This work presents the modeling and thermodynamic analysis of two novel small-scale polygeneration systems that are capable simultaneously converting residual biomass to methanol (MeOH), electricity, heat a CO2-rich stream for agricultural greenhouses. The first system is based on downdraft gasifier, while second relies dual fluidized bed (DFB) gasifier. Both configurations leverage H2, O2, ele...

biofuels are the main substitute to fossil fuels. these fuels are less polluting in compari-son to fossil fuels and can be produced from agricultural material residues for use in die-sel engines. in this research work bioethanol was produced from potato waste. it was de-hydrated in a vapor phase using 3a zeolite and was used in combination with sunflower methyl ester oil and diesel fuel blendin...

A novel paper-based biofuel cell with a series/parallel array structure has been fabricated, in which the cell voltage and output power can easily be adjusted as required by printing. The output of the fabricated 4-series/4-parallel biofuel cell reached 0.97±0.02 mW at 1.4 V, which is the highest output power reported to date for a paper-based biofuel cell. This work contributes to the developm...

The past decade has seen rapid growth in the global biofuels sector – particularly in the US and the EU. This has had important implications for the global livestock industry – both by raising the cost of feed grains and oilseeds and by forcing onto the market a large supply of biofuel by-products, many of which end up in livestock feed rations. This paper systematically investigates the impact...

This research paper examines the feasibility for second-generation biofuels as an alternative fuel supply for both pistonand turbine-powered general aviation aircraft. With relevant research given to the history of biofuels and their technologic development, this paper aims to provide an analysis of biofuel development, biofuel technology and its potential impacts, specifically for the aviation...

This paper presents an assessment of the potential impact of the EUs biofuel directive on European land use and biodiversity. In a spatially explicit analysis, it is determined which ecologically valuable land use types are likely to be directly replaced by biofuel crops. In addition, it is determined which land use types may be indirectly replaced by biofuel crops through competition over land...

Since late 2006, biofuel policies have caused high grain/oilseed prices by creating a link between crop and biofuel policies. The value of agricultural trade has increased sharply, mostly because of high prices, not increased trade volume. Biofuel policies have little to do with the agenda of the Doha trade negotiations but have had indirect effects in that production subsidies and import barri...

BACKGROUND C1 substrates (such as formate and methanol) are promising feedstock for biochemical/biofuel production. Numerous studies have been focusing on engineering heterologous pathways to incorporate C1 substrates into biomass, while the engineered microbial hosts often demonstrate inferior fermentation performance due to substrate toxicity, metabolic burdens from engineered pathways, and p...

BACKGROUND We previously cloned a 1,3-specific lipase gene from the fungus Rhizomucor miehei and expressed it in methylotrophic yeast Pichia pastoris strain GS115. The enzyme produced (termed RML) was able to catalyze methanolysis of soybean oil and showed strong position specificity. However, the enzyme activity and amount of enzyme produced were not adequate for industrial application. Our go...