29.2 Hydrogen sulfide (H₂S) is a common contaminant in natural gas. The dissolution of H₂S gas in water is a linear function of partial pressure, as is described by Henry's law of the form PA = H x Values of H vs. temperature are provided below: T (°C) H (atm) mole H₂S/ mole MEA 20 483 PA (mm Hg) 30 449 Given the relatively low solubility of H₂S in water, an amine- based chelating agent is added to the water to improve the solubility of H₂S. Equilibrium distribution data for H₂S in a 15.9 wt% solution of monoethanolamine (MEA) in water at 40°C is provided below:+ 40 520 0.000 0.125 0.208 0.362 50 577 0.643 0.729 0.814 0.00 0.96 3.00 9.10 43.1 59.7 106 Describe the effect of temperature on the solubility of H₂S gas in water.
29.2 Hydrogen sulfide (H₂S) is a common contaminant in natural gas. The dissolution of H₂S gas in water is a linear function of partial pressure, as is described by Henry's law of the form PA = H x Values of H vs. temperature are provided below: T (°C) H (atm) mole H₂S/ mole MEA 20 483 PA (mm Hg) 30 449 Given the relatively low solubility of H₂S in water, an amine- based chelating agent is added to the water to improve the solubility of H₂S. Equilibrium distribution data for H₂S in a 15.9 wt% solution of monoethanolamine (MEA) in water at 40°C is provided below:+ 40 520 0.000 0.125 0.208 0.362 50 577 0.643 0.729 0.814 0.00 0.96 3.00 9.10 43.1 59.7 106 Describe the effect of temperature on the solubility of H₂S gas in water.
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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Transcribed Image Text:29.2 Hydrogen sulfide (H₂S) is a common contaminant in
natural gas. The dissolution of H₂S gas in water is a linear
function of partial pressure, as is described by Henry's law of the
form PA = H x. Values of H vs. temperature are provided
below:
T (°C)
H (atm)
mole H₂S/
mole MEA
20
483
PA (mm Hg)
30
449
Given the relatively low solubility of H₂S in water, an amine-
based chelating agent is added to the water to improve the
solubility of H₂S. Equilibrium distribution data for H₂S in a
15.9 wt% solution of monoethanolamine (MEA) in water at
40°C is provided below:
40
520
50
577
0.000 0.125 0.208 0.362 0.643 0.729 0.814
0.00 0.96 3.00 9.10 43.1 59.7 106
Describe the effect of temperature on the solubility of H₂S
gas in water.
b. Prepare equilibrium distribution plots, in mole-fraction
coordinates (y₁ -— XÃ), for the solubility of H₂S in water
vs. H₂S in 15.9 wt% MEA solution at 40°C and 1.0 atm total
system pressure. Comment on the relative solubility of H₂S
in water vs. MEA solution.
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