook of physical chemistry[M].Shanghai:Shanghai Science and Technology Press,1985.
[35]张辛亥,罗振敏,张海珩.煤自燃性的红外光谱研究[J].西安科技大学学报.2007,27(2):171-175.ZHANG X H,LUO Z M,ZHANG H Z.Self-ignition propensity of coal with FTIR spectra[J].Journal of Xi'an University of Science and Technology.2007,27(2):171-175.
[36]YOO B,AFZAL W,PRAUSNITZ J M.Solubility parameters for nine ionic liquids[J].Industrial&Engineering Chemistry Research,2012,51(29):9913-9917.
[37]VAN KREVELEN D W.Chemical structure and proper-ties of coal XXVII--coal constitution and solvent extraction[J].Fuel,1966,45:229-242.
[38]WEINBERG V L,YEN T F.‘Solubility parameters’in coal and coal liquefaction products[J].Fuel,1980,59(5):287-289.
[39]PAINTER P C,GRAF J,COLEMAN M M.Coal solubility and swelling.1.Solubility parameters for coal and the Flory.chi.parameter[J].Energy&Fuels,1990,4(4):379-384.
[40]HANSEN C M.Hansen solubility parameters:A user's handbook[M].2nd ed.New York:Springer New York Press,2007.
[41]廖静,马凤云,孙志强,等.空化洗油机械溶胀对新疆准东西沟煤液化性能的影响[J].煤炭学报,2016,41(5):1279-1286.LIAO J,MA F Y,SUN Z Q,et al.Effect of swelling mechanically with cavitated creosote oil on liquefaction properties of Xigou coal from Xinjiang Zhundong[J].Journal of China Coal Society,2016,41(5):1279-1286.
[42]郭靖,马凤云,玛·伊·拜克诺夫,等.溶胀对五彩湾煤低压直接液化性能的影响[J].煤炭学报,2010.35(7):1182-1187.GUO J,MA F Y,БайкеновМИ,et al.Effect of solvent swelling of Wucaiwan coal on hydro-liquefaction properties at lower pressure[J].Journal of China Coal Society,2010.35(7):1182-1187.
[43]SHUI H F,LIU J L,WANG Z C,et al.Effect of pre-swelling of coal at mild temperatures on its hydro-liquefaction properties[J].Fuel Processing Technology,2009,90(7):1047-1051.
[2]SHUI H F,WANG Z C,CAO M X.Effect of pre-swelling of coal on its solvent extraction and liquefaction properties[J].Fuel,2008,87(13):2908-2913.
[3]SHUI H F,CAI Z Y,XU C B.Recent advances in direct coal liquefaction[J].Energies,2010,3(2):155-170.
[4]OTAKE Y,SUUBERG E M.Temperature dependence of solvent swelling and diffusion processes in coals[J].Energy&Fuels,1997,11(6):1155-1164.
[5]MATHEWS J P,CLIFFORD C E B,PAINTER P C.Interactions of Illinois No.6 Bituminous coal with solvents:A review of solvent swelling and extraction literature[J].Energy&Fuels,2015,29(3):1279-1294.
[6]ZUBKOVA V.Chromatographic methods and techniques used in studies of coals,their progenitors and coal-derived materials[J].Analytical and Bioanalytical Chemistry,2011,399(9):3193-3209.
[7]RINCON J M,CRUZ S.Influence of preswelling on liquefaction of coal[J].Fuel,1988,67(8):1162-1163.
[8]JOSEPH J T.Beneficial effects of preswelling on conversion and catalytic activity during coal liquefaction[J].Fuel,1991,70(3):459-464.
[9]ARTOK L,DAVIS A G,MITCHELL D,et al.Swelling pretreatment of coals for improved catalytic liquefaction[J].Fuel,1992,71(9):981-991.
[10]何芳,马凤云,刘景梅,等.空化洗油溶胀对新疆准东煤分子结构的影响[J].煤炭转化,2015,38(4):5-11.HE F,MA F Y,LIU J M,et al.Effect of cavitated creosote oil swelling on molecular strucyures of coal from Xinjiang Zhundong filed[J].Coal Conversion,2015,38(4):5-11.
