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營口翻譯公司關(guān)鍵字：In most cases, the application of plant-based materials is mainly original state molecules. Such as lignin fibers, vegetable oil and rubber and other complex molecules, only a limited modification of the application. This and the petrochemical 標(biāo)書制作行業(yè)industry constitutes a significant contrast, petrochemicals are used by chemical methods need to be cleaved into several simple hydrocarbon molecules such as methane, propylene, etc. With these basic raw materials for chemical synthesis, manufacturing complex molecules needed.In a few cases, plants / crops, raw material basis for cracking into different molecules, such as high fructose corn syrup and corn starch fermentation to produce fuel ethanol. In 1996 the United States with 21.1 billion pounds (1 pound = 0.4536 kg, the same below) using the new enzyme fermentation of corn product翻譯招投標(biāo)書費(fèi)用和報(bào)價(jià)ion 900 million gallons (1 gallon = 4.546L, the same below) of ethanol, thereby processing the mixture of 9 billion gallons of gasoline. In many instances of view, plant-based raw materials have a certain relevance, although not producing as highly specialized as drug molecules, but it includes a lot of the product翻譯招投標(biāo)書費(fèi)用和報(bào)價(jià)ion of intermediates and product翻譯招投標(biāo)書費(fèi)用和報(bào)價(jià)s.2, supply and qualityWide geographical distribution of plant 外文標(biāo)書翻譯systems, due to different soil and climatic conditions, leading to differences in supply and quality. The development of forest and agricultural 外文標(biāo)書翻譯systems has narrowed differences in the supply of natural wild plants.Biomass product翻譯招投標(biāo)書費(fèi)用和報(bào)價(jià)ion, while significant, but the absence of economic transformation technology limited its application. Some new advances, such as from fast pyrolysis offers the opportunity to obtain low molecular weight product翻譯招投標(biāo)書費(fèi)用和報(bào)價(jià)s, if further innovation in separation technology, you can push this application. Biomass resources can come from the rapid growth of timber, Tanabe, and other specialized crops cultivated plant species. Another potential biomass resources is currently grown for food and feed crops such as corn, soybeans, wheat and sorghum. Under normal circumstances the application of these crops is only half of its product翻譯招投標(biāo)書費(fèi)用和報(bào)價(jià)ion. The four kinds of crops is estimated that each acre (1 acre = 0.405 ha, the same below) of about 2600 pounds (in dry matter, the same below) left in the field, a total of about 5200 million pounds. Part of the land to remain in the improvement of soil structure, but most shipped out as raw materials applications. Therefore require appropriate, low-cost storage 外文標(biāo)書翻譯systems and processing technology.The main problem is supply the original product翻譯招投標(biāo)書費(fèi)用和報(bào)價(jià)ion management項(xiàng)目標(biāo)書翻譯. Currently, the trees can be used for timber and pulp, planting crops just for food, feed and fiber processing, not on the utilization optimization. Plant / crop input cost evaluation is based on a non-optimized plant product翻譯招投標(biāo)書費(fèi)用和報(bào)價(jià)ion 外文標(biāo)書翻譯system, the poor economy. Some marginal land can expand the use of plant-based renewable resources of raw materials base. But from an economic comparison, it is difficult to achieve economically viable targets. In estimating the economic returns, to consider the chemical fertilizers, pesticides and other chemicals, the use of fees. To increase the sources of renewable resources, in addition to increased utilization of marginal land, the main how farmland should be established to optimize plant product翻譯招投標(biāo)書費(fèi)用和報(bào)價(jià)ion 外文標(biāo)書翻譯systems.
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