Using Thermodynamics and Simulations to Understand Selectivity and Retention in Gas Chromatography

hazard evaluation of gas condensate stabilization and dehydration unit of parsian gas refinery using hazop procedures

شناسایی مخاطرات در واحد 400 پالایشگاه گاز پارسیان. در این پروزه با بکارگیری از تکنیک hazop به شناسا یی مخاطرات ، انحرافات ممکن و در صورت لزوم ارایه راهکارهای مناسب جهت افزایش ایمنی فرا یند پرداخته میگردد. شرایط عملیاتی مخاطره آمیز نظیر فشار و دمای بالا و وجود ترکیبات مختلف سمی و قابل انفجار در واحدهای پالایش گاز، ضرورت توجه به موارد ایمنی در این چنین واحدهایی را مشخص می سازد. مطالعه hazop یک ر...

EFFECTS OF TEMPERATURE AND PERCENTAGE OF ORGANIC MODIFIER ON RETENTION AND SELECTIVITY IN RP-HPLC USING SOLVATION PARAMETER MODEL

Effects of temperature and percentage of organic modifier were studied on retention and selectivity in RP-HPLC using solvation parameter model. The system constants were determined by multiple linear regression analysis from experimental values in the retention factor for a group of different solutes with known descriptors by computer using the program SPSS/PC. The experimental results showed t...

Thermodynamics Simulations Applied to Gas-Solid Materials Fabrication Processes

Gas Chromatography I. Retention, Efficiency and Resolution Purpose

Purpose In this experiment you will examine the effect of temperature on retention in isothermal gas chromatography, and use this information to determine the heat of solution of the solute in the stationary phase and to determine the temperature for optimum retention. You will also examine the effect of flow rate on efficiency and construct a van Deemter plot, and determine the flow rate for o...

Steady-State and Dynamic Simulations of Gas Absorption Column Using MATLAB and SIMULINK

Separation is one of the most important process in all the chemical industries and the gas absorption is the simplest example of separation process which is generally used for the absorption of dilute components from a gaseous mixture. In the present work, a dynamic system of mathematical equation (algebraic and differential) is modeled to predict the behavior of the absorption column using mat...