共查询到18条相似文献,搜索用时 78 毫秒
1.
采用用户模型技术,将自主开发的17集总反应动力学模型与ASPEN PLUS稳态流程模拟软件集成在一起,从而在ASPEN PLUS平台实现了包含重整反应装置在内的催化重整全流程模拟.这一技术既可以利用ASPEN PLUS强大的数据库、模型库和模拟优化功能,大大拓展模拟范围,又可以保持自定义反应模型的特点.整个流程全部仿照反应动力学模型,将300多种化合物定义成18种集总组分(含氢气),并采用专用于石油系统的物性计算方法.建立的ASPEN PLUS二次开发软件在某连续重整装置上获得了成功应用,模拟结果与实际操作值吻合得相当好,完全满足工业应用的要求.此软件可用于催化重整装置的生产调优、扩能改造和新装置的工艺设计. 相似文献
2.
介绍低温甲醇洗配套的丙烯冷冻站设计的基本原理,用ASPEN PLUS软件进行流程模拟计算,设计工艺流程。分析流程模拟的特点及需要注意的问题,并说明关键设备的选型。 相似文献
4.
5.
6.
7.
ASPEN PLUS10.0版中有较为全面的气液平衡回归出来的二元交互作用参数,文中主要介绍了用该流程模拟软件对离子膜烧碱氯氢处理工序进行物料平衡和热量平衡的计算,并与工厂实际数据进行比较,获得满意的结果。 相似文献
8.
芳烃抽提过程的计算机模拟 总被引:3,自引:0,他引:3
简单介绍了我固芳烃抽提工业生产和市场发生的变化,同时介绍了商用软件在计算芳烃抽提过程中存在的困难.运用ASPEN PLUS过程模拟软件对芳烃抽提单元进行T单塔及全流程的模拟与优化,通过计算机模拟,模拟计算结果与设计值基本吻合,可以用来分析抽提单元和各塔的操作能力和操作问题,指导实际生产探作. 相似文献
9.
利用ASPEN PLUS对无烟煤制代用天然气(SNG)整个工艺流程进行了模拟计算。模拟得到了流程中关键物流的成分、比氧耗、比煤耗,为无烟煤制SNG工艺方案比选、优化设计提供模拟和预测。 相似文献
10.
11.
12.
运用工艺流程模拟软件ASPEN PLUS对炼油厂焦化装置增建100kt/a富气吸收稳定系统进行流程模拟计算,并对重要设计参数进行全系统的联合调试,最终得出满意的设计参数作为施工图设计的依据。 相似文献
13.
《Computers & Chemical Engineering》2001,25(2-3):445-464
Interest in discovering multiple steady-state solutions for reaction and separation processes grew exponentially in the 1990s. Process simulators like ASPEN PLUS, CHEMCAD, HYSYS, and PRO/II are designed to obtain at best one solution. Simulation programs can find multiple solutions only by the expenditure of much effort. Here, a bifurcation technique using arclength continuation is presented that can be incorporated as an add-in subroutine to a simulation program to automatically trace a solution path, including turning points, to obtain multiple solutions with respect to a user-selected parameter. The technique is illustrated with applications to the ASPEN PLUS process simulator. The algorithms are based on a predictor–corrector implementation where the predictors reside in add-in FORTRAN routines and the existing nonlinear equation solvers in ASPEN PLUS equipment models serve as the correctors. Furthermore, the existing physical property packages in ASPEN PLUS are also utilized. The method was tested successfully on an adiabatic CSTR example using the ASPEN RCSTR model, and homogeneous azeotropic, heterogeneous azeotropic, and reactive distillation examples using the ASPEN RADFRAC model. Two of these examples are presented here. In all four examples, the range of the selected bifurcation parameter covers a region that produces three multiple solutions. 相似文献
14.
反应精馏过程中的多稳态分析 总被引:3,自引:0,他引:3
Reactive distillation processes for synthesis of ethylene glycol (EG) and ethyl tert-butyl ether (ETBE) were modeled with the simulation package ASPEN PLUS. The input multiplicity and output multiplicity were discussed with the method of sensitivity analysis for both cases. In EG production process, steady state multiplicities were studied in terms of effective liquid holdup volume and boil-up ratio. In ETBE synthesis process, the user kinetic subroutine was supplied into ASPEN PLUS firstly, and then the composition, temperature and reaction-rate profiles within the reactive distillation column were presented in detail. A set of stable solution branches based on distinct initial guesses for a range of boil-up ratio were found in EG synthesis. Input multiplicities were observed for a range of reboiler duty at several values of reflux ratio for ETBE synthesis process. These results can be used to avoid excessive energy consumption and achieve optimum design of reactive distillation column. 相似文献
15.
流程模拟在低压高密度聚乙烯(HDPE)装置提产改造中的应用 总被引:1,自引:0,他引:1
本文讨论了应用POLYMERSPLUS软件及ASPEN DYNAMICS软件开发HDPE装置反应系统模型的方法以及在提产改造中的应用。 相似文献
16.
应用化工流程模拟软件ASPEN PLUS,对甲醇三塔精馏过程进行模拟,所得结果与生产操作数据基本吻合。对精馏塔的回流比及进料块位置进行了优化,优化后的产量和产品质量都有提高,效益增加1.3%。 相似文献
17.
热偶精馏过程模拟优化方法的改进——人工神经网络-遗传算法 总被引:3,自引:2,他引:1
采用人工神经网络和遗传算法对热偶精馏分离过程提出了一种新的建模方法和优化算法,该方法不仅能够有效地求解热偶精馏过程的数学模型,迅速地得到优化变量和目标函数的解,而且具有获得全局最优解的能力.最后通过实例说明了本方法的有效性. 相似文献