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Water vapour (V) Recycle (R) 0.6 kg KNO3 The water (M) Mixer Evaporator Crystallizer s0 wt. NKNO Feed (F) - 1000 kg/hr 19 wt. % KNO3 95 wt. % KNO3 Crystals (C) E

Water vapour (V) Recycle (R) 0.6 kg KNO3 The water (M) Mixer Evaporator Crystallizer s0 wt. NKNO Feed (F) - 1000 kg/hr 19 wt. % KNO3 95 wt. % KNO3 Crystals (C) E

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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o hrd-principle s.. -> Sheet 12- Principle Dr. Hameed R. Alamery Q3// Potassium nitrate solution (F) containing 19 wt. %KNO3 are continuously fed to the process consists of mixer, evaporator and erystallizer at rate of 1000 kg/hr as shown in the following block diagram. Calculate the flow rate of all streams in the process and composition (wt. %) of total feed stream (T). Water vapour (V) Recycle (R) 0.6 kg KNO3 1kg water (T) (M) Mixer Evaporator Crystallizer Feed (F) - 1000 kg/hr 50 wt. NKNO3 95 wt. KNO3 19 wt. % KNO3 Crystals (C) Ans. C= 200; V= 800; M-900; R= 720; T= 1720 kg/hr Composition of T: 26.7 % KNO3 Q4/ Preparation of caustic soda solution is usually carried out by a two-step process as shown in the following block diagram. Part of water (WI) is added to the first tank, whereas the second part (W2) is by passed due to the high heat of dissolution. Calculate the mass ratio of (wl/w2). Solid NaOH (F) By pass (W2) Dilute Water Solution (D) (W) (wi) (M) 24% NaOH Divider Dissolution Dilution tank Ans.: W1/W2 = 0.52 2 Sheet 12- Principle Dr. Hameed R Alamery Q5/ Ethanol is manufactured by catalytic hydration of ethylene:- C2H4 + H20 - C2H50H Mwt. 28 18 46 The molal ratio of water to ethylene in total feed input to the reactor = 3/5. Conversion of ethylene = 5%. Calculate the flow rates of streams F2, P.W and R. Recycle (R) C2H4 F1 - 224 Ib/hr C2H4 94 wt Ethanol 6 wt. % water Mixer Reactor Separator F2 (Water) II <>
Transcribed Image Text:o hrd-principle s.. -> Sheet 12- Principle Dr. Hameed R. Alamery Q3// Potassium nitrate solution (F) containing 19 wt. %KNO3 are continuously fed to the process consists of mixer, evaporator and erystallizer at rate of 1000 kg/hr as shown in the following block diagram. Calculate the flow rate of all streams in the process and composition (wt. %) of total feed stream (T). Water vapour (V) Recycle (R) 0.6 kg KNO3 1kg water (T) (M) Mixer Evaporator Crystallizer Feed (F) - 1000 kg/hr 50 wt. NKNO3 95 wt. KNO3 19 wt. % KNO3 Crystals (C) Ans. C= 200; V= 800; M-900; R= 720; T= 1720 kg/hr Composition of T: 26.7 % KNO3 Q4/ Preparation of caustic soda solution is usually carried out by a two-step process as shown in the following block diagram. Part of water (WI) is added to the first tank, whereas the second part (W2) is by passed due to the high heat of dissolution. Calculate the mass ratio of (wl/w2). Solid NaOH (F) By pass (W2) Dilute Water Solution (D) (W) (wi) (M) 24% NaOH Divider Dissolution Dilution tank Ans.: W1/W2 = 0.52 2 Sheet 12- Principle Dr. Hameed R Alamery Q5/ Ethanol is manufactured by catalytic hydration of ethylene:- C2H4 + H20 - C2H50H Mwt. 28 18 46 The molal ratio of water to ethylene in total feed input to the reactor = 3/5. Conversion of ethylene = 5%. Calculate the flow rates of streams F2, P.W and R. Recycle (R) C2H4 F1 - 224 Ib/hr C2H4 94 wt Ethanol 6 wt. % water Mixer Reactor Separator F2 (Water) II <>
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