CuSO_(4)/NaOH催化稠油原位水热改质规律研究  

Investigation on the Catalytic Upgrading of Heavy Oil Using CuSO_(4)/NaOH

作　　者：周衍涛 赵秋阳 张延龙 赵珂宇 柯博文 金辉[1] 郭烈锦[1] ZHOU Yantao;ZHAO Qiuyang;ZHANG Yanlong;ZHAO Keyu;KE Bowen;JIN Hui;GUO Liejin(State Key Laboratory of Multiphase Flow in Power Engineering,Xi’an Jiaotong University,Xi’an 710049,China)

机构地区：[1]西安交通大学动力工程多相流国家重点实验室,西安710049

出　　处：《工程热物理学报》2025年第3期846-850,共5页Journal of Engineering Thermophysics

基　　金：国家自然科学基金委“能源有序转化”基础科学中心项目(No.51888103,No.52376146)。

摘　　要：稠油虽然具有巨大的资源潜力,但是流动性差、开采难度大。原位改质技术是通过水热裂解反应在地下原位对稠油进行改质降黏,能显著提高稠油的采收率。原位改质技术常用过渡金属类物质作为催化剂,基于对过渡金属催化水热裂解反应的机理的研究,提出了一种由无机盐和碱组成的复合催化剂,解决了无机盐催化效率低下的问题,兼具成本低廉、易于配注的优点,具有广阔的应用前景。本文通过响应曲面法对复合催化剂配比及反应温压的影响展开分析,发现响应曲面法建立的回归模型能较好地预测改质效果,过高或过低的CuSO_(4)用量和反应温度都不适合提高改质效率,而提高NaOH用量则不会产生负面影响。The heavy oil has enormous resource potential,but its poor fluidity makes the extraction difficult.The in-situ upgrading technology aims to decrease the heavy oil viscosity and enhance the oil recovery by the hydrothermal cracking reaction.The transition metal was used as catalyst in in-situ upgrading technology.The composite catalyst including inorganic salt and alkali was been proposed based on the mechanism study of hydrothermal cracking reaction.The composite catalyst solve the disadvantages of low catalytic efficiency and have the advantages of low cost and easy injection,which have a wide application prospect.This work used the response surface methodology to analyze the impact of composite catalyst ratio,reaction temperature and pressure.It was found that the response surface methodology can predict the upgrading results accurately,and excessive or insufficient CuSO_(4) concentration and reaction temperature were not suitable for improving the upgrading efficiency,while increasing NaOH concentration didn’t have a negative impact.

关 键 词：稠油 原位改质 复合催化剂 响应曲面法 

分 类 号：TE355[石油与天然气工程—油气田开发工程]