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Energy and exergy analysis of entrained bed gasifier/GT/Kalina cycle model for CO2 co-gasification of waste tyre and biochar
- Publication Year :
- 2023
-
Abstract
- © 2022 Elsevier LtdIntegrated gasification combined cycle (IGCC) is a power generation technology that partially oxidizes solid feedstocks to produce syngas, drives high-efficiency gas turbines (GT), recovers waste heat and uses it to generate electricity, etc. In this study, a new IGCC model for an entrained bed gasifier/GT/Kalina cycle for CO2 co-gasification was developed for the first time using Aspen HYSYS, and an energy and exergy analysis of this model was performed to provide decision makers with a comprehensive overview of whether the energy conversion system is designed to be sustainable from a variety of perspectives. The newly proposed integrated system was used to study the CO2/air gasification process of the biochar/waste tyre blend. Although entrained bed gasifiers have been modelled using different software and different fuels, no study on the Kalina cycle integrated biochar/waste tyre co-gasification process using Aspen HYSYS has not been reported yet. In addition, most parametric studies on integrated Kalina combined cycles focus on the influence of the Kalina cycle or a few operating factors. However, in this study, the effects of a variety of gasification process operating conditions on the performance of the combined cycle are considered. The equivalence ratio (ER) for a high-efficiency integrated system ranged from 0.23 to 0.25, and the CO2 content in the gasifying agent was in the range of 5–7%. While increasing the waste tyre content in the feedstock enhances H2 production, operating the entrained bed gasifier at relatively low temperature is more efficient. Increasing the ammonia content in the working fluid also improves efficiency, and the inlet pressure of the Kalina turbine should be maintained at 28 bar to maximize performance. While the integration of the GT enables significant power generation, optimizing the operating conditions of the gasifier, which has the highest exergy dissipation, is critical to the performance of the integrated system.
- Subjects :
- CO2 Co-Gasification
Kalina Cycle
Tarımsal Bilimler
General Chemical Engineering
Farm Machinery
Temel Bilimler (SCI)
Mühendislik
Enerji Mühendisliği ve Güç Teknolojisi
Energy Engineering and Power Technology
ENGINEERING
Biochemistry
Organik Kimya
Chemical Engineering and Technology
Kimya
Aspen HYSYS
Biyoyakıt Teknolojisi
Ziraat
CHEMISTRY
ENERGY & FUELS
KİMYA, ORGANİK
Biyokimya
Tarım Makineleri
Kimya Mühendisliği ve Teknolojisi
Biyoinorganik Kimya
MÜHENDİSLİK, KİMYASAL
Waste Tyre
Engineering, Computing & Technology (ENG)
Bioinorganic Chemistry
Genel Kimya Mühendisliği
Agricultural Sciences
Yakıt Teknolojisi
Temel Bilimler
Organic Chemistry
ENERJİ VE YAKITLAR
Tarımda Enerji
Mühendislik, Bilişim ve Teknoloji (ENG)
Agriculture
CHEMISTRY, ORGANIC
Energy in Agriculture
Fuel Technology
Fizik Bilimleri
IGCC
Natural Sciences (SCI)
Physical Sciences
Engineering and Technology
Mühendislik ve Teknoloji
Biofuels Technology
Natural Sciences
ENGINEERING, CHEMICAL
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....751ee342c2e462e7d5ae1f79e5146e88