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99339

Enhancing Carbonation Process during Carbon Dioxide Capturing Applying Jetting Fountain Fluidized Bed.

Article

Last updated: 04 Jan 2025

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Tags

Mechanical Power Engineering

Abstract

- Carbon dioxide from fossil fuel burning is the major contributor to the greenhouse effect from human activities. Within the many options and actions for mitigation of greenhouse gas emissions, CO2 capture and storage is emerging as a viable option to achieve the very deep cuts in emissions that might be needed in the medium term. One promising means of CO2 capture for fossil fuels based power plants is to use a lime carbonation–calcination cycle. The aim of the current work is to enhance the carbonation process by applying jetting fountain fluidized bed. A jetting fountain fluidized bed reactor has been designed, fabricated and installed to carry out the experimental work. It has 105 mm ID and 4000 mm height. Jabal al-Tair limestone has been utilized as bed materials. During the tests a mixture of nitrogen and carbon dioxide, that simulates exhaust gases (15% CO2), is fed through a bed of lime particles. The lime particles are carbonated by capturing CO2. The concentration of CO2 is measured after the bed to estimate the quantities of CO2 that combined with the lime particles. The influences of operating conditions including bed temperature, fluidization velocity, jet air ratio and jet orifice height on the capture efficiency of CO2 have been studied. The findings of the present work indicate that the jetting fountain fluidized bed is more efficient in carbonation where the CaO conversion rate increases and the time required for full conversion reduces. Applying jetting fountain configuration enhances gas solids contact and improves the interphases mass exchange between bubbles and emulsion. The capture efficiency of CO2 rate was found to improve with bed temperature and fluidization velocity. On the other side, studying the influences of jet air ratio and jet orifice height demonstrate that there is an intermediate value at which the capture efficiency records an optimal

DOI

10.21608/bfemu.2020.99339

Keywords

Fluidized Bed, limestone, CO2 capture

Authors

First Name

Ahmed

Last Name

Alabeedy

MiddleName

A.

Affiliation

Mechanical power engineering Dept., Faculty of engineering Mansoura University, Mansoura, Egypt

Email

2amalabeedy@gmail.com

City

-

Orcid

-

First Name

Ahmed

Last Name

Hegazi

MiddleName

Abd-Elsalam

Affiliation

Mechanical Engineering Department, University of Mansoura, CO 35516, Egypt

Email

ahmedabd_elsallam@yahoo.com

City

Mansoura

Orcid

-

First Name

Farouk

Last Name

Okasha

MiddleName

Mohamed

Affiliation

Mechanical power engineering Dept., Faculty of engineering Mansoura University, Mansoura, Egypt

Email

-

City

-

Orcid

-

Volume

41

Article Issue

1

Related Issue

14715

Issue Date

2016-03-01

Receive Date

2016-12-02

Publish Date

2020-06-30

Page Start

1

Page End

8

Print ISSN

1110-0923

Online ISSN

2735-4202

Article File

BFEMU_Volume 41_Issue 1_Pages 1-8.pdf

PDF . 994.6kB

Link

https://bfemu.journals.ekb.eg/article_99339.html

Detail API

https://bfemu.journals.ekb.eg/service?article_code=99339

Order

3

Type

Research Studies

Type Code

1,205

Publication Type

Journal

Publication Title

MEJ. Mansoura Engineering Journal

Publication Link

https://bfemu.journals.ekb.eg/

MainTitle

Enhancing Carbonation Process during Carbon Dioxide Capturing Applying Jetting Fountain Fluidized Bed.

Details

Type

Article

Created At

22 Jan 2023