Total Site Heat Integration of Mechanical Vapour Recompression Multi-Effect Evaporators for Older Kraft Mills
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F17%3APU127118" target="_blank" >RIV/00216305:26210/17:PU127118 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.3303/CET1761042" target="_blank" >http://dx.doi.org/10.3303/CET1761042</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3303/CET1761042" target="_blank" >10.3303/CET1761042</a>
Alternative languages
Result language
angličtina
Original language name
Total Site Heat Integration of Mechanical Vapour Recompression Multi-Effect Evaporators for Older Kraft Mills
Original language description
This paper aims to apply Total Site Heat Integration (TSHI) to appropriately integrate Mechanical and Thermal Vapour Recompression with multi-effect evaporators at older Kraft Mills, to cause a step reduction in fossil fuel use and its associated emissions. Heat and power demands for older Kraft Mills are chiefly satisfied from Recovery Boilers (RB), heavily supplemented by biomass/fossil fuel boilers, and integrated with steam turbines. Prior to firing, black liquor - the RB fuel - is concentrated from about 18 % to 67 % in a multi-effect evaporator, which demands 20 % of site-wide thermal energy. With access to renewable electricity, this study finds that vapour recompression can be economically integrated into a multi-effect evaporator at older Kraft Mills. The vapour recompression configuration with the greatest economic potential used 2-stages of mechanical vapour recompression and 1-stage of thermal vapour recompression. This system achieved a levelised profit of NZD 8.56 M/y, a payback period of 1.0 y and an internal rate of return of 103 %. An optimum integrated set-up needs to account for site-specific heat demand and utility supply profiles through TSHI.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
20402 - Chemical process engineering
Result continuities
Project
<a href="/en/project/EF15_003%2F0000456" target="_blank" >EF15_003/0000456: Sustainable Process Integration Laboratory (SPIL)</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Chemical Engineering Transactions
ISBN
978-88-95608-51-8
ISSN
2283-9216
e-ISSN
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Number of pages
6
Pages from-to
265-270
Publisher name
Italian Association of Chemical Engineering - AIDIC
Place of publication
Neuveden
Event location
Tianjin
Event date
Aug 21, 2017
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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