A concern with plans for capture of CO 2 directly from ambient air (DAC), is the sheer volume of material that must be processed. One design requires fans to blow air at 2 m/s through 2.8 m thickness of absorber and other materials and aims to absorb 50% of the CO 2 from the airstream. Assume a rectangular installation of length L, height 100 m (and thickness 2.8 m). How large must L be in order for this DAC plant to remove the CO 2 produced by a 1 GWe coal- fired power plant operating at 30% efficiency? Assume a nominal energy content of coal as 29.3 GJ/t. How large a population could have its carbon footprint eliminated by this DAC plant (assuming the plant to be powered by a non-carbon source), if the average power consumption per capita is about 1 GJ/d?
A concern with plans for capture of CO 2 directly from ambient air (DAC), is the sheer volume of material that must be processed. One design requires fans to blow air at 2 m/s through 2.8 m thickness of absorber and other materials and aims to absorb 50% of the CO 2 from the airstream. Assume a rectangular installation of length L, height 100 m (and thickness 2.8 m). How large must L be in order for this DAC plant to remove the CO 2 produced by a 1 GWe coal- fired power plant operating at 30% efficiency? Assume a nominal energy content of coal as 29.3 GJ/t. How large a population could have its carbon footprint eliminated by this DAC plant (assuming the plant to be powered by a non-carbon source), if the average power consumption per capita is about 1 GJ/d?
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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A concern with plans for capture of CO 2 directly from ambient air (DAC), is the
sheer volume of material that must be processed. One design requires fans to
blow air at 2 m/s through 2.8 m thickness of absorber and other materials and
aims to absorb 50% of the CO 2 from the airstream. Assume a rectangular
installation of length L, height 100 m (and thickness 2.8 m). How large must L
be in order for this DAC plant to remove the CO 2 produced by a 1 GWe coal-
fired power plant operating at 30% efficiency? Assume a nominal energy content
of coal as 29.3 GJ/t. How large a population could have its carbon footprint
eliminated by this DAC plant (assuming the plant to be powered by a non-carbon
source), if the average power consumption per capita is about 1 GJ/d?
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