Non-natural catalysts for catalytic tar conversion in biomass gasification technology

Author(s):  
Guiying Xu ◽  
Pei Yang ◽  
Shuangxia Yang ◽  
Hanxi Wang ◽  
Baizeng Fang
2018 ◽  
Vol 2018 ◽  
pp. 1-16 ◽  
Author(s):  
Gbeminiyi M. Sobamowo ◽  
Sunday J. Ojolo

Nigeria has not been able to provide enough electric power to her about 200 million people. The last effort by the federal government to generate 6000 MW power by the end of 2009 failed. Even with the available less than 6000 MW of electricity generated in the country, only about 40% of the population have access to the electricity from the National Grid, out of which, urban centers have more than 80% accessibility while rural areas, which constitute about 70% of the total population, have less than 20% of accessibility to electricity. This paper addresses the possibility of meeting the energy demand in Nigeria through biomass gasification technology. The techno-economic analysis of biomass energy is demonstrated and the advantages of the biomass gasification technology are presented. Following the technical analysis, Nigeria is projected to have total potential of biomass of about 5.5 EJ in 2020 which has been forecast to increase to about 29.8 EJ by 2050. Based on a planned selling price of $0.727/kWh, the net present value of the project was found to be positive, the cost benefit ratio is greater than 1, and the payback period of the project is 10.14 years. These economic indicators established the economic viability of the project at the given cost. However, economic analysis shows a selling price of $0.727/kWh. Therefore, the capital investment cost, operation and maintenance cost, and fuel cost can be reduced through the development of the gasification system using local materials, purposeful and efficient plantation of biomass for the energy generation, giving out of financial incentives by the government to the investors, and locating the power plant very close to the source of feedstock generation.


2011 ◽  
Vol 56 (14) ◽  
pp. 1449-1456 ◽  
Author(s):  
Qing Chen ◽  
JinSong Zhou ◽  
BingJun Liu ◽  
QinFeng Mei ◽  
ZhongYang Luo

2005 ◽  
Vol 127 (1) ◽  
pp. 71-82 ◽  
Author(s):  
T. T. Maxwell ◽  
Joe D. Nevill ◽  
A. Ertas ◽  
Joe Craig

Over the last 100 years, the ability to reliably extract energy through biomass gasification has proven to be quite elusive. Environmental issues, energy shortages, and the lack of coherent energy development policies in third world countries have kindled a renewed interest in biomass gasification technology. Recent innovations in pressurized fluidized bed gasification technology have raised expectations for the development of highly efficient biomass gasification power systems. The use of pressurized gasification systems has introduced a supposedly insurmountable problem regarding the transport of biomass across a pressure differential as it is fed to the gasifier. The biomass feed system must provide the capability to not only reliably feed the biomass to the gasifier, it must also monitor and automatically adjust the feed rate to the operating condition of the system. This paper presents the development of a biomass feed system, weight belt assembly modeling, and automated cascade loop PID control development.


2016 ◽  
Vol 25 (1) ◽  
pp. 10-25 ◽  
Author(s):  
Antonio Molino ◽  
Simeone Chianese ◽  
Dino Musmarra

Author(s):  
V. Gulbis

During the last few years combined production of electricity and heat based on biomass gasification technology and on gas utilization in gas-fired engines has been widely reconsidered. This method is more sustainable and environmentally friendly provision of energy in the future. Latvia is rich in forests and the wood processing industry is developing very fast, giving about 4.5 mill. m3 of woods residue per year. The use of wood residue does not follow the increase of wood production. In Latvia we have abundant biomass resources such as wood harvesting and wood processing residues, waste wood and sawdust. As a first attempt to introduce biomass gasification technology in Latvia some researchers at the faculty of engineering of LUA are developing an integral small scale combined heat and power (CHP) system based on a used Russian-made diesel-alternator set with electrical output 100 kWe. The diesel is converted to dual fuel gas engine, using producer gas as the main fuel and gas oil as pilot fuel. To get sufficiently clean (tar content ? 250 mg/m3) woodgas for using in IC engine a downdraft type of gasifier was chosen designed and constructed on the “IMBERT” gasifier principles. The test runs of the first experimental model showed that the engine does not develop expected power because of high resistance of gasifier and gas cleaning system does not work sufficiently enough. There was rather high level of tar content in woodgas because the temperature in the reduction zone was to low. Calculations were carried out and a new technological scheme of gasification system was worked out, introducing innovative ideas aimed on improving the working parameters. The experiments and calculations showed that such a type of CHP plant could be a technologically and economically interesting option for small sawmills and farms in rural areas.


2021 ◽  
pp. 137-159
Author(s):  
N.S. Rathore ◽  
N.L. Panwar

Author(s):  
Xiaodong Zhang ◽  
Min Xu ◽  
Huacai Liu ◽  
Zhaoqiu Zhou ◽  
Xiuli Yin ◽  
...  

Fuel ◽  
2013 ◽  
Vol 108 ◽  
pp. 409-416 ◽  
Author(s):  
Li Dong ◽  
Mohammad Asadullah ◽  
Shu Zhang ◽  
Xiao-Shan Wang ◽  
Hongwei Wu ◽  
...  

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