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A gas turbine engine is fueled with 3000 kg/h of methane at 15°C and 1000 kPa, and supplied with ambient air at 15°C. The air and fuel are compressed to 2900 kPa and fed to a combustor. The air flow rate is designed to give a temperature of 1400°C at the outlet of the combustor. The hot gas leaving the combustor is expanded in the turbine. Shaft work produced by the turbine is used to power the two compressors and run a dynamo for generating electricity. Draw a PFD for the process.

A gas turbine engine is fueled with 3000 kg/h of methane at 15°C and 1000 kPa, and supplied with ambient air at 15°C. The air and fuel are compressed to 2900 kPa and fed to a combustor. The air flow rate is designed to give a temperature of 1400°C at the outlet of the combustor. The hot gas leaving the combustor is expanded in the turbine. Shaft work produced by the turbine is used to power the two compressors and run a dynamo for generating electricity. Draw a PFD for the process.

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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8. A gas turbine engine is fueled with 3000 kg/h of methane at 15°C and 1000 kPa, and supplied with ambient air at 15°C. The air and fuel are compressed to 2900 kPa and fed to a combustor. The air flow rate is designed to give a temperature of 1400°C at the outlet of the combustor. The hot gas leaving the combustor is expanded in the turbine. Shaft work produced by the turbine is used to power the two compressors and run a dynamo for generating electricity. Draw a PFD for the process. 9. Compare the cost the following types of heat exchangers, to give a heat transfer area of 20m². Take the construction material as carbon steel. a. Shell and tube b. Double-pipe c. Plate and frame 10. The feed to a distillation column has the following composition, mol per cent: propane 5.0, isobutane 15, n-butane 25, isopentane 20, n-pentane 35, The feed is preheated to a temperature of 90°C, at 8.3 bar pressure. Estimate the compositions of the product liquid and vapour streams. 11. The composition of a feed to a distillation column is given below, if the feed is at a pressure of 14bar and a temperature of -1°C. determine the compositions of the product liquid and vapour streams. Propane Isobutane n-butane isopentane normal pentane normal hexane C3 i-C4 n-C4 i-Cs n-Cs n-C6 kg/h 910 180 270 70 90 20 12. Estimate the capital cost of a plant that produces 80,000 metric tons per year of caprolactam. 13. Estimate the cost of the following equipment: a. A shell and tube heat exchanger, heat transfer area 50m², floating-head type, carbon steel shell, stainless steel tubes, operating pressure 25 bar. b. A kettle reboiler, heat transfer area 25m², carbon steel shell and tubes, operating pressure 10 bar. c. A horizontal, cylindrical, storage tank, 3m diameter, 12m long, used for liquid chlorine at 10 bar, material carbon steel. d. A plate column, diameter 2 m, height 25 m, stainless cląd vessel, 20 stainless steel sieve plates, operating pressure 5 bar. 3 CS CamScanner
Transcribed Image Text:8. A gas turbine engine is fueled with 3000 kg/h of methane at 15°C and 1000 kPa, and supplied with ambient air at 15°C. The air and fuel are compressed to 2900 kPa and fed to a combustor. The air flow rate is designed to give a temperature of 1400°C at the outlet of the combustor. The hot gas leaving the combustor is expanded in the turbine. Shaft work produced by the turbine is used to power the two compressors and run a dynamo for generating electricity. Draw a PFD for the process. 9. Compare the cost the following types of heat exchangers, to give a heat transfer area of 20m². Take the construction material as carbon steel. a. Shell and tube b. Double-pipe c. Plate and frame 10. The feed to a distillation column has the following composition, mol per cent: propane 5.0, isobutane 15, n-butane 25, isopentane 20, n-pentane 35, The feed is preheated to a temperature of 90°C, at 8.3 bar pressure. Estimate the compositions of the product liquid and vapour streams. 11. The composition of a feed to a distillation column is given below, if the feed is at a pressure of 14bar and a temperature of -1°C. determine the compositions of the product liquid and vapour streams. Propane Isobutane n-butane isopentane normal pentane normal hexane C3 i-C4 n-C4 i-Cs n-Cs n-C6 kg/h 910 180 270 70 90 20 12. Estimate the capital cost of a plant that produces 80,000 metric tons per year of caprolactam. 13. Estimate the cost of the following equipment: a. A shell and tube heat exchanger, heat transfer area 50m², floating-head type, carbon steel shell, stainless steel tubes, operating pressure 25 bar. b. A kettle reboiler, heat transfer area 25m², carbon steel shell and tubes, operating pressure 10 bar. c. A horizontal, cylindrical, storage tank, 3m diameter, 12m long, used for liquid chlorine at 10 bar, material carbon steel. d. A plate column, diameter 2 m, height 25 m, stainless cląd vessel, 20 stainless steel sieve plates, operating pressure 5 bar. 3 CS CamScanner
