玉米秸秆液化产物中酚类物质的测定
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摘要
为获得生物质液化产物中酚类物质总含量,以浓硫酸为催化剂,苯酚为液化剂,采用微波辅助的方法液化玉米秸秆;采用气相色谱-质谱联用仪(GC-MS)测定液化产物的组成成分,红外光谱(FT-IR)分析玉米秸秆、液化残渣及液化产物的主要官能团变化,化学试剂法测定液化产物中酚类物质总量.结果表明:利用化学试剂法测定的液化产物中酚类物质总含量为52.0 mg/L,GC-MS测定液化产物中的芳香族有机物相对含量较高,为49.16%,以酚类化合物为主.FT-IR分析表明,液化过程中玉米秸秆基本上被完全降解液化,说明液化产物中的酚类物质主要来自于木质素.
In order to obtain the total content of phenolic compounds in the liquefaction products of biomass,this paper used the sulfuric acid as catalyst and phenol as liquefaction agent,the microwave-assisted method was used to liquefy the corn stalks.The total content of phenolic compounds in biomass liquefaction products were obtained by using gas chromatography-mass spectrometry( GC-MS). The main functional groups of corn stalks,liquefied residues and liquefied products were determined by infrared spectroscopy( FT-IR),and the total amount of phenolic compounds in liquefied products was determined by chemical reagent method. The results showed that the total content of phenolic compounds in liquefaction products was 52.0 mg/L by chemical reagent method,the relative content of aromatic organics in the liquefaction products was determined by GC-MS,which was 49.16%and mainly phenolic compounds.FT-IR analysis showed that in the liquefaction process,corn straw was completely degraded liquefaction and the phenolic substances in liquefaction products mainly came from lignin.
In order to obtain the total content of phenolic compounds in the liquefaction products of biomass,this paper used the sulfuric acid as catalyst and phenol as liquefaction agent,the microwave-assisted method was used to liquefy the corn stalks.The total content of phenolic compounds in biomass liquefaction products were obtained by using gas chromatography-mass spectrometry( GC-MS). The main functional groups of corn stalks,liquefied residues and liquefied products were determined by infrared spectroscopy( FT-IR),and the total amount of phenolic compounds in liquefied products was determined by chemical reagent method. The results showed that the total content of phenolic compounds in liquefaction products was 52.0 mg/L by chemical reagent method,the relative content of aromatic organics in the liquefaction products was determined by GC-MS,which was 49.16%and mainly phenolic compounds.FT-IR analysis showed that in the liquefaction process,corn straw was completely degraded liquefaction and the phenolic substances in liquefaction products mainly came from lignin.
引文
[1]吴创之,周肇秋,阴秀丽,等.我国生物质能源发展现状与思考[J].农业机械学报,2009,40(1):91-99.
[2]景元琢,董玉平,盖超,等.生物质固化成型技术研究进展与展望[J].中国工程科学,2011,13(2):72-77.
[3]吴创之.生物质气化发电技术讲座(5)生物质燃气发电技术[J].可再生能源,2003(5):58-60.
[4]吴创之.生物质气化发电技术讲座(4)生物质燃气净化技术[J].可再生能源,2003(4):55-56.
[5]冯莉,李天舒,徐凯宏.生物质燃料粉碎成型机螺旋运输装置设计[J].森林工程,2015,31(3):101-105.
[6]吴创之.生物质气化发电技术讲座(3)生物质焦油裂解技术[J].可再生能源,2003,(3):54-57.
[7]李小民.秸杆生物质高温空气燃烧研究[D].合肥:中国科学技术大学,2012.
[8]徐凯宏,刘晓蕾,米雅婷.秸秆燃料成型机平模失效机理及改进方案探讨[J].森林工程,2015,31(6):106-109.
[9]曾耀国.生物质低温热解炭化及生物质炭燃烧特性研究[D].长春:吉林大学,2014.
[10]赵龙龙,黄东升,王骁睿,等.秸秆轻质隔墙复合条板工程应用的试验研究[J].森林工程,2016,32(5):97-100.
[11]田原宇,乔英云.生物质液化技术面临的挑战与技术选择[J].中外能源,2014,19(2):19-24.
[12]王金表,蒋剑春,徐俊明,等.生物质液化及提质改性研究进展[J].生物质化学工程,2013,47(6):16-20.
[13]储呈浩,孙丰文,郑家妍,等.杨木粉液化产物及其树脂制备工艺[J].林业工程学报,2016,1(5):95-100.
[14]赵建华.货油微波加热效率及微波泄漏规律研究[D].大连:大连海事大学,2014.
[15]Lei H,Ren S,Julson J.The effects of reaction temperature and time and particle size of corn stover on microwave pyrolysis[J].Energy&Fuels,2009,23(6):3254-3261.
[16]万益琴,刘玉环,林向阳,等.玉米秸秆的催化微波裂解及生物油成分[J].农业工程学报,2009,25(4):190-195.
