Optimization of Heavy Oil Upgrading Using Dispersed Nanoparticulate Iron Oxide as a Catalyst
Optimization of Heavy Oil Upgrading Using Dispersed Nanoparticulate Iron Oxide as a Catalyst
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DOI：
10.1021/acs.energyfuels.5b01451
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发表时间：
2015-10-01
期刊：
影响因子：
5.3
通讯作者：
Wood, Joseph
中科院分区：
文献类型：
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作者：
Al-Marshed, Abdullah;Hart, Abarasi;Wood, Joseph
以前已经证明，通过脚趾到脚跟注气(泰国)可以通过用球团催化剂环空包围水平生产井来扩大稠油的现场提质。尽管这种结构实现了进一步的升级，但由于重油裂化而导致的焦炭和金属沉积在催化剂和孔位上积累，对催化剂的活性、使用寿命和工艺都有不利影响。为了缓解上述挑战，本研究研究了油与纳米粒子催化剂之间的另一种接触模式。应用田口方法对反应因素的影响进行了优化，选择了在抑制焦炭产率的同时最大限度地提高重油提质水平的最佳值。考察了反应温度、氢气初始压力、反应时间、铁金属负载量和搅拌速度等因素对反应的影响。采用正交表、反应均值分析、平均信噪比(S/N)分析和方差分析(ANOVA)分析各反应因素的影响。详细优化了氧化铁分散纳米粒子的反应条件(
It has previously been shown that in situ upgrading of heavy oil by toe-to-heel air injection (THAI) can be augmented by surrounding the horizontal production well with an annulus of pelleted catalyst. Despite the further upgrading achieved with this configuration, the accumulation of coke and metals deposits on the catalyst and pore sites, resulting from cracking of the heavy oil, have a detrimental effect on the catalyst activity, life span, and process. An alternative contacting pattern between the oil and nanoparticulate catalysts was investigated in this study, to mitigate the above-mentioned challenges. The Taguchi method was applied to optimize the effect of reaction factors and select the optimum values that maximize level of heavy oil upgrading while suppressing coke yield. The reaction factors evaluated were reaction temperature, H-2 initial pressure, reaction time, iron metal loading and speed of mixing. An orthogonal array, analysis of mean of response, analysis of mean signal-to-noise ratio (S/N) and analysis of variance (ANOVA) were employed to analyze the effect of these reaction factors. Detailed optimization of the reaction conditions with iron oxide dispersed nanoparticles (