Modelling the effects of reaction temperature and flow rate on the conversion of ethanol to 1,3-butadiene

被引：35

作者：

Da Ros, Simoni ^{[1
,2
]}

Jones, Matthew D. ^{[2
]}

Mattia, Davide ^{[3
]}

Schwaab, Marcio ^{[4
]}

Noronha, Fabio B. ^{[5
]}

Pinto, Jose Carlos ^{[1
]}

机构：

[1] Univ Fed Rio de Janeiro, COPPE, Programa Engn Quim, Cidade Univ,CP 68502, BR-21941972 Rio De Janeiro, Brazil

[2] Univ Bath, Dept Chem, Bath BA2 7AY, Avon, England

[3] Univ Bath, Dept Chem Engn, Bath BA2 7AY, Avon, England

[4] Univ Fed Rio Grande do Sul, Dept Engn Quim, Rua Engn Luiz Englert S-N, BR-90040040 Porto Alegre, RS, Brazil

[5] Natl Inst Technol, Catalysis Div, Av Venezuela 82, BR-20081312 Rio De Janeiro, Brazil

来源：

APPLIED CATALYSIS A-GENERAL | 2017年 / 530卷

基金：

英国工程与自然科学研究理事会;

关键词：

Ethanol; 1,3-Butadiene; Silica-magnesia catalyst; Experimental design; Kinetics; SUSTAINABILITY ASSESSMENT; CATALYTIC CONVERSION; BUTADIENE FORMATION; MGO-SIO2; CATALYSTS; SILICA; CHEMISTRY; MECHANISM; PRODUCTS; MAGNESIA; LEBEDEV;

D O I：

10.1016/j.apcata.2016.11.008

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A full factorial experimental design was performed to investigate the conversion of ethanol to 1,3 butadiene (1,3-BD), through manipulation of the reaction temperature and ethanol weight hourly space velocity. Reactions were carried out in presence of the catalyst K2O:ZrO2:ZnO/MgO-SiO2, prepared by co-precipitation methods. Mathematical models were developed to correlate observed product selectivities, 1,3-BD yields and productivities with the manipulated reaction variables, allowing for quantification of variable effects on catalyst activity and assessment of the kinetic mechanism. Obtained 1,3-BD productivities were as high as 0.5g(BD)/g(cat) h,g(BD)/g(cat) h, with 1,3-BD yields of 27%. Results suggest that acetaldehyde condensation is the rate determining step. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：37 / 47

页数：11

共 48 条

[1] Effect of Preparation Method and CuO Promotion in the Conversion of Ethanol into 1,3-Butadiene over SiO2-MgO Catalysts [J].

Angelici, Carlo ;

Velthoen, Marjolein E. Z. ;

Weckhuysen, Bert M. ;

Bruijnincx, Pieter C. A. .

CHEMSUSCHEM, 2014, 7 (09) :2505-2515

[2]

Baerdemaeker T.D., 2015, ACS CATAL, V5, P3392

[3] Conversion of ethanol to 1,3-butadiene over Na doped ZnxZryOz mixed metal oxides [J].

Baylon, Rebecca A. L. ;

Sun, Junming ;

Wang, Yong .

CATALYSIS TODAY, 2016, 259 :446-452

[4]

Bhattacharyya S.K., 1962, J APPL CHEM, V12, P97

[5] KINETIC STUDY ON MECHANISM OF CATALYTIC CONVERSION OF ETHANOL TO BUTADIENE [J].

BHATTACHARYYA, SK ;

SANYAL, SK .

JOURNAL OF CATALYSIS, 1967, 7 (02) :152-+

[6]

Bhattacharyya SK., 1962, J. Appl. Chem, V12, P105, DOI [10.1002/jctb.5010120302, DOI 10.1002/JCTB.5010120302]

[7]

Box G.E., 1978, STAT EXPT

[8]

Box G.E.P., 2005, Statistics for Experimenters. Design, Innovation, and Discovery, V2

[9] Synthesis and characterisation of magnesium silicate hydrate gels [J].

Brew, DRM ;

Glasser, FP .

CEMENT AND CONCRETE RESEARCH, 2005, 35 (01) :85-98

[10] CO/HZSM-5 CATALYST FOR SYNGAS CONVERSION - INFLUENCE OF PROCESS VARIABLES [J].

CALLEJA, G ;

DELUCAS, A ;

VANGRIEKEN, R .

FUEL, 1995, 74 (03) :445-451

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