[17]谭瑞淀.微波处理废印刷电路板的基础研究[D].大连:大连理工大学,2007.
[18]Kawser M d,Farid N A.Thermochemical processing of rubber waste to liquid fuel[J].Plastics,Rubber and Composites Processing and Applications,2000,29(2):100-104.
[19]杨小旭,庞浩,张容丽,等.竹粉热化学液化的在线红外光谱分析[J].应用化学,2009,26(2):187-192.
[20]王丽红,柏雪源,易维明,等.玉米秸秆热解生物油特性的研究[J].农业工程学报,2006,22(3):108-111.
[21]杜洪双,常建民,王鹏起,等.高酚类含量生物油喷动循环流化床快速热解工艺[J].林产工业,2012,39(5):32-34.
[22]汤文武.木质素降解单环酚类产物加氢脱氧特性研究[D].合肥:中国科学技术大学,2016.
[23]谭忠鹤,张起凯,赵杉林,等.玉米秸秆磷钨酸催化液化研究[J].吉林农业大学学报,2012,34(1):90-93.
[24]Liu H,Li G,Xue D,et al.Determination of cellulose and hemicellulose contents in corn straw using near-infrared spectroscopy[J].Chinese Agricultural Science Bulletin,2013,29(35):182-186.
[25]赵燕.木质素的酚化研究及其在木质素型聚氨酯中的应用[D].南京:南京林业大学,2013.
[2]景元琢,董玉平,盖超,等.生物质固化成型技术研究进展与展望[J].中国工程科学,2011,13(2):72-77.
[3]吴创之.生物质气化发电技术讲座(5)生物质燃气发电技术[J].可再生能源,2003(5):58-60.
[4]吴创之.生物质气化发电技术讲座(4)生物质燃气净化技术[J].可再生能源,2003(4):55-56.
[5]冯莉,李天舒,徐凯宏.生物质燃料粉碎成型机螺旋运输装置设计[J].森林工程,2015,31(3):101-105.
[6]吴创之.生物质气化发电技术讲座(3)生物质焦油裂解技术[J].可再生能源,2003,(3):54-57.
[7]李小民.秸杆生物质高温空气燃烧研究[D].合肥:中国科学技术大学,2012.
[8]徐凯宏,刘晓蕾,米雅婷.秸秆燃料成型机平模失效机理及改进方案探讨[J].森林工程,2015,31(6):106-109.
[9]曾耀国.生物质低温热解炭化及生物质炭燃烧特性研究[D].长春:吉林大学,2014.
[10]赵龙龙,黄东升,王骁睿,等.秸秆轻质隔墙复合条板工程应用的试验研究[J].森林工程,2016,32(5):97-100.
[11]田原宇,乔英云.生物质液化技术面临的挑战与技术选择[J].中外能源,2014,19(2):19-24.
[12]王金表,蒋剑春,徐俊明,等.生物质液化及提质改性研究进展[J].生物质化学工程,2013,47(6):16-20.
[13]储呈浩,孙丰文,郑家妍,等.杨木粉液化产物及其树脂制备工艺[J].林业工程学报,2016,1(5):95-100.
[14]赵建华.货油微波加热效率及微波泄漏规律研究[D].大连:大连海事大学,2014.
[15]Lei H,Ren S,Julson J.The effects of reaction temperature and time and particle size of corn stover on microwave pyrolysis[J].Energy&Fuels,2009,23(6):3254-3261.
[16]万益琴,刘玉环,林向阳,等.玉米秸秆的催化微波裂解及生物油成分[J].农业工程学报,2009,25(4):190-195.
[17]谭瑞淀.微波处理废印刷电路板的基础研究[D].大连:大连理工大学,2007.
[18]Kawser M d,Farid N A.Thermochemical processing of rubber waste to liquid fuel[J].Plastics,Rubber and Composites Processing and Applications,2000,29(2):100-104.
[19]杨小旭,庞浩,张容丽,等.竹粉热化学液化的在线红外光谱分析[J].应用化学,2009,26(2):187-192.
[20]王丽红,柏雪源,易维明,等.玉米秸秆热解生物油特性的研究[J].农业工程学报,2006,22(3):108-111.
[21]杜洪双,常建民,王鹏起,等.高酚类含量生物油喷动循环流化床快速热解工艺[J].林产工业,2012,39(5):32-34.
[22]汤文武.木质素降解单环酚类产物加氢脱氧特性研究[D].合肥:中国科学技术大学,2016.
[23]谭忠鹤,张起凯,赵杉林,等.玉米秸秆磷钨酸催化液化研究[J].吉林农业大学学报,2012,34(1):90-93.
[24]Liu H,Li G,Xue D,et al.Determination of cellulose and hemicellulose contents in corn straw using near-infrared spectroscopy[J].Chinese Agricultural Science Bulletin,2013,29(35):182-186.
[25]赵燕.木质素的酚化研究及其在木质素型聚氨酯中的应用[D].南京:南京林业大学,2013.