Design and analysis of heat exchanger networks for integrated Ca-looping systems

Design and analysis of heat exchanger networks for integrated Ca-looping systems 1 Introduction</h5> The reduction of energy consumption by improving the efficiency of industrial processes is an essential mechanism to minimize global warming. CO 2 capture processes may significantly diminish the greenhouse gas emissions; although one of their main drawbacks is the high energy penalty. Energy optimization is, therefore, crucial for CO 2 capture development.</P>Among the different proposed technologies, high temperature looping cycles represent an option with wide integration capabilities, which would limit this energy penalty to 10–12 efficiency points [1,2] . Calcium looping cycles take advantage of the reversible decomposition of CaCO 3 combining the low sorbent cost, the absence of flue gas treatment and the possibility of integration with power plants or cement industry [3–5] .</P>Shimizu et al. [6] first proposed the dual circulating fluidized bed configuration for implementing the Ca-looping in post-combustion. A flowsheet diagram is shown in Fig. 1 . Flue gas (1) from a power plant is fed to the first reactor, where the carbonation reaction takes place, at around 650 °C, and a percentage of the CO 2 is captured exothermically. Afterwards, flue gas is addressed to the stack as clean gas (2). A stream of partially carbonated solids (3) is then directed http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Applied Energy Elsevier

Design and analysis of heat exchanger networks for integrated Ca-looping systems

Loading next page...
 
/lp/elsevier/design-and-analysis-of-heat-exchanger-networks-for-integrated-ca-Sxa762Wgbu
Publisher
Elsevier
Copyright
Copyright © 2013 Elsevier Ltd
ISSN
0306-2619
D.O.I.
10.1016/j.apenergy.2013.05.044
Publisher site
See Article on Publisher Site

Abstract

1 Introduction</h5> The reduction of energy consumption by improving the efficiency of industrial processes is an essential mechanism to minimize global warming. CO 2 capture processes may significantly diminish the greenhouse gas emissions; although one of their main drawbacks is the high energy penalty. Energy optimization is, therefore, crucial for CO 2 capture development.</P>Among the different proposed technologies, high temperature looping cycles represent an option with wide integration capabilities, which would limit this energy penalty to 10–12 efficiency points [1,2] . Calcium looping cycles take advantage of the reversible decomposition of CaCO 3 combining the low sorbent cost, the absence of flue gas treatment and the possibility of integration with power plants or cement industry [3–5] .</P>Shimizu et al. [6] first proposed the dual circulating fluidized bed configuration for implementing the Ca-looping in post-combustion. A flowsheet diagram is shown in Fig. 1 . Flue gas (1) from a power plant is fed to the first reactor, where the carbonation reaction takes place, at around 650 °C, and a percentage of the CO 2 is captured exothermically. Afterwards, flue gas is addressed to the stack as clean gas (2). A stream of partially carbonated solids (3) is then directed

Journal

Applied EnergyElsevier

Published: Nov 1, 2013

References

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Search

Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly

Organize

Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.

Access

Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

DeepDyve

Freelancer

DeepDyve

Pro

Price

FREE

$49/month
$360/year

Save searches from
Google Scholar,
PubMed

Create lists to
organize your research

Export lists, citations

Read DeepDyve articles

Abstract access only

Unlimited access to over
18 million full-text articles

Print

20 pages / month

PDF Discount

20% off