A4 Conference proceedings

Biomass-fired combined heat and power plant with calcium looping CO2 capture – process configuration analysis


Open Access publication

Publication Details
Authors: Gladysz Pawel, Tynjälä Tero, Hyppänen Timo
Publication year: 2018
Language: English
Title of parent publication: Proceedings of the 5th International Conference Contemporary Problems of Thermal Engineering
Start page: 1425
End page: 1446
Number of pages: 22
ISBN: 978-83-61506-46-1
JUFO-Level of this publication: 0
Open Access: Open Access publication

Abstract

The need of biomass combustion with CO2 capture and storage, so called bio-energy CO2 capture and storage (BECCS), has been identified as one of the key technologies to keep global warming below 2°C. BECCS is the only large-scale technology that can “remove” the CO2 from the atmosphere. According
to the BECCS definition capturing and storing the CO2 originating from biomass, and as the biomass
binds carbon from the atmosphere as it grows, will results in “net removal of CO2” from the atmosphere.
The CO2 capture and storage (CCS) technologies are planned to be mid-term technologies, which should
help to meet the required CO2 emission reduction goals. Generally three types of CCS technologies can
be distinguished, namely: post-combustion, pre-combustion and oxy-fuel combustion. The analysed in
this paper post-combustion calcium looping (CaL) belong to emerging technologies for CO2 capture.
The process integration options of calcium looping CO2 capture installation and biomass-fired combined
heat and power (BCHP) plant are investigated. With the process modelling of the CaL systems, different
process configurations (mainly in terms of heat integration) with BCHP plant are discussed. Various
options for process integration are available depending on the oxygen supply (e.g. cryogenic or
membrane technology), water-steam cycle configuration (e.g. separate steam cycle for CaL process) or
district heating heat supply. All of the presented process configurations of BCHP plant with CaL
installation are analysed from energy efficiency point of view. The mathematical models of analysed
options have been developed within the IPSEpro software and the analysis have been performed on the
design parameters only.


Last updated on 2019-13-03 at 12:00