Study on reactive distillation process for synthesis of methyl lactate with overfeeding

被引：0

作者：

Kong Q. ^{[1
]}

Lu J.-W. ^{[1
]}

Wang Q. ^{[1
]}

Tang J.-H. ^{[1
,2
]}

Zhang Z.-X. ^{[1
]}

Cui M.-F. ^{[1
]}

Chen X. ^{[1
]}

Qiao X. ^{[1
,2
]}

机构：

[1] State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing

[2] Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing

来源：

Gao Xiao Hua Xue Gong Cheng Xue Bao/Journal of Chemical Engineering of Chinese Universities | 2021年 / 35卷 / 02期

关键词：

Methyl lactate; Optimization; Overfeeding; Process simulation; Reactive distillation;

D O I：

10.3969/j.issn.1003-9015.2021.02.012

中图分类号：

学科分类号：

摘要：

A reactive distillation for the synthesis of methyl lactate with excess lactic acid feed was designed to improve the low efficiency in reactive distillation process of methyl lactate due to the unfavorable boiling points sequence of the highest boiling points of lactic acid and the lowest boiling point of methanol. Taking the annual total cost (TAC) as the objective function, the operating and structural parameters were optimized by the sequential optimization method. The results show that the minimum TAC was 3.05×106 CNY∙a-1 under the optimal operating conditions: excess ratio of 1.3, reactive section stages of 7 and stripping section stages of 16 (including reboiler) in reactive distillation column. Compared with the reactive distillation process with proportional feeding, the reboiler duty and TAC of the process with overfeeding decreased by 70.4% and 51.2% respectively. © 2021, Editorial Board of "Journal of Chemical Engineering of Chinese Universities". All right reserved.

引用

页码：280 / 286

页数：6

共 28 条

[1] DATTA R, HENRY M., Lactic acid: Recent advances in products, processes and technologies-A review, Journal of Chemical Technology and Biotechnology, 81, 7, pp. 1119-1129, (2006)
[2] APARICIO S., Computational study on the properties and structure of methyl lactate, The Journal of Physical Chemistry A, 111, 21, pp. 4671-4683, (2007)
[3] MAKI-ARVELA P, SIMAKOVA I L, SALMI T., Production of lactic acid / lactates from biomass and their catalytic transformations to commodities, Chemical Reviews, 114, 3, pp. 1909-1971, (2014)
[4] DE CLIPPEL F, DUSSELIER M, VAN ROMPAEY R., Fast and selective sugar conversion to alkyl lactate and lactic acid with bifunctional carbon-silica catalysts, Journal of the American Chemical Society, 134, 24, pp. 10089-10101, (2012)
[5] ZHANG M, MA L, XU Y M, Dynamic characteristics analysis and control system design of the reactive distillation process for refining lactic acid, Journal of Chemical Engineering of Chinese Universities, 20, 2, pp. 116-121, (2006)
[6] PANG J, ZHENG M, LI X., Catalytic conversion of carbohydrates to methyl lactate using isolated tin sites in SBA-15, ChemistrySelect, 2, 1, pp. 309-314, (2017)
[7] ZHAO X L, WEN T, ZHANG J J, Et al., Fe-Doped SnO<sub>2</sub> catalysts with both BA and LA sites: facile preparation and biomass carbohydrates conversion to methyl lactate MLA, RSC Advances, 7, 35, pp. 21678-21685, (2017)
[8] ZHOU L P, XU Y Y, YANG X M, Et al., Utilization of biodiesel byproduct glycerol: production of methyl lactate over Au/CuO and Sn-Beta binary catalyst under mild reaction conditions, Energy Conversion and Management, 196, pp. 277-285, (2019)
[9] LV F H, BI R, LIU Y H., The synthesis of methyl lactate and other methyl oxygenates from cellulose, Catalysis Communications, 49, pp. 78-81, (2014)
[10] LU X L, FU J, LANGRISH T, Et al., Simultaneous catalytic conversion of C6 and C5 sugars to methyl lactate in near-critical methanol with metal chlorides, BioResources, 13, 2, pp. 3627-3641, (2018)

← 1 2 3 →