燃烧科学与技术
燃燒科學與技術
연소과학여기술
JOURNAL OF COMBUSTION SCIENCE AND TECHNOLOGY
2015年
3期
260-266
,共7页
张良平%胡松%向军%孙路石%苏胜%肖凌峰%帅超%徐博洋
張良平%鬍鬆%嚮軍%孫路石%囌勝%肖凌峰%帥超%徐博洋
장량평%호송%향군%손로석%소성%초릉봉%수초%서박양
准东煤%微波萃取%分子结构%GC/MS%FTIR
準東煤%微波萃取%分子結構%GC/MS%FTIR
준동매%미파췌취%분자결구%GC/MS%FTIR
Zhundong coal%microwave-assisted extraction%molecular structure%GC/MS%FTIR
采用微波辅助加热,对新疆准东煤进行N-甲基吡咯烷酮(NMP)萃取,同时分别利用甲醇、四氢呋喃、二氯甲烷有机溶剂对萃取物进行溶解;对溶解物以及固体残留物采用气相色谱/质谱联用仪器(GC/MS)和傅里叶变换红外光谱仪(FTIR)进行分析。研究发现,基于 NMP 微波萃取的甲醇/四氢呋喃/二氯甲烷溶解方法,比单独使用低沸点溶剂萃取效果更好;通过比较发现,3种低沸点有机溶剂对 NMP 萃取物表现出不同的溶解特性;在煤的萃取溶解物中检测到大量含氮化合物以及9种含硫化合物、4种含氯化合物和2种含溴化合物。
採用微波輔助加熱,對新疆準東煤進行N-甲基吡咯烷酮(NMP)萃取,同時分彆利用甲醇、四氫呋喃、二氯甲烷有機溶劑對萃取物進行溶解;對溶解物以及固體殘留物採用氣相色譜/質譜聯用儀器(GC/MS)和傅裏葉變換紅外光譜儀(FTIR)進行分析。研究髮現,基于 NMP 微波萃取的甲醇/四氫呋喃/二氯甲烷溶解方法,比單獨使用低沸點溶劑萃取效果更好;通過比較髮現,3種低沸點有機溶劑對 NMP 萃取物錶現齣不同的溶解特性;在煤的萃取溶解物中檢測到大量含氮化閤物以及9種含硫化閤物、4種含氯化閤物和2種含溴化閤物。
채용미파보조가열,대신강준동매진행N-갑기필각완동(NMP)췌취,동시분별이용갑순、사경부남、이록갑완유궤용제대췌취물진행용해;대용해물이급고체잔류물채용기상색보/질보련용의기(GC/MS)화부리협변환홍외광보의(FTIR)진행분석。연구발현,기우 NMP 미파췌취적갑순/사경부남/이록갑완용해방법,비단독사용저비점용제췌취효과경호;통과비교발현,3충저비점유궤용제대 NMP 췌취물표현출불동적용해특성;재매적췌취용해물중검측도대량함담화합물이급9충함류화합물、4충함록화합물화2충함추화합물。
Zhundong coal from Xinjiang province was extracted with N-methyl pyrrolidone(NMP)by microwave-assisted heating,and the extract was dissolved with methanol,tetrahydrofuran and dichloromethane,respectively. The solutes and residues were analyzed by gas chromatography/mass spectrometry(GC/MS)and Fourier transform infrared spectrum(FTIR)respectively. The results show that the extraction with NMP is more efficient than that using methanol/tetrahydrofuran/dichloromethane alone. The three solvents with low boiling point have different dissolution characteristics for the NMP extract. Meanwhile,a large number of nitrogen-containing compounds,nine,sulfur-containing compounds,four,chlorine-containing compounds and two,bromine-containing compounds were detected in the solutes.