亲爱的研友该休息了!由于当前在线用户较少,发布求助请尽量完整地填写文献信息,科研通机器人24小时在线,伴您度过漫漫科研夜!身体可是革命的本钱,早点休息,好梦!

Catalytic Aquathermolysis Used for Viscosity Reduction of Heavy Crude Oils: A Review

沥青质 催化作用 四氢萘 粘度 化学 化学工程 有机化学 材料科学 复合材料 工程类
作者
Samir Maity,Jorge Ancheyta,Gustavo Marroquín
出处
期刊:Energy & Fuels [American Chemical Society]
卷期号:24 (5): 2809-2816 被引量:243
标识
DOI:10.1021/ef100230k
摘要

The catalytic aquathermolysis becomes an important area for investigation to solve some of the problems during exploration of heavy crude oil. It has been reported in 1982 by Hyne et al. that metals can accelerate the aquathermolysis and thereafter the uses of several catalysts on this reaction have been studied. It is believed that superheated water passes heat to the hydrocarbon, and some asphaltene molecules are broken down by thermal heat to small molecules. Hence the viscosity as well as flow properties of heavy oil are improved. Moreover, the added heat provides driving force or pressure so that the viscous oils can flow easily and increases the oil production. When the catalyst is present on this reaction system, the viscosity is reduced very deeply. In general the catalysts employed for aquathermolysis are mineral, water-soluble, oil soluble, and dispersed catalyst. The viscosity reduction with these catalysts is in the order of mineral < water-soluble catalyst < oil-soluble catalyst < dispersed catalyst. It has also been found that during aquathermolysis, the saturates and aromatics increase while the amount of asphaltene and resin decreases. The use of different hydrogen donors on aquathermolysis also improves the quality of the heavy crude oil. The most commonly used hydrogen donor is tetralin. Moreover, when tetralin is used with a catalyst, the viscosity is also reduced more effectively. The use of catalysts in the real oil field indicates that the catalysts can substantially reduce viscosity and hence the catalytic aquathermolysis process can be used successfully for exploration of heavy crude oils. However, the oil soluble and dispersed catalysts are slightly more active than the water-soluble catalyst. The cost of the former two types of catalysts may be higher than the preparation cost of simple water-soluble catalysts. Therefore, more research is needed so that the catalysts can be used for this process more economically. Another problem is the efficiency of these catalysts in the oil field. The activity of the catalysts depends on the homogeneity of the temperature in the oil floor. When the superheated water is injected into the oil reservoir, the oil surface temperature is high. However, temperature is gradually lower on the depth of the oil floor, and hence the catalyst loses its activity. So, further investigation is also necessary to address this aspect.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
Owen应助hongtao采纳,获得10
2秒前
14秒前
哈哈哈完成签到 ,获得积分10
16秒前
1分钟前
liu完成签到 ,获得积分10
1分钟前
33发布了新的文献求助10
1分钟前
1分钟前
阿金啊发布了新的文献求助10
1分钟前
科研通AI2S应助Cong采纳,获得10
1分钟前
科目三应助科研通管家采纳,获得10
1分钟前
1分钟前
1分钟前
务实书包发布了新的文献求助10
2分钟前
2分钟前
2分钟前
十三完成签到,获得积分10
2分钟前
积极的台灯应助某某某采纳,获得10
2分钟前
十三发布了新的文献求助10
2分钟前
2分钟前
tlh完成签到 ,获得积分10
2分钟前
直觉应助阿金啊采纳,获得30
3分钟前
3分钟前
3分钟前
3分钟前
hongtao发布了新的文献求助10
3分钟前
3分钟前
闫雪发布了新的文献求助10
3分钟前
传奇3应助科研通管家采纳,获得10
3分钟前
我是老大应助闫雪采纳,获得10
3分钟前
4分钟前
hongtao完成签到 ,获得积分10
4分钟前
4分钟前
Jasper应助科研通管家采纳,获得10
5分钟前
5分钟前
6分钟前
璐璐侠完成签到,获得积分10
6分钟前
6分钟前
AJ完成签到 ,获得积分10
7分钟前
xiaozou55完成签到 ,获得积分10
7分钟前
binyao2024完成签到,获得积分10
8分钟前
高分求助中
The Mother of All Tableaux: Order, Equivalence, and Geometry in the Large-scale Structure of Optimality Theory 3000
A new approach to the extrapolation of accelerated life test data 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
基于可调谐半导体激光吸收光谱技术泄漏气体检测系统的研究 350
Robot-supported joining of reinforcement textiles with one-sided sewing heads 320
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3990181
求助须知:如何正确求助?哪些是违规求助? 3532136
关于积分的说明 11256472
捐赠科研通 3271042
什么是DOI,文献DOI怎么找? 1805190
邀请新用户注册赠送积分活动 882302
科研通“疑难数据库(出版商)”最低求助积分说明 809234