[11]白金峰,王勇,胡浩权,等.溶胀对扎赉诺尔褐煤热解及液化性能的研究[J].煤炭转化,2000,23(4):50-54.BAI J F,WANG Y,HU H Q,et al.Effect of swelling pretreatment on pyrolysis and liquefaction characteristics of Zalainuer lignite[J].Coal Conversion,2000,23(4):50-54.
[12]VAN KREVELEN D W.Properties of polymers[M].New York:Elsevier New York Press,1976.
[13]TIJSSEN R,BILLIET H A H,SCHOENMAKERS P.Use of the solubility parameter for predicting selectivity and retention in chromatography[J].Journal of Chromatography A,1976,122(7):185-203.
[14]DIPAOLA-BARANYI G,GUILLET J.Estimation of polymer solubility parameters by gas chromatography[J].Macromolecules,1978,11(1):228-235.
[15]ERTAS D,KELEMEN S R,HALSEY T C.Petroleum Expulsion Part 1.Theory of Kerogen swelling in multicomponent solvents[J].Energy&Fuels,2006,20(1):295-300.
[16]PAPADOPOULOU S K,PANAYIOTOU C.Thermodynamic characterization of poly(1,1,1,3,3,3-hexafluoroisopropyl methacrylate)by inverse gas chromatography[J].Journal of Chromatography A,2012,1229(6):230-236.
[17]DENG L S,WANG Q,CHEN Y L,et al.Determination of the solubility parameter of ionic liquid 1-octyl-3-methylimidazolium hexafluorophosphate by inverse gas chromatography[J].Journal of Molecular Liquids,2013,187(11):246-251.
[18]CORDEIROA N,ORNELAS M,ASHORI A,et al.Investigation on the surface properties of chemically modified natural fibers using inverse gas chromatography[J].Carbohydrate Polymers,2012,87(4):2367-2375.
[19]KO?ODZIEJEK J,G?óWKA E,HYLA K,et al.Relationship between surface properties determined by inverse gas chromatography and ibuprofen release from hybrid materials based on fumed silica[J].International Journal of Pharmaceutics,2013,441(1):441-448.
[20]LI X P,WANG Q,LI L,et al.Determination of the thermodynamic parameters of ionic liquid 1-hexyl-3-methylimidazolium chloride by inverse gas chromatography[J].Journal of Molecular Liquids,2014,200(1):139-144.
[21]PAN X Y,CHEN Y L,DENG L S,et al.Determination of infinite dilution activity coefficients of several organic solutes in n-butylpyridinium nitrate/n-octylpyridinium nitrate by blend inverse gas chromatography[J].Journal of Chemical&Engineering Data,2017,62(10):3095-3104.
[22]潘薪羽,赵丽,马空军,等.反气相色谱法与汉森溶解度参数软件测定原煤的三维溶解度参数[J].化工学报,2017,68(12):4494-4499.PAN X Y,ZHAO L,MA K J,et al.Determination of three-dimensional solubility parameters using IGC and HSPiP[J].Journal of Chemical Industry and Engineering,2017,68(12):4494-4499.
[23]潘薪羽,赵丽,马空军,等.反气相色谱法与汉森三维溶解度参数软件测定四种咪唑基离子液体的溶解度参数[J].高校化学工程学报,2018,32(1):30-37.PAN X Y,ZHAO L,MA K J,et al.Measurement of solubility parameters of four imidazolium-base ionic liquids by IGC and HSPiP[J].Journal of Chemical Engineering of Chinese Universities,2018,32(1):30-37.
[24]BHOI S,BANERJEE T,MOHANTY K.Beneficiation of Indian coals using ionic liquids[J].Fuel Processing Technology,2016,151:1-10.
[25]MUTELET F,BUTET V,JAUBERT J N.Application of inverse gas chromatography and regular solution theory for characterization of ionic liquids[J].Industrial&Engineering Chemistry Research,2005,44(11):4120-4127.
[26]WANG J,ZHANG Z,YANG X,et al.Determination of solubility parameter for dicationic ionic liquid by inverse gas chromatography[J].Chinese Journal of Chromatography,2009,27(4):480-483.
