Bisulfite liquor having 81% FeS2, in a burner together with excess air. The burnergas, 5.84% SO2, 9.72% O2 and 84.44% N2, enters the absorption tower charged withlime, 82% CaQ. 16% MgO and 2% inerts. The liquor produced hold 7.05% SO2,1.15% of it is "free" and the rest as bisulfites. The cinder exiting the burner contains8.29% FeS2 and 3.81% SO3.Assume that no conversion takes place in the tower and only O2 and N2 is in thewaste gas.a) What is the kg pyrites/kmol of burner gas?b) What is the kg of SO3 in the cinder per kmol of burner gas?c) What is the kg of bisulfite liquor per kg of pyrite?

Given that, the bisulfite liquor has- FeS2 =81% Gangue=19% The orsat analysis of the burner gas (BG)…

Answered: Bisulfite liquor having 81% FeS2, in a…

Introduction to Chemical Engineering Thermodynamics

8th Edition

ISBN:9781259696527

Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart

Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart

Chapter1: Introduction

Section: Chapter Questions

Problem 1.1P

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Please answer in other solution A pure saturated hydrocarbon is burnt with excess air. Orsat analysis of the stack gas shows 7.9%, 1.18% CO, 0.24% H2, 5.25% O2, and 85.93% N2. Airis substantially dry. The stack gases leave at 750 mm Hg pressure. Calculate: (a) % excess air (b) kg air/kg fuel (c) Formula of the hydrocarbon (d) Dew point of the stack gas
The combustion gases from an industrial furnace using a hydrocarbon fuel and dry air enter the stack gas at normal barometric pressure and 3750F and have the following Orsat analysis: 12.2% CO2, 3.1% O2, 1.2% CO, and 83.5% N2. Determine the following: 1. The atomic ratio of hydrogen to carbon in the fuel 2. The mol of stack gas per atom of carbon burnt
6. A hydrocarbon is burned with dry air. There is no atomic oxygen or water in the fuel. Analysis of the flue gas from a power plant results in the following mole percentages on a dry basis: 83.7% nitrogen, 8.83% carbon dioxide, 6.1% oxygen, and 1.33% carbon monoxide. The mole fraction of water in the total flue gas is equal to 0.113. Calculate the molar ratio of H to C in the fuel and the alkane to which that ratio corresponds.
Groundwater contaminated with 1,1,1-trichloroethane (TCA) is to be air-stripped at 25°C and 1.1 bar pressure at a rate of 9000 kg/h. The feed water has 600 ppm of the VOC. A stripping column of suitable diameter with eight trays having 40% overall efficiency is available. The exit stripping air must not contain more than 2.5% TCA by volume. The equilibrium relation is y = 950 x. Calculate the percentage removal of TCA achievable in the column. Typed solution is needed here..
Consider 500mL of a benzene-hexane mixture at 50°C containing 30% of the more volatile. a) Determine the temperature region for the phase change of the mixture. b)If the mixture is heated until the liquid and vapor phases are in equal proportion (50% liquid - 50% vapor), determine the temperature of the system and the mole fractions of each phase.
A saturated-liquid mixture of 70 mol% benzene and 30 mol%toluene, whose relative volatility is 2.5, is to be distilled at 1 atm to produce a distillate of 80 mol% benzene.Continuous distillation in a column containing the equivalent of two equilibrium plates. The feed is sent to the direct-heated still, from which residue is withdrawn continuously. The vapors from the top plate enter the top of a helically coiled partial condenser that discharges into a trap.The liquid from the trap is returned tothe bottom platewhile the uncondensed vapor is condensedto a distillate containing 80 mol% benzene. The molar ratio of reflux to product is 0.5. Calculate and tabulate: (a) moles of distillate per 100 moles of feed, (b) moles of total vapor generated per mole of distillate, and (c) mol% benzene in the residue. (d) For each part, construct a y–x diagram. On this, indicate the compositions of the overhead product, the reflux, and thecomposition of the residue.
Example. 6.3.How much heat has to be added to a solution of 1g mol of HCl in H2O to concentrate the solution to 1 g mol of HCl in 4 g mol of H,0? g mol of
Potassium fluotitanate (K₂TiF₆), a starting material forproducing other titanium salts, is made by dissolvingtitanium(IV) oxide in concentrated HF, adding aqueous KF, andthen heating to dryness to drive off excess HF. The impure solidis recrystallized by dissolving in hot water and then cooling to 0°C, which leaves excess KF in solution. For the reaction of 5.00 g of TiO₂, 250. mL of hot water is used to recrystallize theproduct. How many grams of purified K₂TiF₆ are obtained?(Solubility of K₂TiF₆ in water at 0°C is 0.60 g/100)
26.3-4. Steam Distillation of Ethylaniline. A mixture contains 100 kg of H20 and 100 kg of ethylaniline (mol wt 121.1 kg/kg mol), which is immiscible with water. A very slight amount of a nonvolatile impurity is dissolved in the organic. To purify the eth- ylaniline, it is steam-distilled by bubbling saturated steam into the mixture at a total pressure of 101.32 kPa (1 atm). Determine the boiling point of the mixture and the composition of the vapor. The vapor pressure of each of the pure compounds is follows (T1): (XC Тетрerature PA (water) (kPa) PB (ethylaniline) (kPa) E400 В °C K 1.33 48.5 80.6 353.8 2.67 87.7 96.0 369.2 3.04 98.3 99.15 372.3 5.33 163.3 113.2 386.4 SCE 65
A saturated-liquid mixture of 70 mol% benzene and 30 mol% toluene, whose relative volatility is 2.5, is to be distilled at 1 atm to produce a distillate of 80 mol% benzene.Continuous distillation in a column containing the equivalent of two equilibrium plates. The feed is sent to the direct-heated still, from which residue is withdrawn continuously. The vapors from the top plate enter the top of a helically coiled partial condenser that discharges into a trap. The liquid from the trap is returned to the top plate (refluxed), while the uncondensed vapor is condensedto a distillate containing 80 mol% benzene. The molar ratio of reflux to product is 0.5.Calculate and tabulate: (a) moles of distillate per 100 moles of feed, (b) moles of total vapor generated per mole of distillate, and (c) mol% benzene in the residue. (d) For each part, construct a y–x diagram. On this, indicate the compositions of the overhead product, the reflux, and the composition of the residue.
Q1/ A gas at 170 atm and 149 °C consists of (80% methane, 18% ethane, 1% propane and 1% carbon dioxide). Determine the composition in mole fraction.
100 moles of benzene (CH) and 100 moles of toluene (CH) undergo complete combustion in 50% excess air. Air may be considered as a mixture of Oxygen 21 mol% (0₂) and 79 mol % Nitrogen (N₂). Calculate: (a) (b) the theoretical oxygen required. the mole fraction of O₂ after the end of combustion, both on a wet basis and a dry basis.

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