Ukrainian Biofuel Portal
| Home | Sell offers | Buy offers | Companies | Members | ARTICLES | Login | Stats | Contact Us | Russian |
| POST OFFER FREE | Welcome Guest, Please LOGIN to your account or SIGNUP with us to post your business offer |
|
|
Biofuel Production Is Economical Even When Importing The Raw Materials Liquid fuels can be produced economically from biomass right now even if all the raw materials - such as grasses and wood - must be imported from other countries.Robin Zwart and colleagues in The Netherlands reach that conclusion in a study in the current (September/October)... Read articleCongress defies Bush on biomass reserve The House of Representatives voted to direct the Bush administration to stop filling the strategic biomass (wood chips) reserve temporarily in an effort to alleviate increasing gas prices.Stopping deposits to the biomass (wood chips) reserve is estimated to save drivers between... Read articlePotential of Bulgarian biomass from wood processing industry The wood processing industry is one of the major sectors of the Bulgarian light industry. There is high growth of the sector in the last years. The output in 2004 is 2 times higher than in 2001. This growth indicates high potential for future development, which will depend... Read articleRenewable Energy Potential in Bulgaria There were several studies on the potential for renewables in Bulgaria which show that the potential is considerable (see the table below). However, in the National Long-term Programme for the Promotion of Renewable Energy Sources (2005-2015), the evaluation of the accessible... Read articleBulgaria is located in the South-eastern Europe on a territory of 111 thousands km2. Its population is about 7.7 millions (2004). In the Northern part of the country the climate is temperate continental and in the Southern part the influence of the Mediterranean climate can be... Read article Report on the perspectives to the development of the biomass potential This Report on the perspectives to the development of the biomass potential, together with Databases and maps on biomass potential, are deliverables to Work package 3 (WP 3) of ACCESS project. The aim of this WP is to help different stakeholders (such as producers, consultants,... Read articleThe booming succes of agripellets in European Countries such as Austria, Denmark and Sweden, has yet to be replicated elsewhere. In Southern Europe countries, the lack of available wood waste means that agripellets from agricultural residues ("agri-pellets") are the most... Read article Advantages/Disadvantages to Pellet Stoves The main reasons why pellet stoves are in such demand is because they cleaner, safer, and more convenient than wood burning stoves. For environementally sensitive folks, the pellet stove produces less air pollution than wood stoves. Also, instead of having to carry heavy, dirty... Read articleThe Harman P68 Pellet Stove ($2800) is an award winning stove that combines a great new look and the latest technology. Harman has the best name in pellet stoves and consumers have come to recognize them for their performance and reliability. The P68 won the Vesta Award recently... Read article Pellet stoves produce small fires, that burn hot and they work well in homes as well as apartments or condo. When compared to a traditional wood burning stove, a pellet stove is way more convenient to run and the their heating and combustion efficiencies are much higher. Looking... Read article The Technologies of Biomass and Coal Co-Combustion in Pulverized-Coal Furnaces Dunaevskaya N.I., Zasyadko Y.I., Shupik I.S., Schudlo T.S. Coal Energy Technology Institute of NAS and Ministry of Fuel and Power of Ukraine, Kiev The review material of biomass and coal co-combustion technologies current status in USA and industrial European countries is... Read articlePellets are taking off in Europe and starting to encroach elsewhere Pellets have become an economically interesting alternative fuel since 2004, when the oil price started to increase sharply. The Austrian-originated technology is spreading to neighbouring countries, with sales of pellet heating systems increasing up to 300% in some European... Read articleTorrefaction temperature and torrefaction time (reaction time) Difficulties in interpreting the torrefaction process may arise from the definition of the torrefaction time. The term residence time is frequently used, but it only expresses the hold-up time of biomass in a torrefaction reactor. It does not tell how long actual torrefaction... Read articleTorrefaction process definitions In biomass energy applications, torrefaction aims for the production of a fuel having improved properties compared to the original biomass feed. However, this should be achieved without losing too much chemical energy to volatile products during the process. Hence, the mass... Read articleDecomposition mechanisms during torrefaction From the three main polymeric constituents of biomass, cellulose has received most attention considering the thermal decomposition of biomass. Especially since the cellulose fraction is large. Therefore, in pyrolysis research cellulose decomposition is very important, but as... Read articleCell structure of biomass (lignocellulose) Part VI Cell structure of biomass (lignocellulose) Part VI Cell structure of biomass (lignocellulose)Lignocellulose is another word for biomass that originates from plants. It generalises the structure of plants to the three main sugar-based polymeric structures; cellulose,... Read articleTorrefaction of biomass Part V Torrefaction of biomass Torrefaction is a thermochemical treatment method in the first place earmarked by an operating temperature within the range of 200 to 300 ?°C. It is carried out under atmospheric conditions and in the absence of oxygen. The name torrefaction is adopted... Read articleTorrefaction for entrained-flow gasification of biomass Part IV 1.1 Problem formulation Desk studies have identified entrained-flow gasification as a promising option for the large-scale production of syngas from biomass. This biosyngas then is a versatile feedstock for the production of transportation fuels, chemicals and electricity.... Read articleTorrefaction for entrained-flow gasification of biomass Part III Desk studies have identified entrained-flow gasification as a promising option for the large-scale production of syngas from biomass. This biosyngas then is a versatile feedstock for the production of transportation fuels, chemicals and electricity. However, an entrained-flow... Read articleTorrefaction for entrained-flow gasification of biomass Part II A major technical obstacle in entrained-flow gasification of biomass concerns the size reduction and the subsequent pneumatic transport of the biomass powder. The fibrous structure of fresh biomass makes it very difficult and costly to reduce its particle size down to below 500... Read articleTorrefaction for entrained-flow gasification of biomass Part I P.C.A. Bergman, A.R. Boersma, J.H.A. Kiel, M.J. Prins, K.J. Ptasinski, F.J.J.G. Janssen Acknowledgement / Preface Biomass, in particular wood, has historically been an important energy source for fires, ovens and stoves. In the industrialization period of the late 19th century,... Read article |
