[1]任笑林,赵基钢*,丛梅,等.羟乙基磺酸钠与一甲胺反应的热力学分析[J].石化技术与应用,2022,6:387-392.
REN Xiao-lin,ZHAO Ji-gang,CONG Mei,et al.Thermodynamic analysis on reaction between sodium hydroxyethyl sulfonate and monomethylamine[J].Petrochemical technology & application,2022,6:387-392.
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《石化技术与应用》[ISSN:1009-0046/CN:62-1138/TQ]
- 期数:
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2022年6期
- 页码:
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387-392
- 栏目:
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- 出版日期:
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2022-11-10
文章信息/Info
- Title:
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Thermodynamic analysis on reaction between sodium hydroxyethyl sulfonate and monomethylamine
- 文章编号:
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1009-0045(2022)06-0387-06
- 作者:
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任笑林1; 赵基钢1; 2*; 丛梅1; 袁向前1
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1.华东理工大学化工学院 绿色能源化工国际联合研究中心,上海 200237;2.石河子大学化学化工学院 新疆兵团化工绿色加工重点实验室,新疆 石河子 832003
- Author(s):
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REN Xiao-lin1; ZHAO Ji-gang1; 2; CONG Mei1; YUAN Xiang-qian1
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1. International Joint Research Center for Green Energy Chemical Engineering, School of Chemical Engineering, EastChina University of Science and Technology, Shanghai 200237, China;2. Key Laboratory of Chemical Green Processing of Xinjiang Corps, College of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832003, China
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- 关键词:
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N-甲基牛磺酸钠; Benson基团贡献法; 一甲胺; 羟乙基磺酸钠; 热力学分析
- Keywords:
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N-methyl taurine sodium; Benson group contribution method; monomethylamine; sodium hydroxyethyl sulfonate; thermodynamic analysis
- 分类号:
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TQ 203.9;TQ 207+.2;TQ 612.9
- DOI:
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DOI:10.19909/j.cnki.ISSN1009-0045.2022.06.0387
- 文献标识码:
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B
- 摘要:
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使用Benson基团贡献法对羟乙基磺酸钠与一甲胺反应体系进行了热力学分析,计算了该反应体系的标准摩尔反应焓(■)、标准反应吉布斯自由能(■)以及平衡常数(K)等。结果表明:当反应温度(T)为25~298 ℃时,羟乙基磺酸钠氨解反应为放热反应,反应的■,■均为负值,并且反应自发进行;K随着T升高而降低,虽然降低T有利于该氨解反应的进行,但是T过低,则反应速率减慢,目标产物N-甲基牛磺酸钠的收率下降;反应在此温度区间的总绝热温升小于292.15 K。在工业生产中,一般将该反应的温度、压力相应控制在140~240 ℃,4~12 MPa。
- Abstract:
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The thermodynamic analysis on reaction system of sodium hydroxyethyl sulfonate and methylamine was carried out by Benson group contribution method, and the standard molar enthalpy of the reaction system(■) , Gibbs free energy of standard reaction(■) and the equilibrium constant (K) were calculated in order to provide a theoretical basis for the direction and limit of the ammonolysis reaction of sodium hydroxyethylsulfonate in industry. The results showed that: when the reaction temperature (T) was at 25-298 ℃, the ammonolysis reaction of sodium hydroxyethylsulfonate was exothermic, both the ■ and ■ of the reaction were negative and the reaction was spontaneous. K had decreased with the increase of T, although lowering T was beneficial to the ammonolysis reaction, if T was too low, the reaction rate would slow down and the yield of the target product sodium N-methyltaurine would decrease. The adiabatic temperature increment of the reaction in this section was less than 292.15 K. In the actual industrial production control, the temperature and pressure of the reaction were generally controlled at 140-240 ℃ and 4-12 MPa, respectively.
参考文献/References
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备注/Memo
- 备注/Memo:
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国家重点研发计划基金资助项目(项目编号:2017 YFB 0306601)
更新日期/Last Update:
2022-11-10