+ 52.4×10² 5. Calcination of limestone - 15775 We charge the limestone (CaCO3) at 25°C, into an electrical heating furnace at 800°C, where the calcination is accomplished. The products are lime (CaO) and gas CO₂. How much electrical energy (kw-h) should be provided in order to produce 1000 kg CaO? (Ignore the heat loss due to radiation and convection) CaO(s) + CO₂(g) - CaCO3(s) CaCo3 C₂O + CO₂ = -177.8 kJ AH (48.83+4.52 x 10 T-6.53 10³ T2) J/mol K (44.14 +9.04 x 10³ T-8.54 x 10³ T) J/mol K x £(CaO)= &CO,)= answer: 1250 kw-h =1660+
+ 52.4×10² 5. Calcination of limestone - 15775 We charge the limestone (CaCO3) at 25°C, into an electrical heating furnace at 800°C, where the calcination is accomplished. The products are lime (CaO) and gas CO₂. How much electrical energy (kw-h) should be provided in order to produce 1000 kg CaO? (Ignore the heat loss due to radiation and convection) CaO(s) + CO₂(g) - CaCO3(s) CaCo3 C₂O + CO₂ = -177.8 kJ AH (48.83+4.52 x 10 T-6.53 10³ T2) J/mol K (44.14 +9.04 x 10³ T-8.54 x 10³ T) J/mol K x £(CaO)= &CO,)= answer: 1250 kw-h =1660+
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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Question
Calcination of limestone We charge the limestone(CaCO3)at25∘C, into an electrical heating furnace at800∘C, where the calcination is accomplished. The products are lime(CaO)and gasCO2. How much electrical energy (kw h) should be provided in
Transcribed Image Text:+52.4×10³
5. Calcination of limestone
16775
We charge the limestone (CaCO3) at 25°C, into an electrical heating furnace at 800°C, where the calcination is
accomplished. The products are lime (CaO) and gas CO₂. How much electrical energy (kw-h) should be provided in
order to produce 1000 kg CaO? (Ignore the heat loss due to radiation and convection)
CaO(s) + CO₂(g) = CaCO3(s)
AH-177.8 kJ
Cacos CaO + CO₂
£p(CaO)=
©(CO,)=
answer: 1250 kw-h
(48.83+4.52 x 10³ T-6.53 x 10³ T²) J/mol K
(44.14 +9.04 x 10³ T-8.54 x 10³ T) J/mol K
(01.8 kJ
1
= 1660 +241
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