Inscrição na biblioteca: Guest
International Journal of Energy for a Clean Environment

Publicou 8 edições por ano

ISSN Imprimir: 2150-3621

ISSN On-line: 2150-363X

SJR: 0.597 SNIP: 1.456 CiteScore™:: 3.7 H-Index: 18

Indexed in

GENERATION OF A GASEOUS FUEL BY PYROLYSIS OF BIOMASS AND SEWAGE SLUDGE FOR USE AS REBURN GAS IN COAL-FIRED BOILERS

Volume 6, Edição 3, 2005, pp. 289-328
DOI: 10.1615/InterJEnerCleanEnv.v6.i3.60
Get accessGet access

RESUMO

Biofuels, including biomass and sewage sludge, attract increasing interest in power plant technology as a source of carbon dioxide-neutral fuel. Besides using solid pulverized biofuel as an additional fuel in coal-fired boilers, a further possibility to run a combined coal and biofuel process is to pre-pyrolyse or pre-gasify biomass or sewage sludge and to use the gas as reburn fuel in the coal-fired boiler. This process has the advantage of keeping undesired components, such as alkaline, chlorine, and heavy metal compounds, away from the coal-fired boiler. Besides the environmental aspects of air pollution, operational and economical problems, such as slagging, fouling, corrosion, and contamination of ash, become the focus of attention.
By thermal pre-treatment of biofuels using pyrolysis or gasification, the problems of a direct co-combustion process can be minimized. Within the pre-treatment process, the solid feedstock is separated into a high-energy gas and a solid residue. The gas can be used as a reburn fuel in coal-fired boilers with excellent NOx reduction properties, and the solid residue can be further processed or disposed of. The aim of the thermal pre-treatment is to bond the problematic components into the solid pyrolysis residue in order to avoid operational problems within the boiler. The separation of coal and biofuel ash in this process enables different ways to use both residuals.
At the Institute for Process Engineering and Power Plant Technology, University of Stuttgart, the pyrolysis and gasification of different biofuels has been investigated, with special emphasis on the reburn efficiency of the gas and on the release of inorganic compounds. The pyrolysis and gasification experiments have been carried out in a lab-scale entrained flow reactor (height 2.5 m, diameter 80 mm, 30 kWel, residence time 2−5 s) and in a lab-scale fluidized bed reactor (height 3 m, diameter 108 mm/135 mm, 20 kWel) in inert and oxidizing atmospheres. The gas composition, the composition of the solid residues, and the release of different components have been analyzed at reactor temperatures between 400°C and 1300°C. For reburn experiments, a lab-scale combustion reactor (pulverized fuel, height 3 m, diameter 200 mm, 30 kWel) was used.
The test runs provided information about fuel conversion efficiency, pyrolysis gas and tar yield, and composition of pyrolysis gas and tar. Studies regarding the path of inorganic elements, such as alkali, chlorine, and nitrogen components, during the pyrolysis process have been carried out. The fuel-nitrogen distribution among pyrolysis gas, tar, and char has been analyzed, as well as ash composition and the release of inorganic components during pyrolysis.
Detailed results of investigations using pyrolysis gas from coal (Greul, 1997; Greul et al., 1996, 1997), sewage sludge (Rüdiger et al., 1996a; Storm et al., 1998a) or biomass (Rüdiger et al., 1996b; Storm et al., 1999a) for NOx reduction are published elsewhere. To get information about the path of different feedstock components during pyrolysis, the quality and quantity of pyrolysis char has been analyzed and reported in (Storm et al., 1998a,b; 1999a,b).

CITADO POR
  1. Oh Hyukjin, Annamalai Kalyan, Sweeten John M., Heflin Kevin, Reburning of Animal Waste Based Biomass with Coals for NOx Reduction, Part II: Dairy Biomass (DB) and Coal–DB Blends, Energies, 14, 23, 2021. Crossref

Próximos artigos

APPLICATION OF MICROBIAL FUEL CELL FOR CASSAVA FERMENTATION WASTEWATER TREATMENT Anwar Ma'ruf, Agus Mulyadi Purnawanto, Latiful Hayat, Novi Astuti Experimental and regression analysis of C. I engine powered by diesel surrogate fuel from waste lubricating oil using microwave pyrolysis Mohammad Nematullah Nasim, Ravindra Babu Yarasu, Satish J. Suryawanshi PREFACE sachindra Rout, Kamalakanta Muduli, Jnana Ranjan Senapati, Aruna Kumar Behura Thermal analysis and Improvement of Municipal Solid Waste Syngas Combustion applied on Micro Gas Turbine Amornrat Kaewpradap, Sumrerng Jugjai Numerical simulation of turbulent flow in a heat exchanger equipped with fins of different materials and geometries Abin Roy, Uddala Sreekanth, Joel Ashirvadam, Saboor Shaik, Aruna Kumar Behura, Bibin B.S Low-Cost Photovoltaic Emulator With a High-Dynamic Response for Small Satellite Applications Mauricio Troviano, Germán G. Oggier Collection efficiency analysis and structure optimization of fugitive fumes from aluminum electrolysis based on multi-field coupling Shuichang Liu, Qingyu Wang, Yong Zhang, Fengzhao Mao, Huijuan Zhao, Xindan Hu Transient Analysis of Liquid Hydrogen Transfer in Cryogenic Storage Tanks Ahmad M. Mahmoud, William E Lear, SA Sherif Pure Ammonia Combustion in a Bidirectional Swirling Flow Alexander Igorevich Guryanov, Oleg A. Evdokimov, Vladimir Burtsev, Nikita Burtsev, Sergey Veretennikov, Valeriy Koshkin CFD modeling of the combustion of Ukrainian coal and biomass in a flare boiler unit TPP-210a Alexandr Baranyuk, Nataliya Dunayevska, Artur Rachinsky, Nikita Vorobyov, Petro Merenger, Evgeniy Shevel An Experimental Study of the Cooling Efficiency on Curved Surfaces with Different Shaped Holes Sergey Veretennikov, Oleg Evdokimov, Anna Kolesova Employing Granulated Bimetallic Nanocomposite of Ni/Cu@CuMOF Nanocomposite in Steam Reforming of Methanol Process for Hydrogen Production Mohammad Saleh-Abadi, Mohsen Rostami, Amir Hamzeh Farajollahi, Rasool Amirkhani, Mahdi Ebrahimi Farshchi, Mahdi Simiari INVESTIGATION THE PERFORMANCE OF AN EVACUATED TUBE SOLAR COLLECTOR FILLED WITH AL2O3/WATER NANOFLUID UNDER THE CLIMATE CONDITIONS OF AL-HILLA(IRAQ) Nagham Albakry, Ahmed Kadhim Hussein The effect of carbonization temperature on the properties of carbonaceous material obtained from ethylene-propylene-diene-monomer (EPDM) wastes Muhammet Ramazan Eren, Işıl Güneş, Esin Varol THE SOCIAL COST OF CARBON EVALUATION BASED ON CARBON CAPTURE AND STORAGE TECHNOLOGIES FOR POWER GENERATION PLANTS Okan Kon, Ismail Caner
Portal Digital Begell Biblioteca digital da Begell eBooks Diários Referências e Anais Coleções de pesquisa Políticas de preços e assinaturas Begell House Contato Language English 中文 Русский Português German French Spain