[27]MUTELET F,BUTET V,JAUBERT J N.Application of inverse gas chromatography and regular solution theory for characterization of ionic liquids[J].Industrial&Engineering Chemistry Research,2005,44(11):4120-4127.
[28]KAYAI S,LTER Z,ENOL D.Thermodynamic interactions and characterisation of poly[(glycidyl methacrylate-co-methyl,ethyl,butyl)methacrylate]by inverse gas chromatography[J].Polymer,2002,43(24):6455-6463.
[29]NIEDERER B,LE A,CANTERGIANI E.Thermodynamic study of two different chewing-gum bases by inverse gas chromatography[J].Journal of Chromatography A,2003,996(1-2):189-194.
[30]BARTON A F M.CRC handbook of solubility parameters and other cohesion parameters[M].2nd ed.Boca Raton:CRC Press,1991:123-138.
[31]OVEJERO G,PéREZP,ROMERO M D,et al.SEBS triblock copolymer-solvent interaction parameters from inverse gas chromatography measurements[J].European Polymer Journal,2009,45(2):590-594.
[32]YAZICI O,SAKAR D,CANKURTARAN O,et al.Thermodynamical study of poly(n-hexyl methacrylate)with some solvents by inverse gas chromatography[J].Journal of Applied Polymer Science,2011,122(3):1815-1822.
[33]BOUTBOUL A,LENFANT F,GIAMPAOLI P,et al.Use of inverse gas chromatography to determine thermodynamic parameters of aroma-starch interactions[J].Journal of Chromatography A,2002,969(1-2):9-16.
[34]姚允斌,解涛,高英敏.物理化学手册[M].上海:上海科学技术出版社,1985.YAO Y B,XIE T,GAO Y M.Handbook of physical chemistry[M].Shanghai:Shanghai Science and Technology Press,1985.
[35]张辛亥,罗振敏,张海珩.煤自燃性的红外光谱研究[J].西安科技大学学报.2007,27(2):171-175.ZHANG X H,LUO Z M,ZHANG H Z.Self-ignition propensity of coal with FTIR spectra[J].Journal of Xi'an University of Science and Technology.2007,27(2):171-175.
[36]YOO B,AFZAL W,PRAUSNITZ J M.Solubility parameters for nine ionic liquids[J].Industrial&Engineering Chemistry Research,2012,51(29):9913-9917.
[37]VAN KREVELEN D W.Chemical structure and proper-ties of coal XXVII--coal constitution and solvent extraction[J].Fuel,1966,45:229-242.
[38]WEINBERG V L,YEN T F.‘Solubility parameters’in coal and coal liquefaction products[J].Fuel,1980,59(5):287-289.
[39]PAINTER P C,GRAF J,COLEMAN M M.Coal solubility and swelling.1.Solubility parameters for coal and the Flory.chi.parameter[J].Energy&Fuels,1990,4(4):379-384.
[40]HANSEN C M.Hansen solubility parameters:A user's handbook[M].2nd ed.New York:Springer New York Press,2007.
[41]廖静,马凤云,孙志强,等.空化洗油机械溶胀对新疆准东西沟煤液化性能的影响[J].煤炭学报,2016,41(5):1279-1286.LIAO J,MA F Y,SUN Z Q,et al.Effect of swelling mechanically with cavitated creosote oil on liquefaction properties of Xigou coal from Xinjiang Zhundong[J].Journal of China Coal Society,2016,41(5):1279-1286.
[42]郭靖,马凤云,玛·伊·拜克诺夫,等.溶胀对五彩湾煤低压直接液化性能的影响[J].煤炭学报,2010.35(7):1182-1187.GUO J,MA F Y,БайкеновМИ,et al.Effect of solvent swelling of Wucaiwan coal on hydro-liquefaction properties at lower pressure[J].Journal of China Coal Society,2010.35(7):1182-1187.
[43]SHUI H F,LIU J L,WANG Z C,et al.Effect of pre-swelling of coal at mild temperatures on its hydro-liquefaction properties[J].Fuel Processing Technology,2009,90(7):1047-1051.