For your feasibility study, your adviser assigned you to a power plant that makes use of coal as its fuel for energy. The coal used by this power plant has a proximate analysis of 32% VCM, 53% FC, and 10% ash. The N and S content is 1.2% and 6.2%, respectively. The air used needs to be supplied 150% in excess so that the CO2 produced has a molar ratio of 5:1 with CO in the stack gas. The coal produces 23.78MJ of heat for every kilogram of it burnt.You need to design the boiler used by the industry and decided that the air would be easier supplied in terms of m3. How much air would be expected per kg of coal? Assume that the air is at 25°C, 750 mmHg.In order to properly create an equipment for air pollutant control. What stack gas analysis would be expected from the combustion process? How much stack gas will be produced in m3 per kg of coal. The stack is assumed to be at 240°C, 770 mmHg.

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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

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For your feasibility study, your adviser assigned you to a power plant that makes use of coal as its fuel for energy. The coal used by this power plant has a proximate analysis of 32% VCM, 53% FC, and 10% ash. The N and S content is 1.2% and 6.2%, respectively. The air used needs to be supplied 150% in excess so that the CO₂ produced has a molar ratio of 5:1 with CO in the stack gas. The coal produces 23.78MJ of heat for every kilogram of it burnt.
1. You need to design the boiler used by the industry and decided that the air would be easier supplied in terms of m³. How much air would be expected per kg of coal? Assume that the air is at 25°C, 750 mmHg.
2. In order to properly create an equipment for air pollutant control. What stack gas analysis would be expected from the combustion process? How much stack gas will be produced in m³ per kg of coal. The stack is assumed to be at 240°C, 770 mmHg.

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