" 30.1 6. Monochlorobenzene is produced by the reaction of benzene with chlorine. A mixture of monochlorobenzene and dichlorobenzene is produced, with a small amount of trichlorobenzene. Hydrogen chloride is produced as a byproduct. Benzene is fed to the reactor in excess to promote the production of monochlorobenzene. The reactor products are fed to a condenser where the chlorobenzenes and unreacted benzene are condensed. The condensate is separated from the noncondensable gases in a separator. The non-condensables, hydrogen chloride and unreacted chlorine, pass to an absorption column where the hydrogen chloride is absorbed in water. The chlorine leaving the absorber is recycled to the reactor. The liquid phase from the separator, chlorobenzenes and unreacted benzene, is fed to a distillation column, where the chlorobenzenes are separated from the unreacted benzene. The benzene is recycle to the reactor. Using the data given below draw up Process Flow Diagram (PFD) for the process. 7. Methyl tertiary butyl ether (MTBE) is used as an anti-knock additive in petrol (gasoline). It is manufactured by the reaction of isobutene with methanol. The reaction is highly selective and practically any C4 stream containing isobutene can be used as a feedstock, A 10 per cent excess of methanol is used to suppress side reactions. In a typical process, the conversion of isobutene in the reactor stage is 97 per cent. The product is separated from the unreacted methanol and any C4's by distillation. The essentially pure, liquid, MTRE leaves the base of the distillation column and is sent to storage. The methanol and C4's leave the top of the column as vapour and pass to a column where the methanol is separated by absorption in water. The C4's leave the top of the absorption column, saturated with water, and are used as a fuel gas. The methanol is separated from the water solvent by distillation and recycled to the reactor stage. The water, which leaves the base of the column, is recycled to the absorption column. A purge is taken from the water recycle stream to prevent the build-up of impurities. Draw a Process Flow Diagram (PFD) for the process.
Transcribed Image Text:" 30.1 6. Monochlorobenzene is produced by the reaction of benzene with chlorine. A mixture of monochlorobenzene and dichlorobenzene is produced, with a small amount of trichlorobenzene. Hydrogen chloride is produced as a byproduct. Benzene is fed to the reactor in excess to promote the production of monochlorobenzene. The reactor products are fed to a condenser where the chlorobenzenes and unreacted benzene are condensed. The condensate is separated from the noncondensable gases in a separator. The non-condensables, hydrogen chloride and unreacted chlorine, pass to an absorption column where the hydrogen chloride is absorbed in water. The chlorine leaving the absorber is recycled to the reactor. The liquid phase from the separator, chlorobenzenes and unreacted benzene, is fed to a distillation column, where the chlorobenzenes are separated from the unreacted benzene. The benzene is recycle to the reactor. Using the data given below draw up Process Flow Diagram (PFD) for the process. 7. Methyl tertiary butyl ether (MTBE) is used as an anti-knock additive in petrol (gasoline). It is manufactured by the reaction of isobutene with methanol. The reaction is highly selective and practically any C4 stream containing isobutene can be used as a feedstock, A 10 per cent excess of methanol is used to suppress side reactions. In a typical process, the conversion of isobutene in the reactor stage is 97 per cent. The product is separated from the unreacted methanol and any C4's by distillation. The essentially pure, liquid, MTRE leaves the base of the distillation column and is sent to storage. The methanol and C4's leave the top of the column as vapour and pass to a column where the methanol is separated by absorption in water. The C4's leave the top of the absorption column, saturated with water, and are used as a fuel gas. The methanol is separated from the water solvent by distillation and recycled to the reactor stage. The water, which leaves the base of the column, is recycled to the absorption column. A purge is taken from the water recycle stream to prevent the build-up of impurities. Draw a Process Flow Diagram (PFD) for the process.
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