BioenergyBR

The pyrolysis of biomass is a thermal treatment that results in the production of charcoal, liquid, and gaseous products. Among the liquid products, methanol is one of the most valuable products. Methanol can be used as one possible gasoline replacement for conventional gasoline and diesel fuel. Methanol can be produced by pyrolysis of biomass. Methanol mainly arises from methoxyl groups of uronic acid and from the breakdown of methyl esters and/or ethers from decomposition of pectin-like plant materials. The maximum methanol yields (12.19% at 825 K) for hazelnut shell was obtained from a Na2CO3 (30% of dried sample) catalytic flash pyrolysis run. The yields of liquid products from the samples increased with an increasing of the amount of Na2CO3 from 10% to 30%. The maximum liquid yield from yellow pine was 51.2% at 875 K. The yields of liquid products from the samples depended on the amount of K2CO3 and the temperature. The maximum liquid yield from yellow pine was 49.5% from a 30% K2CO3 catalytic run at 875 K. The catalytic effect of Na2CO3 was slightly higher than that of K2CO3 for hazelnut shell, tea waste, and yellow pine samples.

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sustainablelorgbiofuel

Operating Engines on Woodgas by Bill Olsen

Calcined dolomite is a good catalyst in terms of its activity for gasification of residue derived from biomass hydrolysis for hydrogen production, whereas its fragility can cause trouble during operation. A novel modification method aimed at improving the strength of the calcined dolomite has been presented using magnesium nitrate as the modifier, which was introduced into the dolomite via a co-precipitation process. The strength of the modified dolomite can be up to 250 times as high as the unmodified one and can cause much less bed pressure drop and catalyst loss, though the activity is slightly lowered after modification. Keywords: calcined dolomite modification; catalytic gasification; hydrogen production; biomass hydrolysis; bioenergy; magnesium nitr

DF] Microsoft PowerPoint - Green ChE Short Course presentation.ppt Formato do arquivo: PDF/Adobe Acrobat - Ver em HTML Tier 2 Tools: To evaluate the process flowsheet ... Methanol or. DME. DME Plant ... 1-5% of carbon in biomass can. become tar. - Tar compounds are hazardous ... www.chemprocess.chalmers.se/dokument/greenche.pdf - Páginas Semelhantes [PDF] Optimal process design for thermochemical biofuel production plants Formato do arquivo: PDF/Adobe Acrobat - Ver em HTML Meeting the thermodynamic design target for the flowsheet .... Compression. Compression. Torrefaction. Biomass. DME synthesis. CH3OCH3. FT synthesis ... infoscience.epfl.ch/record/104235/files/LENI_AGS2007_poster_protected.pdf - Páginas Semelhantes

Power generation by biomass fuels gasification and its comprehensive utilization is a rising industry. Our company specially recruit Mr. Guo Dezhang, expert and patent owner in this field, to research and design newly type complete set of equipment of biomass gasification power generation in order to reduce the fuel cost for the users and improve the efficiency of energy exchange. According to users needs, safe and reliable computerized controlling system can be designed. For the ash residue of the burned materials, it can be used to produce white carbon black, activated carbon and machine carbon, which can make comprehensive use of recycling energy and helpful to harmonious development of human being and nature.

Producing fuel alcohol via hydrolysis of lignocellulosic biomass leaves a considerable amount of residues waiting for treatment. A study was carried out on the preparation of hydrogen via catalytic gasification of residues from biomass hydrolysis with a novel Ni/modified dolomite binary catalyst, which was prepared by a two-step coprecipitation method and proved available for hydrogen production in terms of both activity and strength. The effects of four operation parameters, that is, the fluidized bed temperature, the catalytic fixed bed temperature, the particle size of the catalyst, and S/B (i.e., the mass ratio of steam to biomass material fed into the fluidized bed per unit time), on hydrogen yield were investigated. The results indicate that hydrogen yield increases with an increase in the temperature of either the fluidized bed or the downstream catalytic fixed bed or the S/B ratio or a reduction in the particle size of the catalyst. The optimum range for each of the four operation parameters from a comprehensive consideration is as follows: 800-850 °C for both the fluidized bed temperature and the catalytic fixed bed temperature, 1.5-2 for the S/B ratio, and 2.0-3.0 mm for the particle size of the catalyst. Furthermore, the gas product from catalytic gasification of residues from biomass hydrolysis contains less CO and CO2 and has a higher H2/CO ratio compared with that of the sawdust. The hydrogen yield of the former is also much higher than that of the latter. These suggest that residues from biomass hydrolysis are an even better gasification material than the original sawdust. This paper provides a novel effective method for modifying the calcined dolomite, which endows the catalyst with satisfactory strength while retaining high activity, and opens a new promising way for utilizing the residues from biomass hydrolysis. Download the full text: PDF | HTML

XIV Workshop - Produção de Etanol: Qualidade da Matéria-Prima XIII Workshop - Impactos da Evolução do Setor XII Workshop - Aspectos Ambien

PDF] A Hybrid Gas Cleaning Process for Production of Ultraclean Syngas Formato do arquivo: PDF/Adobe Acrobat - Ver em HTML However, because activated carbon and molecular sieve. absorbents must be used at ambient .... desirable for our proposed syngas cleaning process. ... www.osti.gov/energycitations/servlets/purl/837307-eWgBqG/native/837307.pdf - Páginas Semelhantes

