AI Article Synopsis
- An innovative downdraft gasifier design has been developed at Oklahoma State University, featuring a unique mechanism for biomass pyrolysis and tar cracking.
- Research trials utilized wood shavings as the feedstock, achieving maximum tar cracking temperatures exceeding 1100°C.
- The resulting product gas demonstrated significant concentrations of combustible gases, with 22% CO and 11% H2, along with hot and cold gas efficiencies of 72% and 66%, respectively.
Article Abstract
An exploratory downdraft gasifier design with unique biomass pyrolysis and tar cracking mechanism is evolved at Oklahoma State University. This design has an internal separate combustion section where turbulent, swirling high-temperature combustion flows are generated. A series of research trials were conducted using wood shavings as the gasifier feedstock. Maximum tar cracking temperatures were above 1100°C. Average volumetric concentration levels of major combustible components in the product gas were 22% CO and 11% H(2). Hot and cold gas efficiencies were 72% and 66%, respectively.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.biortech.2011.03.033 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Investigating the sustainable energy generation potential of an invasive weed: Lantana camara.
Environ Sci Pollut Res Int
November 2024
Hydro and Renewable Energy Department, Indian Institute of Technology Roorkee, Roorkee, India.
Lantana camara, one of the world's top ten most invasive species, was initially cultivated for ornamental use. However, it spread uncontrollably across the fallow areas and agricultural lands, threatening approximately 44% of Indian forests. Its invasion disrupts ecosystems by suppressing nearby plant growth through allelopathy and poses toxicity risks to grazing ruminants.
View Article and Find Full Text PDFEffect of soaked biomass on gasification temperature performance in an open-downdraft gasifier.
Bioresour Technol
January 2025
Departement of Mechanical Engineering, University of Subang, Subang 42115, Indonesia.
Gasification of soaked biomass is a novel approach to saving cost and time of conditioning feedstock. It may have disadvantages on gasification temperature since an open-downdraft gasifier requires a zone with high temperature to maintain endothermic gasification processes. Heat is generated by exothermic reaction in the gasifier.
View Article and Find Full Text PDFEssential aspects of the CFD software modelling of biomass gasification processes in downdraft reactors.
RSC Adv
September 2024
Guangdong Provincial Key Laboratory of Distributed Energy Systems, Dongguan University of Technology Dongguan 523808 China
Mathematical modelling and simulation of gasification processes are increasingly used in the scientific field. This review explores the application of computational fluid dynamics (CFD) in modeling biomass gasification processes in downdraft gasifiers. It discusses the different types of gasification agents used, the composition of syngas, and key operational parameters influencing the process.
View Article and Find Full Text PDFUnlocking the techno-economic potential of biomass gasification for power generation: Comparative analysis across diverse plant capacities.
Waste Manag
December 2024
Department of Chemical and Environmental Engineering, Malaysia-Japan International Institute of Technology (MJIIT), Universiti Teknologi Malaysia, Kuala Lumpur, Malaysia. Electronic address:
Article Synopsis
- The research evaluates the commercial potential and economic viability of biomass gasification using an established downdraft gasifier model, focusing on the influence of key factors like temperature and equivalence ratio on syngas properties.
- Among the feedstocks tested, coconut shell proved to be the most effective, producing syngas with high low heating value (LHV) and cold gas efficiency (CGE) at optimal temperatures.
- Larger-scale operations, particularly a 20 MW plant, exhibited positive economic indicators such as a short payback period and lower electricity costs, highlighting the potential for biomass gasification to be a sustainable option for power generation.
Steady and transient state behavior of a gasification process under fixed-bed downdraft configuration.
Heliyon
August 2024
Grupo de Investigación e Innovación en Energía (GIIEN), Institución Universitaria Pascual Bravo, Calle 73 No. 73 - 226, Medellín, 050034, Colombia.
Gasification is a thermochemical process that has gained significant interest in the field of biomass energy conversion. Despite the level of technological maturity of the process, the dynamic variation of the process as a result of changes in both the properties of the gasifying agent and biomass has not been analysed in sufficient depth. Therefore, the present study characterizes the process dynamically as a function of step-type changes in rice husk biomass moisture content and gasifying airflow.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!