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Problem 4 1500 kg of reactant A (MW = 200 kg/kmol) is added to 5500 kg of a mixture of organic solvent (MW = 300 kg/kmol) containing 60% excess of a second reactant B (MW = 125 kg/kmol) in a jacketed reaction vessel (R-301), the reactor is sealed, and the mixture is stirred and heated (using steam in the jacket) until the temperature has risen to 95 C. The density of the reacting mixture is 900 kg/m³ (time taken = 1.5 h). a) Find the size of reactor required. b) Find the time to heat the vessel contents from ambient to 95 C. Find the time to heat vessel contents from ambient to 95°C T.=25 C dT pVC, =UA(T, –T) Ts =130 C dt C,= 3000 J/kg C (T, –T In UANt U= 400 W/m2C final , (Т, — Т.) pVC p Tank Height to diameter Ratio = 3/1 (so H = 3D), Vtank THD2 ",A = TDΗ,

Problem 4 1500 kg of reactant A (MW = 200 kg/kmol) is added to 5500 kg of a mixture of organic solvent (MW = 300 kg/kmol) containing 60% excess of a second reactant B (MW = 125 kg/kmol) in a jacketed reaction vessel (R-301), the reactor is sealed, and the mixture is stirred and heated (using steam in the jacket) until the temperature has risen to 95 C. The density of the reacting mixture is 900 kg/m³ (time taken = 1.5 h). a) Find the size of reactor required. b) Find the time to heat the vessel contents from ambient to 95 C. Find the time to heat vessel contents from ambient to 95°C T.=25 C dT pVC, =UA(T, –T) Ts =130 C dt C,= 3000 J/kg C (T, –T In UANt U= 400 W/m2C final , (Т, — Т.) pVC p Tank Height to diameter Ratio = 3/1 (so H = 3D), Vtank THD2 ",A = TDΗ,

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
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Problem 4 1500 kg of reactant A (MW = 200 kg/kmol) is added to 5500 kg of a mixture of organic solvent (MW = 300 kg/kmol) containing 60% excess of a second reactant B (MW = 125 kg/kmol) in a jacketed reaction vessel (R-301), the reactor is sealed, and the mixture is stirred and heated (using steam in the jacket) until the temperature has risen to 95 C. The density of the reacting mixture is 900 kg/m³ (time taken = 1.5 h). a) Find the size of reactor required. b) Find the time to heat the vessel contents from ambient to 95 C. Find the time to heat vessel contents from ambient to 95°C T,=25 C dT :=UA(T, –T) Ts =130 C pVC, dt C= 3000 J/kg C (T, -T mat) In UANt U= 400 W/m²C final , (Т, — Т.) pVC p Tank Height to diameter Ratio = 3/1 (so H = 3D), Vtank THD2 ",A = TDΗ,
Transcribed Image Text:Problem 4 1500 kg of reactant A (MW = 200 kg/kmol) is added to 5500 kg of a mixture of organic solvent (MW = 300 kg/kmol) containing 60% excess of a second reactant B (MW = 125 kg/kmol) in a jacketed reaction vessel (R-301), the reactor is sealed, and the mixture is stirred and heated (using steam in the jacket) until the temperature has risen to 95 C. The density of the reacting mixture is 900 kg/m³ (time taken = 1.5 h). a) Find the size of reactor required. b) Find the time to heat the vessel contents from ambient to 95 C. Find the time to heat vessel contents from ambient to 95°C T,=25 C dT :=UA(T, –T) Ts =130 C pVC, dt C= 3000 J/kg C (T, -T mat) In UANt U= 400 W/m²C final , (Т, — Т.) pVC p Tank Height to diameter Ratio = 3/1 (so H = 3D), Vtank THD2 ",A = TDΗ,
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