| 1.33 kPa绝压下石油馏分蒸馏曲线换算的数学模型 |
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| 引用本文： | 曹睿,王俊,刘艳升,严超宇,蒋荣兴.1.33 kPa绝压下石油馏分蒸馏曲线换算的数学模型[J].计算机与应用化学,2010,27(4). |
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| 作者姓名： | 曹睿 王俊 刘艳升 严超宇 蒋荣兴 |
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| 作者单位： | 1. 中国石油大学(北京)化学科学与工程学院,北京,102249
2. 中国石化建设工程公司,北京,100101 |
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| 摘 要： | 石油馏分的恩氏蒸馏、实沸点蒸馏和平衡汽化曲线是石油加工工艺计算必不可少的基础数据,也是制定原油加工方案、炼油厂调整和控制生产的根据。本文将1.33 kPa绝压下的恩氏蒸馏曲线和实沸点蒸馏曲线分别与平衡汽化曲线的换算图表回归,开发出了1套便于应用的新换算模型。该模型可为计算各种油品物性、相平衡关系以及进行原油评价等提供基础数据,有助于提高设计和控制精度。新模型采用拟多项式的非线性函数,可以直接进行双向计算,稳定性高。恩氏蒸馏和实沸点蒸馏与平衡汽化曲线的50%馏出点换算模型的最大相对误差分别为1.02%和1.03%。用2个体系的实测数据验证该模型,体系1新模型的最大相对误差为0.37%,文献模型为4.50%,体系2新模型的最大相对误差为1.37%,文献模型为1.53%。结果表明新模型与实测数据吻合较好,计算精度优于文献模型。
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| 关 键 词： | 数学模型 1.33 kPa绝压 恩氏蒸馏 实沸点蒸馏 平衡汽化 |
Mathematical model of interconversion among ASTM,TBP and EFV curves for petroleum fractions at an absolute pressure of 1.33 kPa |
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| Cao Rui,Wang Jun,Liu Yansheng,Yan Chaoyu,Jiang Rongxing.Mathematical model of interconversion among ASTM,TBP and EFV curves for petroleum fractions at an absolute pressure of 1.33 kPa[J].Computers and Applied Chemistry,2010,27(4). |
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| Authors: | Cao Rui Wang Jun Liu Yansheng Yan Chaoyu Jiang Rongxing |
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| Affiliation: | 1*;1.Faculty of Chemical Science and Engineering/a>;China University of Petroleum/a>;Beijing/a>;102249/a>;China/a>;2.SINOPEC Engineering Incorporation/a>;100101/a>;China |
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| Abstract: | The ASTM,TBP and EFV distillation curves of petroleum fractions are essential data necessarily to petroleum refining process,and they are also the foundation to select processing scheme for crude oil,adjust and control production.The diagrams of interconversion between ASTM and EFV curves and ones between TBP and EFV curves at an absolute pressure of 1.33 kPa were regressed in this paper.Based on the diagrammatical data,the new mathematical models were proposed.It can conveniently provide the basic data for... |
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