**CHRONOLOGICAL LISTING OF SOFTWARE UPDATES**

09/2008 : Launch of www.eq-comp.com with “BUBBLE POINT TEMPERATURE CALCULATION”, “DEW POINT TEMPERATURE CALCULATION”, “PHASE ENVELOPE CALCULATION” and “TWO PHASE COMPOSITION CALCULATION” modules.

01/2010 : Addition of “BUBBLE POINT PRESSURE CALCULATION” and “HYDROCARBON DEW POINT PRESSURE CALCULATION” modules

08/2010 : Addition of LIQ-PROP and HYD-PREDIC softwares

09/2011 : Launch of www.eq-comp.com in new look and feel

09/2011 : Inclusion of temperature dependent BIPs for paraffins, cyclo-paraffins, olefins, di-olefins, aromatics, nitrogen, carbon dioxide and hydrogen sulfide as per PPR-78 equation and user defined BIPs in calculation of EQ-COMP software

09/2011 : Addition of “WATER DEW POINT TEMPERATURE CALCULATION” module

06/2012 : Addition of “LIQUID COMPRESSIBILITY FACTOR CALCULATION”, “VAPOUR COMPRESSIBILITY FACTOR CALCULATION”, “LATENT HEAT CALCULATION” and “BINARY VLE CALCULATION” module

10/2012 : Updation of “LATENT HEAT CALCULATION” module to “THERMODYNAMIC PROPERTIES CALCULATION” module with inclusion of calculation of other thermodynamic properties like entropy, gibbs free energy, specific heats and sonic speed

07/2013 : Updation of LIQ-PROP software to include latent heat calculation

02/2014 : Updation of HYD-PREDIC software to include various crude oil correlations in its calculation

08/2014 : Inclusion of constant BIPs in calculations of EQ-COMP software

08/2014 : Updation of LIQ-PROP software to include other methods of calculation of hydrocarbon liquid density

11/2014 : Addition of “HYDRATE CURVE CALCULATION” module with Methane, Ethane, Propane, n-Butane, i-Butane, Nitrogen, Hydrogen sulfide and Carbon dioxide as possible hydrate formers

02/2015 : Inclusion of Cyclopropane, Ethylene, Propylene, Argon and Oxygen as possible hydrate formers in “HYDRATE CURVE CALCULATION” module

10/2015 : Addition of “MULTICOMPONENT DISTILLATION COLUMN CALCULATION” module

02/2016 : Addition of “PHASE ENVELOPE WITH CO2 FREEZING CURVE CALCULATION” module

04/2016 : Updation of HYD-PREDIC software to Include slippage between liquid and gas phase as per Beggs and Brill correlations and Mukherjee and Brill correlations

04/2016 : Updation of “MULTICOMPONENT DISTILLATION COLUMN CALCULATION” module to calculate overall column efficiency, actual number of trays, column height and column diameter

01/2017 : Inclusion of calculation of hydration number of gas hydrates (number of water molecules associated per molecule of hydrate former) and density of gas hydrates in “HYDRATE CURVE CALCULATION” module

01/2017 : Updation of “HYDRATE CURVE CALCULATION” module to include of effect of hydrate inhibitors like salts (LiCl, NaCl, KCl, CsCl, CaCl2 and MgCl2), salt mixtures, organic liquids (methanol, ethylene glycol, ethanol, 1-propanol, 2-propanol, t-butyl alcohol and glycerol) , sugars (deoxyribose, ribose, fructose, sucrose, glucose and maltose), urea and formamide on hydrate equilibrium/ dissociation curve

02/2017 : IncIusion of hydrogen (H2) as a possible component in the list of non polar and mildly polar hydrocarbons and inorganic gases in various calculation modules of EQ-COMP software

03/2017 : Inclusion of hydrate inhibition effect of salts (NaCl, KCl, CsCl, LiCl, CaCl2 and MgCl2), organic liquids (methanol, ethylene glycol, ethanol, 1 propanol, 2 propanol, t-butyl alcohol and glycerol) and mixtures of salts and organic liquids in calculations of HYD-PREDIC software

04/2017 : Inclusion of upto 40 pseudo components for finding VLE properties in EQ-COMP software

06/2017 : Inclusion of temperature dependent BIPs for paraffins, cyclo-paraffins, olefins, di-olefins, alkynes, aromatics, nitrogen, carbon dioxide, oxygen, argon, hydrogen and hydrogen sulfide as per E-PPR-78 equation in calculations of EQ-COMP software

08/2017 : Updation of “THERMODYNAMIC PROPERTIES CALCULATION” module to include calculation of isobaric thermal expansivity and joule thomson coefficient

12/2017 : Inclusion of temperature dependent BIPs for carbon monoxide (CO) and highly polar compound like ammonia (NH3) as per E-PPR78 equation in various calculation modules of EQ-COMP software

03/2018 : Inclusion of carbon monoxide (CO) and acetylene (C2H2) as hydrate formers in “HYDRATE DISSOCIATION CURVE CALCULATION” module of EQ-COMP software

06/2018 : Inclusion of temperature dependent BIPs for Helium (He) as per E-PPR78 equation in various calculation modules of EQ-COMP software