文献类型：期刊文献

英文题名：Impact of Oil Composition on Microwave Heating Behavior of Heavy Oils

作者：Zhang, Yang[1];Adam, Mohamed[2];Hart, Abarasi[3];Wood, Joseph[3];Rigby, Sean P.[2];Robinson, John P.[2]

机构：[1]East China Univ Sci & Technol, Inst Petr Proc, Shanghai, Peoples R China;[2]Univ Nottingham, Fac Engn, Nottingham NG7 2RD, England;[3]Univ Birmingham, Sch Chem Engn, Birmingham B15 2TT, W Midlands, England

年份：2018

卷号：32

期号：2

起止页码：1592

外文期刊名：ENERGY & FUELS

收录：;EI(收录号：20180804827028);WOS:【SCI-EXPANDED(收录号:WOS:000426015000062)】；

基金：This research is funded by the Engineering and Physical Sciences Research Council (EPSRC) (Grant Number: EP/N032985/1). The authors also thank Petrobank Energy and Resources, Ltd. (now Touchstone Exploration Inc.), Canada and China Petrochemical Corporation (Sinopec Group), China for supplying the oils used in this study. The assistance of Lawrence Pont from the Nottingham Transportation Engineering Centre (NTEC) with the viscosity measurement is also appreciated.

语种：英文

外文关键词：Electromagnetic fields - Resins - Microwave heating - Additives - Dielectric losses - Heavy oil production - Microwaves

摘要：Electromagnetic heating techniques have recently received significant attention as alternatives to conventional heating methods for thermal processing of viscous and heavy oils. One of the benefits of electromagnetic heating is that the electromagnetic field can penetrate the viscous oil and the rock matrix, allowing heating to take place a significant distance from the electromagnetic source. Opportunities exist for electromagnetic heating in overcoming the heat-transfer limitations within viscous oils and potentially as a down-hole or in situ heating technique to raise the temperature within a reservoir. The fundamental interaction of electromagnetic energy with viscous and heavy oils and their constituent components is poorly understood, and this study enhances the understanding of these interactions at microwave frequencies by establishing the effect of temperature on the dielectric properties of heavy oil and its SARA fractions. The dielectric properties of two heavy oils were studied at temperatures up to 300 degrees C and frequencies from 900 MHz to 3.0 GHz. The loss factor of both oils was found to increase significantly with temperature, which was linked to a corresponding reduction in viscosity. It is shown for the first time, contrary to previous assertions in the literature, that aromatics and resins are the main contributors toward dielectric loss in heavy oils, whereas saturates and asphaltenes were found to have a negligible influence on the loss factor of the oil. Thus, it will be seen that, at higher temperatures or where there is a high abundance of aromatics and resins, the oils are more susceptible to being heated directly with microwaves, opening up new opportunities for microwave processing of oils in refinery and field settings without the need for microwave-absorbing additives.