原油正压闪蒸工艺与分馏稳定工艺对比研究
Research on crude oil stabilization processes by comparing flashing under pressure with fractionation
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- 引用格式:
-
林名桢,范文彬,刘坤,何蔓,马业超,刘海燕.原油正压闪蒸工艺与分馏稳定工艺对比研究[J].天然气与石油,2022,40(2):14-20.doi:10.3969/j.issn.1006-5539.2022.02.003
LIN Mingzhen, FAN Wenbin, LIU Kun, HE Man, MA Yechao, LIU Haiyan.Research on crude oil stabilization processes by comparing flashing under pressure with fractionation[J].Natural Gas and Oil,2022,40(2):14-20.doi:10.3969/j.issn.1006-5539.2022.02.003
- DOI:
- 10.3969/j.issn.1006-5539.2022.02.003
- 作者:
- 林名桢1 范文彬1 刘坤1 何蔓1 马业超2 刘海燕3
LIN Mingzhen1, FAN Wenbin1, LIU Kun1, HE Man1, MA Yechao2, LIU Haiyan3
- 作者单位:
- 1. 山东石油化工学院油气工程学院, 山东 东营 257061; 2. 中工国际工程股份有限公司, 北京 100031; 3. 中石化石油工程设计有限公司, 山东 东营 257026
1. College of Oil and Gas Engineering, Shandong Institute of Petroleum and Chemical Technology, Dongying, Shandong, 257061, China; 2. China CAMC Engineering Co., Ltd., Beijing, 100031, China; 3. Sinopec Petroleum Engineering Corporation, Dongying, Shandong, 257026, China
- 关键词:
- 正压闪蒸;分馏稳定;饱和蒸气压;单位产品能耗;函数关系式
Flashing under pressure; Fractionation; Saturated vapor pressure; Energy consumption per unit product; Functional formula
- 摘要:
- 为进一步明确正压闪蒸工艺和分馏稳定工艺的差异,以某特定工程为例,利用HYSYS软件对两种工艺进行了研究,并计算了稳定原油饱和蒸气压、稳定原油中C4及C4以下组分质量含量、单位产品能耗随加热温度的变化关系。结果表明：两种工艺条件下稳定原油饱和蒸气压均随加热温度的升高而降低,分馏稳定工艺条件下的降低趋势更明显;加热温度相同时,正压闪蒸工艺条件下稳定原油中C4及C4以下组分质量含量更高,且变化幅度相对缓慢;随着加热温度的升高,两种工艺条件的稳定原油单位产品能耗呈直线规律增加,且数值相差并不明显,但轻烃单位产品能耗均降低,正压闪蒸工艺条件下的轻烃单位产品能耗比分馏稳定工艺条件下的轻烃单位产品能耗更低。最后提出了指标参数随加热温度变化的函数关系式,并对原油稳定深度的主要指标影响因素进行了分析。研究结果可为后续原油稳定工艺的选择和设计提供参考。
In order to further clarify the differences between two crude oil stabilization processes, namely flashing under pressure and fractionation, the two processes were simulated using HYSYS simulation software based on a specific project. The saturated vapor pressure of the stabilized crude oil, the quality content of C4 and components below C4 in the stabilized crude oil and energy consumption per unit product with heating temperature were calculated. The results show that the saturated vapor pressure of stabilised crude oil decreases with the increase of the heating temperature, and happens with both processes. However the decreasing trend of saturated vapor pressure of stabilised crude oil is more obvious under fractionation process. With the same temperature, the quality content of C4 and components below C4 in the stabilized crude oil under positive pressure flash process is much higher, and the rate of change is relatively slower. With the rising of heating temperature, the energy consumption per unit product of stabilised crude oil increases linearly under the two process conditions, and the difference is not obvious. However, the energy consumption per unit product of light hydrocarbon in both processes reduces. Compared with fractionation stabilization process, the energy consumption per unit product of light hydrocarbon under flashing under pressure process is much lower than that under fractionation. Finally, empirical formulae for the variation of indicator parameters with heating temperature were proposed, and the influencing factors on extent of crude oil stabilization were analyzed. The research results can provide reference for the selection and design of crude oil stabilization process in the future.
