Entrained flow Co-gasification of torrefied biomass and coal
Energy, cilt.263, 2023 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 263
- Basım Tarihi: 2023
- Doi Numarası: 10.1016/j.energy.2022.125864
- Dergi Adı: Energy
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Aerospace Database, Applied Science & Technology Source, Aquatic Science & Fisheries Abstracts (ASFA), CAB Abstracts, Communication Abstracts, Computer & Applied Sciences, Environment Index, INSPEC, Metadex, Pollution Abstracts, Public Affairs Index, Veterinary Science Database, Civil Engineering Abstracts
- Anahtar Kelimeler: Low-rank coals, Biomass, Torrefaction, Entrained bed gasifier, Co-gasification, SYNGAS PRODUCTION, TORREFACTION, PYROLYSIS, PRETREATMENT, TEMPERATURE, KINETICS, BEHAVIOR, LIGNITE, IMPACT, RATIO
- Marmara Üniversitesi Adresli: Evet
Özet
© 2022 Elsevier LtdIn this study, the effect of blending selected torrefied biomass and lower-rank coal samples on entrained flow co-gasification is experimentally investigated, and the results are compared with entrained flow gasification of coal samples. Three biomass samples were torrefied in a lab-scale torrefaction system to obtain a coal-like structure, coherent with the selected coal samples. 275 °C and 40 min were selected as the best-suited torrefaction condition for blending with the coal samples. Four 1:1 coal-torrefied biomass blends were prepared considering the ash and grindability properties for entrained flow co-gasification. The gasification simulations were carried out with Aspen HYSYS to assess the effect of the process conditions. The entrained flow gasifier with 15 kW capacity was built and operated between 1500 °C and 1200 °C with three coals and their four blends. The experimental results show methane (>1300 °C gasification temperature) and tar-free syngas composition. The results of entrained flow co-gasification experiments indicate higher cold gas efficiencies, better syngas quality, and carbon conversion with torrefied biomass blending compared to entrained flow gasification of coal samples. Co-utilization of coal and biomass can be part of a short to medium-term contribution to energy, waste, and global climate change problems.