Upgrading of Omani heavy oil with bimetallic amphiphilic catalysts

被引：24

作者：

Yusuf, Abdullahi ^{[1
]}

Al-Hajri, Rashid S. ^{[1
]}

Al-Waheibi, Yahya M. ^{[1
]}

Jibril, Baba Y. ^{[2
]}

机构：

[1] Sultan Qaboos Univ, Petr & Chem Engn Dept, POB 33,PC 123, Muscat, Oman

[2] Ahmadu Bello Univ, Dept Chem Engn, Zaria, Nigeria

来源：

JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS | 2016年 / 67卷

关键词：

Amphiphilic catalyst; Aquathermolysis; Heavy oil; LABORATORY EXPERIMENTS; AQUATHERMOLYSIS;

D O I：

10.1016/j.jtice.2016.07.020

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Upgrading of Omani heavy oil was studied under aquathermolytic conditions in the presence of amphiphilic catalysts of NiMo, CoMo and their mixture of 1:1 wt ratio. The optimum reaction parameters were 300 degrees C, 5wt% water concentration and 2wt% catalyst concentration. For viscosity reduction, the catalyst efficiency follows the trend (CoMo+NiMo)> NiMo>CoMo. The maximum viscosity reduction observed at optimum conditions was 95% after 24 h of reaction on CoMo+NiMo mixture. Upgrading products distribution showed an increase in <C14 components and a reduction in >C21 components - suggesting cracking of longer carbon chains. Fourier Transform-Infrared Spectroscopy (FT-IR) confirmed the formation of alkenes as well as shortening of CH2 bonds following upgrading. Nuclear Magnetic Resonance (NMR) confirmed the occurrence of dealkylation reactions as well as cleavage of side chains on aromatics. X-ray fluorescence (XRF) indicated a reduction in sulfur content of up to 15% and confirmed the importance of C-S bond cleavage and hydrogenation in reduction of heavy oil viscosity. Results obtained indicated that amphiphilic catalysts are useful in the upgrading of Omani heavy oil, which will lead to an increase in recovery of higher value hydrocarbons. (C) 2016 Taiwan Institute of Chemical Engineers. Published by Elsevier B.V. All rights reserved.

引用

页码：45 / 53

页数：9

共 27 条

[1] Phenomenological kinetics modeling of simultaneous HDS of dibenzothiophene and substituted dibenzothiophene over CoMoP/Al2O3 catalysts [J].

Al-Rashidy, Ahmad H. ;

Ali, Syed A. ;

Ahmed, Shakeel ;

Razzak, Shaikh A. ;

Hossain, Mohammad M. .

CHEMICAL ENGINEERING RESEARCH & DESIGN, 2015, 104 :819-827

[2] Effect of Water on Deposition, Aggregate Size, and Viscosity of Asphaltenes [J].

Aslan, Seyma ;

Firoozabadi, Abbas .

LANGMUIR, 2014, 30 (13) :3658-3664

[3] Laboratory Experiments and Field Test of a Difunctional Catalyst for Catalytic Aquathermolysis of Heavy Oil [J].

Chao, Kun ;

Chen, Yanling ;

Liu, Huachao ;

Zhang, Xianmin ;

Li, Jian .

ENERGY & FUELS, 2012, 26 (02) :1152-1159

[4] Laboratory experiments and field tests of an amphiphilic metallic chelate for catalytic aquathermolysis of heavy oil [J].

Chen, Yanling ;

Wang, Yuanqing ;

Wu, Chuan ;

Xia, Fei .

ENERGY & FUELS, 2008, 22 (03) :1502-1508

[5] Gemini catalyst for catalytic aquathermolysis of heavy oil [J].

Chen, Yanling ;

Yang, Chao ;

Wang, Yuanqing .

JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS, 2010, 89 (02) :159-165

[6] The viscosity reduction of nano-keggin-K3PMo12O40 in catalytic aquathermolysis of heavy oil [J].

Chen, Yanling ;

Wang, Yuanqing ;

Lu, Jiangyi ;

Wu, Chuan .

FUEL, 2009, 88 (08) :1426-1434

[7] REACTIONS OF BENZO[B]THIOPHENE WITH AQUEOUS METAL SPECIES - THEIR INFLUENCE ON THE PRODUCTION AND PROCESSING OF HEAVY OILS [J].

CLARK, PD ;

LESAGE, KL ;

TSANG, GT ;

HYNE, JB .

ENERGY & FUELS, 1988, 2 (04) :578-581

[8] STUDIES ON THE UPGRADING OF BITUMINOUS OILS WITH WATER AND TRANSITION-METAL CATALYSTS [J].

CLARK, PD ;

KIRK, MJ .

ENERGY & FUELS, 1994, 8 (02) :380-387

[9]

Fan H, FUEL, V83, P2035

[10] Catalytic Aquathermolysis of Heavy Oil with Iron Tris(acetylacetonate): Changes of Heavy Oil Composition and in Situ Formation of Magnetic Nanoparticles [J].

Galukhin, Andrey V. ;

Erokhin, Anton A. ;

Osin, Yuri N. ;

Nurgaliev, Danis K. .

ENERGY & FUELS, 2015, 29 (08) :4768-4773

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