化工进展
化工進展
화공진전
CHEMICAL INDUSTRY AND ENGINEERING PROGRESS
2013年
9期
2126-2129,2149
,共5页
水葫芦%热解%生物能源%热重分析%气相色谱-质谱联用%X射线衍射%扫描电子显微镜
水葫蘆%熱解%生物能源%熱重分析%氣相色譜-質譜聯用%X射線衍射%掃描電子顯微鏡
수호호%열해%생물능원%열중분석%기상색보-질보련용%X사선연사%소묘전자현미경
water hyacinth%pyrolysis%bioenergy%TG%GC-MS%XRD%SEM
水葫芦是一种水体污染物,其蕴藏着大量的能量。为了使水葫芦变废为宝,解决环境污染的同时,提供一定的能源补给,在热重分析的基础上,采用固定床,借助GC、GC-MS、XRD和SEM等技术手段,研究不同热解温度段水葫芦热解后的气、液、固三相产物的特性。结果表明,低温热解温度段275~375℃生成的生物油不仅产率增加较大,而且生物油酸类较少、酯类较多,热值较高,品质明显优于高温热解温度段450~550℃生成的生物油;但高温热解温度段450~550℃下,明显有利于气体产物中高热值气体 H2和 CO的生成,生物质炭的结构孔径较大,晶体相态更加稳固,可见热解温度对三相产物的影响很大。
水葫蘆是一種水體汙染物,其蘊藏著大量的能量。為瞭使水葫蘆變廢為寶,解決環境汙染的同時,提供一定的能源補給,在熱重分析的基礎上,採用固定床,藉助GC、GC-MS、XRD和SEM等技術手段,研究不同熱解溫度段水葫蘆熱解後的氣、液、固三相產物的特性。結果錶明,低溫熱解溫度段275~375℃生成的生物油不僅產率增加較大,而且生物油痠類較少、酯類較多,熱值較高,品質明顯優于高溫熱解溫度段450~550℃生成的生物油;但高溫熱解溫度段450~550℃下,明顯有利于氣體產物中高熱值氣體 H2和 CO的生成,生物質炭的結構孔徑較大,晶體相態更加穩固,可見熱解溫度對三相產物的影響很大。
수호호시일충수체오염물,기온장착대량적능량。위료사수호호변폐위보,해결배경오염적동시,제공일정적능원보급,재열중분석적기출상,채용고정상,차조GC、GC-MS、XRD화SEM등기술수단,연구불동열해온도단수호호열해후적기、액、고삼상산물적특성。결과표명,저온열해온도단275~375℃생성적생물유불부산솔증가교대,이차생물유산류교소、지류교다,열치교고,품질명현우우고온열해온도단450~550℃생성적생물유;단고온열해온도단450~550℃하,명현유리우기체산물중고열치기체 H2화 CO적생성,생물질탄적결구공경교대,정체상태경가은고,가견열해온도대삼상산물적영향흔대。
Water hyacinth is a pollutant for the water body and contains a large amount of energy. In order to solve environmental pollution and at the same time provide a certain energy supply,in this paper based on thermogravimetric analysis,the characteristics of gas,liquid and solid products produced from the fixed bed pyrolysis of water hyacinth at different temperature were investigated by GC,GC-MS,XRD and SEM techniques. The results showed that compared with the bio-oil produced at 450-550 ℃ not only the increase of bio-oil at 275-375 ℃ was bigger but also the quality of bio-oil with less acid,more esters and higher calorific value was better;while at 450-550 ℃,it was apparently beneficial for the production of high calorific value gas such as H2 and CO,the aperture of biomass carbon was larger and the crystal structure was more stable. So it is obvious that the pyrolysis temperature has a big effect on the three phase products.