企业培训-Hysys培训模拟基础 精品

Chien Null Provides a consistent framework for applying existing
Activity Models on a binary by binary basis. It allows you to select the
best Activity Model for each pair in your case
components. where you require simultaneous solution of VLE and LLE,
and there exists a wide boiling point or concentration range between
components.
Margules： This was the first Gibbs excess energy representation
Peng-Robinson： This model is ideal for VLE calculations as well as calculating liquid densities for hydrocarbon systems. Several enhancements to the original PR model were made to extend its range of applicability and to improve its predictions for some non-ideal systems. However, in situations where highly non-ideal systems are encountered, the use of Activity Models is recommended.
EOS
Description
BWRS This model is commonly used for compression applications and studies. It is specifically used for gas phase components that handle the complex thermodynamics that occur during compression and is useful in both upstream and downstream industries.
UNIQUAC：Uses statistical mechanics and the quasi-chemical theory of Guggenheim to represent the liquid structure. The equation is capable of representing LLE, VLE, and VLLE with accuracy comparable to the NRTL equation, but without the need for a nonrandomness factor.
热力学方法
PR：〉-271C，〈1000Bar SRK > -143C, <359Bar 半经验模型：
CS （Chao – Seader) -18C – 260, < 100Bar GS ( Grayson - Streed) -18C – 425, < 200Bar GS是在CS的基础上发展起来的尤其适合高含氢系统。采用Lee-Kesler方法 计算系统的焓值。GS可用于高氢的加氢系统（CH4的含量<30% mol） PRSV：可处理弱极性体系，可对油品含H2O, CH3OH,甘醇等体系进行严 格3相闪蒸计算 Twu-Sim-Tassone (TST):也是立方型状态方程。可用于处理原油系统或高 度非理想系统 Kabadi Danner：是SRK方程的修正改进型。在烃-水系统的3相平衡方面有 很大改善，尤其是在稀溶液方面。 Sour- PR/Sour SRK：考虑了碱（NaOH），羧基酸存在的体系，能够计算 OH-、H+、HS-的离子浓度对CO2、H2S、和NH3溶液溶解度的影响。将 状态方程和Wilson API-酸性模型结合起来，处理酸水系统
Lee-Kesler Plocker：This model is the most accurate general method for nonpolar substances and mixtures.
MBWR： This is a modified version of the original Benedict/Webb/Rubin equation. This 32-term equation of state model is applicable for only a specific set of components and operating conditwenku.baidu.comons.
Sour PR： Combines the PR equation of state and Wilson's API-Sour Model for handling sour water systems.
Sour SRK： Combines the Soave Redlich Kwong and Wilson's APISour Model.
PR-Twu： This model is based on Peng-Robinson and incorporates the Twu EoS Alpha function for improved vapor pressure prediction of all Aspen HYSYS library components.
Extended NRTL： This variation of the NRTL model allows you to
input values for the Aij, Bij, Cij, Alp1ijand Alp2ijparameters used in
defining the component activity coefficients. Apply this model to systems
Aspen Hysys
第一章
启动模拟
主要内容：启动模拟模块介绍创建HYSYS 模拟所必需的一些基本概念。 在本章中定义3个气体物流，他们将用作气体加工厂的进料。另外，要 在此学习怎样通过使用相图和Utilities工具确定物流的属性。
学习目的 1、HYSYS 结构和界面 2、定义流体包（物性包，组分，虚拟组分） 3、修改/自定义单位集 4、添加物流 5、理解闪蒸计算 6、使用物流公用工具 （相图，属性表) 7、自定义工作薄
General NRTL： This variation of the NRTL model allows you to
select the equation format for equation parameters: and .τ α Apply this
model to systems:
with a wide boiling point range between
GCEOS This model allows you to define and implement your own generalized cubic equation of state including mixing rules and volume translation.
Glycol PPkg Glycol property package contains the TST (Twu-SimTassone) equation of state to determine the phase behaviour more accurately and consistently for the TEG-water mixture.
van Laar：This equation fits many systems quite well, particularly for LLE component distributions. It can be used for systems that exhibit positive or negative deviations from Raoult's Law, however, it cannot predict maxima or minima in the activity coefficient. Therefore it generally performs poorly for systems with halogenated hydrocarbons and alcohols.
SRK-Twu： This model is based on SRK and incorporates the Twu
Twu-Sim-Tassone：This model uses a new volume function for improved liquid molar volume predictions for mid range and heavy hydrocarbons and incorporates the Twu EoS Alpha function for improved vapor pressure prediction of all Aspen HYSYS library components.
developed. The equation does not have any theoretical basis, but is useful
for quick estimates and data interpolation.
NRTL：This is an extension of the Wilson equation. It uses statistical mechanics and the liquid cell theory to represent the liquid structure. It is capable of representing VLE, LLE, and VLLE phase behaviour.
SRK： In many cases it provides comparable results to PR, but its range of application is significantly more limited. This method is not as reliable for non-ideal systems.
with a wide boiling point range between components where you require
simultaneous solution of VLE and LLE, and there exists a wide boiling
point range or concentration range between components.
PRSV： This is a two-fold modification of the PR equation of state that extends the application of the original PR method for moderately non-ideal systems.
Kabadi Danner This model is a modification of the original SRK equation of state, enhanced to improve the vapour-liquid-liquid equilibria calculations for water-hydrocarbon systems, particularly in dilute regions.
Zudkevitch Joffee Modification of the Redlich Kwong equation of state. This model has been enhanced for better prediction of vapourliquid equilibria for hydrocarbon systems, and systems containing Hydrogen.