原油常减压蒸馏过程流程模拟.pdf

第20卷第2期
石油化.高等学校学报
Vo 20 No. 2
2007年6
JOURNAL F PETROCTEMIICAI UNVERSHTTES
Jun.2007
文章编号:106-396X(200702-0034-06
原油常减压蒸馏过程流程模拟
葛玉林2,沈胜强
(1.人迕理工人学能源与动力学院,辽予大连116024:2.锦州石油化工公同设计院,辽锦州121001)
摘要:在现有原油常减压装置基础上进行了扩容改造,为了验让扩容后的常减压装置能否满足工艺要求
需要対流程进行调整。基」蒸馏原理対常减床蒸馏塔建立包含质量平衡、相平衡、摩尔分数归一化和能量平衡等
方程构成的MFSH模型,在Pro/I平台上进行流稈模拟,获得各塔侧线产品的温度和圧力等关键参数,并与呪场工
艺要求进行对比。流程模拟结果与现场艺要求吻合良好,说明模犁可靠,流程满足艺要求。各馏塔温度和气
液流量沿塔板数的分布側形图反映进出口物料和中段冷却循环対蒸懈过稈的影响。
关健词:原油;常诚压烝馏;流程模拟
中图分类号:1Q342.206;1IP311.56
文献标识码:A
Flow Simulation of Atmo sp here-vacuum Distillation for Crude Oil
GE: Yu-lin", SIITEN Sheng-qiang
(1. Schoo/ of Lnergy and Power Lngimeerin Dalian University of Technology, Dalian Liaoning 116024, 1. R. China,
2. Design Institute of inzhou Pe/rochemical Corporation, inz hou 1.ioning 121001, P. R. China
Received 8 anuary 2007: revised 1 1 pri 2007, accepted 18 pril 2007
Abstract New flow was necd to be rearranged in order Lo salis y the requiremcnt o[ Technolo gy duc to the reconstruction of
almosp here- vacuum distillation equip ment for enlarging working ability in Lhe prescnt condition. Based on the Fundamental ol
distillation, MESH model including equations of mass balance, phase equilibrium, mole fraction summations and heat balance
for atmo sp here -vacuum distillation column was cstablished. The key parameter such as temperature and pressure of product
as obtained thro ugh solulion of the model on Pro/I platorm. The comparison of simulation results with requirement of spol
technology was anal yzed. ( nod agreement between the results of simulation and requirement of spot technology approves that
the mo del is valid and the rearrangement of Tlow salislics the requirement ol technolo gy. The proliles of tcmperature and ralc o
vapor and liquid versus tray number reflect the influence of feeds, pro ducts, and cooling cycle in the Middle of columns on
process of distillation very wcl
Key words: Crude oil, Atmo sp here-vacuum distillation; Flow simulation
Corresponding aut hor. Tel: 86-411-84707963: fax: I 86-4l1-84707963 e-mail: wp2006adlut edu cn
流程模拟是化工系统工程中最基本的技术之型米描述其T.艺流程中状态参数的分布情
,无论是过程系统的分析和优化,还是过況6,。木文拟在蒸馏原埋的基础上,建立稳
系统的综合,都是以流模拟为基础的”?。稳原油常减压蒸馏过程的MES丑模型,在Pro/m平
心沇梨与时间无关,是化工流稞模拟中应用最为普台上对模型进行求解,获得各侧线产品的蒸馏参数
遍的重要技术之·,需要立质量平衡、相平衡、摩以及各蒸馏塔的温度和气液流量沿塔板数的分布情
尔分数归化和能量平衡等(MLSI1Mass况。
balances. Equilibrium Relations, molc fraction
Summations and licat balances)方稈构成的数学模
1原油常减压蒸馏工艺
收稿日期:2007-01-08
图1为常减压蒸馏工艺流程。混合原油出
作者简介:葛工林(1963-)、男,山东口照市、高级⊥程师博ALH, AI SHL, ADUBA和AISD4种原油以及
水S23通过混合器M1述行混合获得。原油物料经
基金项目:辽宁省科技攻关项目(2005224001)。
过换热器1QIIR和换热器TI1R加热到“定的
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