Electrified externally heated rotary calciner for calcination of cement raw meal
The cement industry can reduce its CO2 emissions by electrifying the calciner. It can avoid emissions from fuel combustion and produce pure CO2 from the calcination reaction (CaCO3 → CaO + CO2) for direct capture. A differential-algebraic equation (DAE) model of an electrified rotary calciner was de...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2023-11-01
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| Series: | Heliyon |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405844023092319 |
| _version_ | 1827615868064890880 |
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| author | Ron M. Jacob Jean-Patrick Pinheiro Lars-André Tokheim |
| author_facet | Ron M. Jacob Jean-Patrick Pinheiro Lars-André Tokheim |
| author_sort | Ron M. Jacob |
| collection | DOAJ |
| description | The cement industry can reduce its CO2 emissions by electrifying the calciner. It can avoid emissions from fuel combustion and produce pure CO2 from the calcination reaction (CaCO3 → CaO + CO2) for direct capture. A differential-algebraic equation (DAE) model of an electrified rotary calciner was developed and validated against experimental results. The heat transfer coefficient was around 30 W/(m2K), with the calciner inclined at 15°. This value increased to 80 W/(m2K) by reducing the inclination to 2°. The rotary calciner for producing 1 Mton/yr clinker with an internal diameter of 5 m needs a length of 485 m to reach a calcination degree of 94 %. The large system size suggests that this calciner may not be suitable for full-scale production. However, it can still be used for small-scale green production of calcined limestone. |
| first_indexed | 2024-03-09T09:17:47Z |
| format | Article |
| id | doaj.art-6566a2551f644d4187c2c17bcb5565f9 |
| institution | Directory Open Access Journal |
| issn | 2405-8440 |
| language | English |
| last_indexed | 2024-03-09T09:17:47Z |
| publishDate | 2023-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Heliyon |
| spelling | doaj.art-6566a2551f644d4187c2c17bcb5565f92023-12-02T07:04:57ZengElsevierHeliyon2405-84402023-11-01911e22023Electrified externally heated rotary calciner for calcination of cement raw mealRon M. Jacob0Jean-Patrick Pinheiro1Lars-André Tokheim2University of South-Eastern Norway, Kjølnes ring 56, 3918, Porsgrunn, Norway; Corresponding author. Borgehaven 23, Porsgrunn, 3911, Norway.Institute for Energy Technology, Instituttveien 18, 2007, Kjeller, NorwayUniversity of South-Eastern Norway, Kjølnes ring 56, 3918, Porsgrunn, NorwayThe cement industry can reduce its CO2 emissions by electrifying the calciner. It can avoid emissions from fuel combustion and produce pure CO2 from the calcination reaction (CaCO3 → CaO + CO2) for direct capture. A differential-algebraic equation (DAE) model of an electrified rotary calciner was developed and validated against experimental results. The heat transfer coefficient was around 30 W/(m2K), with the calciner inclined at 15°. This value increased to 80 W/(m2K) by reducing the inclination to 2°. The rotary calciner for producing 1 Mton/yr clinker with an internal diameter of 5 m needs a length of 485 m to reach a calcination degree of 94 %. The large system size suggests that this calciner may not be suitable for full-scale production. However, it can still be used for small-scale green production of calcined limestone.http://www.sciencedirect.com/science/article/pii/S2405844023092319Electrified calcinerRotary kilnCO2 emissionsScale-up |
| spellingShingle | Ron M. Jacob Jean-Patrick Pinheiro Lars-André Tokheim Electrified externally heated rotary calciner for calcination of cement raw meal Heliyon Electrified calciner Rotary kiln CO2 emissions Scale-up |
| title | Electrified externally heated rotary calciner for calcination of cement raw meal |
| title_full | Electrified externally heated rotary calciner for calcination of cement raw meal |
| title_fullStr | Electrified externally heated rotary calciner for calcination of cement raw meal |
| title_full_unstemmed | Electrified externally heated rotary calciner for calcination of cement raw meal |
| title_short | Electrified externally heated rotary calciner for calcination of cement raw meal |
| title_sort | electrified externally heated rotary calciner for calcination of cement raw meal |
| topic | Electrified calciner Rotary kiln CO2 emissions Scale-up |
| url | http://www.sciencedirect.com/science/article/pii/S2405844023092319 |
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