An off-gas from a crude oil topping plant has the following composition: Component Vol. % Methane 88 Ethane 6 Propane 4 Butane 2 a. Calculate the higher heating value on the following bases: (1) Btu per pound, (2) Btu per lb mole, and (3) Btu per cubic foot of off-gas measured at 60°F and 760 mm Hg. b. Calculate the lower heating value on the same three bases indicated in part a

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
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An off-gas from a crude oil topping plant has the following composition:

Component

Vol. %

Methane

88

Ethane

6

Propane

4

Butane

2

a. Calculate the higher heating value on the following bases:

(1) Btu per pound,

(2) Btu per lb mole, and

(3) Btu per cubic foot of off-gas measured at 60°F and 760 mm Hg.

b. Calculate the lower heating value on the same three bases indicated in part a

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