[PDF] Microsoft PowerPoint - EML4450L26 Formato do arquivo: PDF/Adobe Acrobat - Ver em HTML Circulating fluidized bed (CFB) and integrated gasification combined cycles ... total energy production. 113412 TJ. USA Bioenergy Sources. Biomass type: ... sesec.fsu.edu/documents/lectures/ECS2005/Bioenergy.pdf - Páginas Semelhan

BEST Pyrolysis, Inc. | Slow Pyrolysis - Biomass - Clean Energy ... - [ Traduzir esta página ] BEST Energies' Slow Pyrolysis technologies allow the concurrent production of multiple energy streams including syngas for electrical generation, ... www.bestenergies.com/companies/bestpyrolysis.html - 35k - Em cache - Páginas Semelhantes - Anotar isso BEST Energies, Inc. | Clean Energy from Biomass Waste Resources ... - [ Traduzir esta página ] BEST Energies, Inc. - BEST BioDiesel - BEST Pyrolysis - BEST BioDiesel Cashton, Wisconsin - BEST Energies Australia. BEST Energies, Inc. is a leader in the ... www.bestenergies.com/ - 35k - Em cache - Páginas Semelhantes - Anotar isso Mais resultados de www.bestenergies.com »

How Anaerobic Digestion (Methane Recovery) Works Biodigesters recover methane from animal manure through a process called anaerobic digestion. Here's how it works.

arbon Dioxide Removal Print Page Fossil fuels are the primary sources of carbon dioxide emissions to the atmosphere. Much of the anticipated worldwide effort to reduce carbon dioxide emissions will focus on large point sources such as power plants and petroleum refineries. To contribute to this effort, RTI is actively engaged in a research and development project to develop a new process for removing carbon dioxide from industrial gas streams. RTI's process uses a solid, regenerable, sodium-based adsorbent to remove carbon dioxide from flue gases that fuel power plants. The regeneration of this sorbent produces a gas stream containing only carbon dioxide and water. Condensation separates the water out, leaving a pure carbon dioxide stream that can be used or sequestered. One of the relevant reactions based upon the use of sodium bicarbonate as the sorbent precursor is as follows: 2NaHCO3(s) Na2CO3(s) + CO2(g) + H2O(g) RTI has developed a 2-reactor system for removing the carbon dioxide. Both the adsorption of carbon dioxide and regeneration of the sorbent take place at low temperature (under 150°C). Laboratory experiments at RTI have demonstrated multiple cycles of the adsorption and regeneration phases. In addition, we have developed process information on * Effect of operating conditions * Effect of other feed stream components * Reaction kinetics * Heat and material balances from proc

Conference * 1: Quotes of the Speakers of the Opening Session. * 2: Programme Outline. * 3: Programme per Day. * 4: Opening Session. * 5: Organisation/ Companies Registered. * 6: Conference on Biomass in Spain - Thu. 5th June 2008. * 7: Biomass Industry Day on Tuesday 3rd June 2008. * 8: Conference Topics. * 9: Committees. * 10: Winners

Boletim PCIA #14 Faça aqui o download do boletim informativo número 14 da Partnership for Clean Indoor Air (PCIA), rede que reúne quase 200 organizações de todo mundo que trabalham com soluções para acabar com o perigo da poluição intra-domiciliar. O IDER faz parte da PCIA por conta do projeto de disseminação de fogõe

next terra technology

An improved process is provided for the removal of sulfur oxides from gas or vapor media containing oxygen and water by contacting said media with a catalytically-active carbonaceous char. The improvement is provided by the use of a catalytically-active carbonaceous char prepared by low-temperature carbonization and oxidation of a bituminous coal or bituminous coal-like material followed by exposure to a nitrogen-containing compound during the initial high-temperature exposure of the low-temperature oxidized char. Following this initial high-temperature treatment the material can be further calcined or activated as desired.

Economical CO2, SOx, and NOx capture from fossil-fuel utilization with combined renewable hydrogen production and large-scale carbon sequestration Danny Daya, Corresponding Author Contact Information, E-mail The Corresponding Author, Robert J. Evansb, James W. Leec and Don Reicoskyd aEprida, Inc., 6300 Powers Ferry Road, Suite 307, Atlanta, GA 30339, USA bNational Renewable Energy Laboratory, 1617 Cole Blvd, Golden, CO 80401, USA cOak Ridge National Laboratory, 4500N, A16, MS-6194, Oak Ridge, TN 37831, USA dUSDA-Agricultural Research Service, 803 Iowa Avenue, Morris, MN 56267, USA Available online 17 November 2004. Purchase the full-text article References and further reading may be available for this article. To view references and further reading you must purchase this article. Abstract The objective of this project was to investigate and demonstrate production methods at a continuous, bench-scale level and generate sufficient material for an initial evaluation of a potentially profitable method of producing bioenergy and sequestering carbon. The novel process uses agricultural, forestry, and waste biomass to produce hydrogen using pyrolysis and reforming technologies conducted in a 50 kg/h pilot demonstration. The test runs produced a novel, nitrogen-enriched, slow-release, carbon-sequestering fertilizer. Seven kilograms of the material were produced for further plant growth response testing. A pyrolysis temperature profile was discovered that results in a carbon char with an affinity for capturing CO2 through gas phase reaction with mixed nitrogen-carrying nutrient compounds within the pore structures of the carbon char. A bench-scale project demonstrated a continuous process fluidized-bed agglomerating process. The total amount of CO2 sequestration was managed by controlling particle discharge rates based on density. The patent-pending process is particularly applicable to fossil-fuel power plants as it also removes SOx and NOx, does not require ene