In accordance with the objective to construct a major province in grassland animal husbandry,the following ways were used for enhancing development,improving the scientific and technological content,increasing the sca...In accordance with the objective to construct a major province in grassland animal husbandry,the following ways were used for enhancing development,improving the scientific and technological content,increasing the scale of the industry and market development to set up our own ecological grass industry brand and finally reach sustainable development strategy.This paper discussed the status of Guizhou Province grass industry development from the grass industry resources,grassland and animal husbandry production,prataculture technology problem.展开更多
US EPA recently issued the final definition for a renewable fuel establishes rule for the revised Renewable Fuel Standard RFS the compliance for each part of its name： （i） to II （Renewable Fuel Standard）. The mai...US EPA recently issued the final definition for a renewable fuel establishes rule for the revised Renewable Fuel Standard RFS the compliance for each part of its name： （i） to II （Renewable Fuel Standard）. The main be a fuel and （ii） to be produced from renewable biomass. This paper addresses the challenges faced by biomass derived fuels on meeting the specifications of those fuels （gasoline, diesel and heating oil）. Biomass-derived products contain oxygenates, some of which might enhance certain fuel specifications, but some others may have deteriorating effects. On directly derived from biomass pyrolysis have been demonstrated to the basis of available data published in the literature, the fuels be far from the concept of ＂substantially similar＂ transportation fuels. Upgrading is required to convert pyrolysis products into fuels that meet specifications. The economical viability of upgrading still faces confirmation, and imposes several technical challenges for truly attractive cost-effective approaches.展开更多
文摘In accordance with the objective to construct a major province in grassland animal husbandry,the following ways were used for enhancing development,improving the scientific and technological content,increasing the scale of the industry and market development to set up our own ecological grass industry brand and finally reach sustainable development strategy.This paper discussed the status of Guizhou Province grass industry development from the grass industry resources,grassland and animal husbandry production,prataculture technology problem.
文摘US EPA recently issued the final definition for a renewable fuel establishes rule for the revised Renewable Fuel Standard RFS the compliance for each part of its name： （i） to II （Renewable Fuel Standard）. The main be a fuel and （ii） to be produced from renewable biomass. This paper addresses the challenges faced by biomass derived fuels on meeting the specifications of those fuels （gasoline, diesel and heating oil）. Biomass-derived products contain oxygenates, some of which might enhance certain fuel specifications, but some others may have deteriorating effects. On directly derived from biomass pyrolysis have been demonstrated to the basis of available data published in the literature, the fuels be far from the concept of ＂substantially similar＂ transportation fuels. Upgrading is required to convert pyrolysis products into fuels that meet specifications. The economical viability of upgrading still faces confirmation, and imposes several technical challenges for truly attractive cost-effective approaches.
