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1. An inspector files a report against a factory owner charging him that CO2content in the gases leaving the chimney rises above 15% being dangerous to the health and against city code. The factory owner burns natural gas containing 100% CHand the air supply is adjusted to provide 130% excess air. Is the inspector's charges correct?

1. An inspector files a report against a factory owner charging him that CO2content in the gases leaving the chimney rises above 15% being dangerous to the health and against city code. The factory owner burns natural gas containing 100% CHand the air supply is adjusted to provide 130% excess air. Is the inspector's charges correct?

Introduction to Chemical Engineering Thermodynamics
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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1. An inspector files a report against a factory owner charging him that CO2content in the gases leaving the chimney rises above 15% being dangerous to the health and against city code. The factory owner burns natural gas containing 100% CHąand the air supply is adjusted to provide 130% excess air. Is the inspector's charges correct? 2. The gas phase reaction A→2B+C takes place isothermally in a constant pressure reactor. Starting with a feed containing 75% A and 25% inerts (volume basis), in a specified time the volume doubles. Compute the percentage conversion of A achieved. 3. (a). In the manufacture of Sulphur trioxide, the feed to a reactor consists of 50 kmol SO2 and 150 kmol air. Calculate the percentage excess of the air used? (b). What is the requirement of recycling operation in process and chemical industries? 4. Methanol is produced by the reaction of Co with H2according to the equation: CO+H2>CH3OH. Only 15% of the CO entering the reactor is converted to methanol. The methanol product is condensed and separated from the unreacted gases, which are recycled. The feed of the reactor contains 2 moles of H2 per mole of CO. the fresh feed enters at 35°C and 300atm. To produce 6600 kg/hr of methanol, calculate: (a). Volume of the fresh feed gas (b). The recycle ratio 5. The waste acid in a nitrating process contains 11.3% HNO3,44.4% H2SO4 and 44.3% H2O by weight. This is to be concentrated to contain 32% HNO3 and 60% H2SO4 by weight by adding concentrated nitric acid containing 92% by weight HNO3 and concentrated sulphuric acid containing 98% of H2SO4 by weight. Calculate the weight of the waste acid and the concentrated acids to be combined to obtain 3000 kg of desired mixture. -END-
Transcribed Image Text:1. An inspector files a report against a factory owner charging him that CO2content in the gases leaving the chimney rises above 15% being dangerous to the health and against city code. The factory owner burns natural gas containing 100% CHąand the air supply is adjusted to provide 130% excess air. Is the inspector's charges correct? 2. The gas phase reaction A→2B+C takes place isothermally in a constant pressure reactor. Starting with a feed containing 75% A and 25% inerts (volume basis), in a specified time the volume doubles. Compute the percentage conversion of A achieved. 3. (a). In the manufacture of Sulphur trioxide, the feed to a reactor consists of 50 kmol SO2 and 150 kmol air. Calculate the percentage excess of the air used? (b). What is the requirement of recycling operation in process and chemical industries? 4. Methanol is produced by the reaction of Co with H2according to the equation: CO+H2>CH3OH. Only 15% of the CO entering the reactor is converted to methanol. The methanol product is condensed and separated from the unreacted gases, which are recycled. The feed of the reactor contains 2 moles of H2 per mole of CO. the fresh feed enters at 35°C and 300atm. To produce 6600 kg/hr of methanol, calculate: (a). Volume of the fresh feed gas (b). The recycle ratio 5. The waste acid in a nitrating process contains 11.3% HNO3,44.4% H2SO4 and 44.3% H2O by weight. This is to be concentrated to contain 32% HNO3 and 60% H2SO4 by weight by adding concentrated nitric acid containing 92% by weight HNO3 and concentrated sulphuric acid containing 98% of H2SO4 by weight. Calculate the weight of the waste acid and the concentrated acids to be combined to obtain 3000 kg of desired mixture. -END-
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