全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...
化工学报  2015 

速生桉木硫酸盐法制浆过程中甲醇生成量的预测模型

DOI: 10.11949/j.issn.0438-1157.20141646, PP. 987-991

Keywords: 速生桉木,硫酸盐法蒸煮,动力学,甲醇生成量,预测,模型

Full-Text   Cite this paper   Add to My Lib

Abstract:

以速生桉木硫酸盐法制浆为研究对象,考察了制浆过程中有效碱浓度、H因子(时间和温度)对甲醇生成量以及残余有效碱浓度变化的影响,研究发现制浆过程残余有效碱浓度与蒸煮H因子的负指数呈线性关系,结合这一关系从动力学角度建立了引入碱浓动态变化的制浆过程中预测甲醇生成量的数学模型。结果表明该模型能很好地预测速生桉木硫酸盐法蒸煮过程中各工艺条件下的甲醇生成量(R20.990)。模型的预测效果表明,温度对甲醇生成量影响显著,而初始有效碱浓度对甲醇生成量影响较小。实际生产中,可根据该模型对各工艺条件对甲醇生成量影响程度的预测效果适当改变工艺条件,以控制制浆过程中单位木素脱除量的甲醇生成量。

References

[1]  Johlin F C, Fortman C S, Nghiem D D, Tephly T R. Studies on the role of folic acid and folate-dependent enzymes in human methanol poisoning [J]. Mol. Pharmacol., 1987, 31: 557
[2]  Pinkerton J E. MACT portion of the cluster rule [J]. TAPPI J., 1998, 81 (2): 99-105
[3]  NCASI. Volatile organic emissions from pulp and paper mill sources, (Ⅳ): Kraft brown stock washing, screening and rejects refining sources[R]. NCASI Technical Bulletin, 1994
[4]  Jain A. Minimum Effluent Mills Symposium Proceedings[M]. Atlanta: Tappi Press, 1996
[5]  Zhu J Y, Chai X S. Factors affecting the partitioning of methanol vapor-liquid phases in black liquors [J]. TAPPI J., 1999, 82 (2): 123-129
[6]  Gu Y X, Edwards L, Zhu J Y, Chai X S. Cluster rule compliance tools: predicting kraft mill VOCs (Ⅱ): Methanol generation models [J]. TAPPI J., 2001, 84 (4): 14-27
[7]  Zhu J Y, Chai X S, Dhasmana B. Formation of volatile organic compounds (VOCs) during pulping [J]. J. Pulp Pap. Sci., 1999, 25 (7): 256-263
[8]  Zhu J Y, Yoon S H, Liu P H, Chai X S. Methanol formation during alkaline wood pulping [J]. TAPPI J., 2000, 83 (7): 1-13
[9]  Wang Lei (王磊), Xu Guotao (徐国涛), Zhou Lidong (周丽东), Wang Zhaojiang (王兆江), Zhou Jinghong (周敬红). Methanol formation during pulping [J]. Pap. Sci. Technol. (造纸科学与技术), 2008, 27 (6): 71-73
[10]  Zhou Jinghong (周敬红), Wang Zhaojiang (王兆江), Chai Xinsheng (柴欣生). Formation and control of volatile organic compounds (VOCs) during pulping [J]. China Pulp Pap. (中国造纸), 2007, 26 (11): 54-56
[11]  Yoon S H, Chai X S, Zhu J Y, Kim B H, Song B K. In-digester demethoxylation kinetics for VOC/TRS formation during the kraft pulping of loblolly pine [J]. Ind. Eng. Chem. Res., 2003, 9 (2): 125-133
[12]  Clayton D W. The alkaline degradation of some hardwood 4-O- methyl-D-glucuronoxylans [J]. Svensk Papperstidn, 1963, 66 (4): 115
[13]  Hu Huichao (胡会超), Chai Xinsheng (柴欣生). Formation of methanol during oxygen delignification of southern pine pulp [J]. China Pulp Pap. (中国造纸), 2011, 30 (12): 6-10
[14]  Zhang Chunyun (张春云), Hu Huichao (胡会超), Chai Xinsheng (柴欣生). A kinetic model of methanol formation during oxygen delignification of fast-growing eucalyptus kraft pulps [J].China Pulp Pap. (中国造纸), 2012, 31 (8): 18-22
[15]  Fu Limin (付丽敏), Hu Huichao (胡会超), Chai Xinsheng (柴欣生), Luo Xiaolin (罗小林). An empirical model of methanol formation during oxygen delignification of wheat straw pulp [J]. China Pulp Pap. Ind. (中华纸业), 2011, 32 (24): 13-16
[16]  Zhang Chunyun (张春云), Hu Huchao (胡会超), Chai Xinsheng (柴欣生). Effect of liquor ratio on methanol formation in eucalyptus kraft pulping [J]. Pap. Sci. Technol. (造纸科学与技术), 2011, 30 (3): 16-21
[17]  Chai X S, Dhasmana B, Zhu J Y. Determination of volatile organic compound contents in kraft mill streams using headspace gas chromatography [J]. J. Pulp Pap. Sci., 1998, 24 (2): 50-54
[18]  Li H L, Zhan H Y, Fu S Y, Chai X S. Rapid determination of methanol in black liquors by full evaporation headspace gas chromatography [J]. J. Chromatogr. A, 2007, 1175 (1): 133
[19]  Shi Shulan (石淑兰), He Fuwang (何福望). Analysis and Determination of Pulping and Papermaking (制浆造纸分析与检测) [M]. Beijing: China Light Industry Press, 2003
[20]  Gilarranz M A, Santos A, Garcia J, Oliet M, Rodriguez F. Kraft pulping of eucalyptus globulus: kinetics of residual delignification [J]. Ind. Eng. Chem. Res., 2002, 41: 1955-1959
[21]  Gustafson R R, Slelcher C A, Mckean W T, Finlayson B A. Theoretical model of the kraft pulping process [J]. Ind. Eng. Chem. Process Des. Dev., 1983, 22 (1): 87-96
[22]  Laidler K J. Chemical Kinetics [M]. 3rd ed. New York: Harper & Row, 1987

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133