Kinetics of the esterification of palmitic acid with methanol catalyzed by 12-tungstophosphoric acid supported on ZrO2

被引：22

作者：

Srilatha, K. ^{[1
]}

Lingaiah, N. ^{[1
]}

Prasad, P. S. Sai ^{[1
]}

Devi, B. L. A. Prabhavathi ^{[2
]}

Prasad, R. B. N. ^{[2
]}

机构：

[1] Indian Inst Chem Technol, Catalysis Div, Hyderabad 500007, Andhra Pradesh, India

[2] Indian Inst Chem Technol, Ctr Lipid Sci & Technol, Hyderabad 500007, Andhra Pradesh, India

来源：

REACTION KINETICS MECHANISMS AND CATALYSIS | 2011年 / 104卷 / 01期

关键词：

Esterification; Biodiesel; Kinetic model; Palmitic acid; 12-Tungstophosphoric acid; Zirconia; ION-EXCHANGE-RESINS; BIODIESEL PRODUCTION; HYDROUS ZIRCONIA; FATTY-ACIDS; ACETIC-ACID; SILICA; ALKYLATION; CONVERSION; STABILITY; ACYLATION;

D O I：

10.1007/s11144-011-0334-z

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 series of catalysts containing 5-25 wt% 12-tungstophosphoric acid supported on hydrous zirconia were prepared and their catalytic activity evaluated for the esterification of palmitic acid with methanol. These catalysts were characterized by Fourier transform infrared spectroscopy, X-ray diffraction, surface area (BET method), and potentiometric titration for the estimation of acidity. The catalyst with 20 wt% TPA calcined at 300 A degrees C exhibited the highest activity. The effects of reaction variables such as catalyst loading, methanol to acid molar ratio and reaction temperature were studied. The pseudo-homogeneous (PH), Eley-Rideal (ER) and Langmuir-Hinshelwood-Hougen-Watson (LHHW) kinetic models were applied to correlate the experimental kinetic data and kinetic parameters were evaluated. The LHHW model gave the best fit.

引用

页码：211 / 226

页数：16

共 50 条

[21] METHANOL CONVERSION OVER METAL-SALTS OF 12-TUNGSTOPHOSPHORIC ACID
HAYASHI, H
MOFFAT, JB
JOURNAL OF CATALYSIS, 1983, 81 (01) : 61 - 66
[22] The solid acidity of 12-tungstophosphoric acid
Dias, JA
Osegovic, JP
Drago, RS
JOURNAL OF CATALYSIS, 1999, 183 (01) : 83 - 90
[23] 12-tungstophosphoric heteropolyacid supported on MCM-41 as acid catalyst
Sun, Y
Yue, YH
Li, HY
Gao, Z
ACTA CHIMICA SINICA, 1999, 57 (07) : 746 - 753
[24] Acidity and Characterization of 12-Tungstophosphoric Acid Supported on Silica-Alumina
de Mattos, Flavia C. G.
de Carvalho, Eduardo N. C. B.
de Freitas, Elon F.
Paiva, Mateus F.
Ghesti, Grace F.
de Macedo, Julio L.
Dias, Silvia C. L.
Dias, Jose A.
JOURNAL OF THE BRAZILIAN CHEMICAL SOCIETY, 2017, 28 (02) : 336 - +
[25] Liquid phase alkylation of benzene with dec-1-ene catalyzed on supported 12-tungstophosphoric acid
Hernandez-Cortez, J. G.
Martinez, L.
Soto, L.
Lopez, A.
Navarrete, J.
Manriquez, Ma
Lara, V. H.
Lopez-Salinas, E.
CATALYSIS TODAY, 2010, 150 (3-4) : 346 - 352
[26] Microwave-assisted acetalization of pentaerythritol catalyzed by 12-tungstophosphoric acid
Peng, YQ
Song, GH
Qian, XH
SYNTHETIC COMMUNICATIONS, 2001, 31 (24) : 3735 - 3738
[27] Esterification of bioplatform molecules over 12-tungstophosphoric acid anchored to MCM-41
Brahmkhatri, Varsha
Patel, Anjali
JOURNAL OF POROUS MATERIALS, 2013, 20 (01) : 209 - 217
[28] Spectroscopic identification of molecular species of 12-tungstophosphoric acid in methanol/water solutions
Holclajtner-Antunovic, I.
Bajuk-Bogdanovic, D.
Popa, A.
Uskokovic-Markovic, S.
INORGANICA CHIMICA ACTA, 2012, 383 : 26 - 32
[29] Esterification of bioplatform molecules over 12-tungstophosphoric acid anchored to MCM-41
Varsha Brahmkhatri
Anjali Patel
Journal of Porous Materials, 2013, 20 : 209 - 217
[30] Skeletal isomerization of 1-butene on 12-tungstophosphoric acid supported on zirconia
López-Salinas, E
Hernández-Cortéz, JG
Cortés-Jácome, MA
Navarrete, J
Llanos, ME
Vázquez, A
Armendáriz, H
López, T
APPLIED CATALYSIS A-GENERAL, 1998, 175 (1-2) : 43 - 53

← 1 2 3 4 5 →