Feasibility and Economic Analysis of Diesel Oil Extraction from Oiled-Sand by Supercritical CO<sub>2</sub> Process

doi:10.7652/xjtuxb201505020

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Feasibility and Economic Analysis of Diesel Oil Extraction from Oiled-Sand by Supercritical CO₂ Process

更新时间：2025-07-09

- Feasibility and Economic Analysis of Diesel Oil Extraction from Oiled-Sand by Supercritical CO₂ Process
- Vol. 49, Issue 5, Pages: 128-133(2015)
- 作者机构：
  
  1. 西安理工大学印刷与包装学院,西安,710048
  2. 西安交通大学热流科学与工程教育部重点实验室,西安,710049
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb201505020
  CLC： X705
- Online First：10 May 2015，
  
  Published：2015
- 稿件说明：
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Feasibility and Economic Analysis of Diesel Oil Extraction from Oiled-Sand by Supercritical CO₂ Process[J]. 2015, 49(5): 128-133. DOI: 10.7652/xjtuxb201505020.
DOI：

Feasibility and Economic Analysis of Diesel Oil Extraction from Oiled-Sand by Supercritical CO₂ Process[J]. 2015, 49(5): 128-133. DOI: 10.7652/xjtuxb201505020. DOI：

摘要

为了对超临界CO

萃取油泥砂中柴油的可行性及经济性进行分析

根据文献数据获得了物质在超临界CO

中的溶解度与其萃取率的关系曲线

发现当溶解度大于25 g/(100 g)时

萃取效率高达98%。采用Aspen软件对柴油中的主要化合物C

～C

的超临界CO

萃取过程进行了模拟

分析了操作压力、萃取时间、CO

流量对萃取率的影响

优化了反应条件。结果表明

在温度为35 ℃、压力为20 MPa、萃取时间为180 min、CO

流量为60 kg/h、甲醇与CO

的流量比为0.3的条件下

柴油中C

～C

的萃取率高达95%。对20 t/d处理量的超临界CO

萃取系统的技术经济性分析表明:建设投资为1 500万元

处理含油量(质量分数)21%的油泥砂的收益为2.4万元/d

2年内即可收回投资; 利用超临界CO

萃取油泥砂中的柴油不仅可以解决当前的油泥砂污染问题

而且可以有效回收柴油

缓解目前日趋紧张的油气供需关系。

Abstract

To analyze the feasibility and economy of diesel oil extraction by supercritical CO

from oiled-sand

the relationship curve between the solubility in supercritical CO

and the extraction efficiency was obtained according to the corresponding references and experimental data. Results show that when the solubility is more than 25 g/(100 g)

the extraction efficiency can reach 98%. Aspen software was used for simulating the extraction efficiency of the main compounds of C

～C

in diesel

oil

and the operation parameters such as pressure

extraction time and CO

flow rate were optimized. It is shown that at the condition of 35 ℃

20 MPa

extraction time of 180 min

flow rate of 60 kg/h and methanol to CO

ratio of 0.3

the extraction efficiency of the C

～C

compounds can reach 95%. The technical and economic analyses of a 20 t/d supercritical CO

extraction system show that the construction investment is 15 million yuan

and 24 000 yuan can be earned per day when the oiled-sand with an oil mass fraction of 21% is treated by this system. So the initial construction investment can be recovered in two years. The supercritical CO

extraction process can not only solve the pollution problem of the existing oiled-sand

but also recover the diesel oil effectively

thus alleviating the increasingly tense supply-demand relationship of oil and fuel gas.

关键词

Keywords

references

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Feasibility and Economic Analysis of Diesel Oil Extraction from Oiled-Sand by Supercritical CO2 Process

DOI：10.7652/xjtuxb201505020

摘要

Abstract

关键词

Keywords

references

Feasibility and Economic Analysis of Diesel Oil Extraction from Oiled-Sand by Supercritical CO₂ Process