Exercise DP.1: Estimating Pure Component Properties in Hysys Workshop Report Requirements: 1. Create a graph of the vapor pressure in psia of cyclohexanol‚ cyclohexanol and high boiler as a function of temperature from 50 to 450 F. Print and submit these graphs. 2. Compare the pure component critical properties ( Critical Temperature‚ Critical Pressure) given in the design problem statement against the values used by Hysys. ( To view properties of a component‚ View the Basis Environment
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4.184 j (Joule). At the event that the molecules are prevented from escaping‚ the vapor pressure in the liquid rises. This vapor pressure is directly proportional to concentration of water molecules as vapor in the air above the liquid. The higher the vapor pressure‚ the more water molecules will re-enter the liquid. Eventually‚ equilibrium is reached when the vapor pressure becomes equal to saturated vapor pressure. Because above the earth we have the atmosphere‚ it is always possible for water
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CHAPTER 1 PRODUCTION 236250 TONNES PER YEAR OF ACETONE 1.0 INTRODUCTION Acetone is a clear‚ colorless‚ volatile liquid with sweer odor. It is both the simples aliphatic ketone and the most commercially important. It has a distinctive fruity or mint-like odor and a pungent taste. It is also found naturally in plants‚ tress‚ volcanic gases‚ and forest fires and as a by product of the breakdown of body fat. Nearly all world production of acetone is via cumene peroxidation‚ as a coproduct with
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57. Toluene‚ C6H5CH3‚ is a liquid used in the manufacture of TNT. Its normal boiling point is 111.0°C‚ and its molar heat of vaporization is 35.9 kJ/mol. What would be the vapor pressure (torr) of toluene at 75.00°C? 73. ▲ ■ (a) How many triple points are there for sulfur? (b) Indicate the approximate pressure and temperature at each triple point. (c) Which phases are in equilibrium at each triple point? 81. ■ Based only on their formulas‚ classify each of the following in the solid
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a compound A‚ with vapor pressure 400mmHg at 50oC‚ mixed with 3 moles of compound B‚ with vapor pressure 480mmHg at 50oC to form a homogeneous solution. What is the vapor pressure of mixture at 50oC? XA =moles of A\total No. of moles XA =1\4 XB=3\4 Ptotal=PAoXA+PBoXB =400*1\4 + 480*3\4 = 460mmHg 2. Why should a distilling flask be filled not less than 1\3 filled or more than 2\3 full? This is to allow the liquid being heated room to expand as it turns to a vapor. Also‚ 1\3 would
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and the pressures of the entrained vapor‚ motive steam and compressed vapor. Also‚ correlations are developed for the motive steam pressure at the nozzle exit as a function of the evaporator and condenser pressures and the area ratios as a function of the entrainment ratio and the stream pressures. This allows for full design of the ejector‚ where defining the ejector load and the pressures of the motive steam‚ evaporator and condenser gives the entrainment ratio‚ the motive steam pressure at the
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freezing point of water‚ which the standard is usually 0°C. This is the point in which water and ice are at equilibrium. The freezing point Tf°‚ the vapor pressure of water and ice must be equal. If you add a soluble liquid or solid to the equilibrium mixture‚ the temperature of the ice and the solution will fall until it reaches equilibrium. The vapor pressure of water at 0°C is less than that of a pure liquid. The temperature of the new solution will change the in which it reaches equilibrium or the
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total vapour pressure of ideal or non-ideal mixtures of two volatile liquids as a function of chemical composition. Introduction: For ideal mixtures of volatile liquids the vapour pressure of any given mixture may be obtained by applying Raoult ’s Law to each of the components of the mixture. If‚ for example‚ pA* and pB* are the vapour pressures of pure compound A and B respectively‚ and A and B are their mole fractions in a particular mixture‚ then the partial vapour pressures of each component
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compositions is determined based on the properties of Reid vapor pressure and the distillation curve (57). 3.1.1 Reid Vapor Pressure The vapor pressure of gasoline is a fundamental physicochemical property to the level of emission of volatile compounds in the gasoline supply system and in the combustion process‚ especially in starting the
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used for the biogasoline analysis. Biogasoline catalytic cracking process requires detailed qualitative and quantitative analysis of the hydrocarbon composition of its oil and fraction. In this analysis‚ their fractional composition‚ saturated vapor pressure‚ density and antiknock rating will be investigated. By knowing the qualitative and quantitative composition of the gasolines‚ the content of n-paraffin‚ isoparaffin‚ aromatic‚ naphthene‚ and olefin (PIANO) groups of hydrocarbons as well as of
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