乙醇脱水3A分子筛吸附剂吸附性能的研究
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摘要
研究了乙醇脱水3A分子筛吸附剂对水和乙醇的气相吸附性能,在Φ100 mm的吸附柱中测定了乙醇脱水吸附剂吸附乙醇溶液中水的穿透曲线。考察了吸附过程中进料流速、进料温度、床层高度和进料浓度等因素对吸附穿透曲线的影响。结果表明:3A分子筛对水的吸附能力比对乙醇较强,可以选择性吸附水分,达到脱水目的。3A分子筛在高温下仍然具有很好的吸水性能,具有很高的工业应用价值。
The water and ethanol vapors adsorption characteristic of the ethanol dehydration 3A molecular sieve adsorbent was studied and its breakthrough curve of water was studied through using a column(Φ100 mm) filled with this ethanol dehydration adsorbent. The influences of various factors were also detailed,such as the feed flow rate,the feed temperature,the bed thickness and the charging C_2H_5OH concentration on the breakthrough curves. The results showed that the adsorption performance of water on 3A zeolite was much stronger than that of ethanol,which could achieve the purpose of dehydration selective adsorption of water. 3A molecular sieve still had very good water absorption performance at high temperature,which had a very high industrial application value.
The water and ethanol vapors adsorption characteristic of the ethanol dehydration 3A molecular sieve adsorbent was studied and its breakthrough curve of water was studied through using a column(Φ100 mm) filled with this ethanol dehydration adsorbent. The influences of various factors were also detailed,such as the feed flow rate,the feed temperature,the bed thickness and the charging C_2H_5OH concentration on the breakthrough curves. The results showed that the adsorption performance of water on 3A zeolite was much stronger than that of ethanol,which could achieve the purpose of dehydration selective adsorption of water. 3A molecular sieve still had very good water absorption performance at high temperature,which had a very high industrial application value.
引文
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[15]吴勇.含水乙醇气相吸附脱水研究[D].郑州:郑州大学,2005.
[16]雪金勇.新型球形吸附剂制取无水乙醇实验研究[D].郑州:郑州大学,2008.
[17]董玄吉.椭球形生物质吸附剂吸附性能研究[D].郑州:郑州大学,2015.
[2]赵群,王红岩,刘人和,等.世界页岩气发展现状及我国勘探前景[J].天然气技术,2008(3):11-14.
[3]徐昌洪,方家骥.国内外燃料乙醇生产和应用情况分析[J].精细与专用化学品,2007(22):30-35.
[4]张成虎,秦艳飞.对工业化生产无水乙醇的探讨[J].酿酒科技,2001(2):45-46.
[5]Michael R Landisch,Karen Dyck.Dehydration of Ethanol:New Approach Gives Positive Energy Blance[J].Science,1979(205):898-900.
[6]胡建良.乙醇汽油的生产与应用[J].中外能源,2006,11(5):90-94.
[7]陈铁,李瑞.燃料乙醇——酒精行业可持续发展之路[J].酿酒科技,2006(4):107-108.
[8]曹福禄.分子筛法无水酒精生产工艺探讨[J].酿酒,2006(8):76-78.
[9]李浩.分子筛吸附法制无水乙醇的机理及工艺[J].山东化工,2009(11):29-33.
[10]常华,袁希钢,曾爱武.用于乙醇脱水的生物质吸附性能[J].化工学报,2004(2):309-312.
[11]吴勇.含水乙醇气相吸附脱水研究[D].郑州:郑州大学,2005.
[12]高德忠,王昌东,李丽华,等.燃料乙醇的性能及生产工艺[J].辽宁石油化工大学学报,2004,24(2):23-26.
[13]常华.乙醇/水两组分体系在生物质上的气相吸附过程研究[D].天津:天津大学,2006.
[14]Michael R Ladisch,Marclo Voloch,Juan Hong,et al.Cornmeal Adsorber for Dehydrating Ethanol Vapors[J].Ind.Eng.Chem.Process Dev.,1984,23:437-443.
[15]吴勇.含水乙醇气相吸附脱水研究[D].郑州:郑州大学,2005.
[16]雪金勇.新型球形吸附剂制取无水乙醇实验研究[D].郑州:郑州大学,2008.
[17]董玄吉.椭球形生物质吸附剂吸附性能研究[D].郑州:郑州大学,2015.