In response to the US government’s recently announced ethanol fuel development funding project, energy experts believe that gasification technology will become a key process for ethanol fuel production. This shows that the gasification technology used in the coal industry is also very useful in the field of renewable energy.
Last week, the U.S. Department of Energy announced that it had allocated 385 million U.S. dollars to fund 6 projects related to ethanol fuel development to promote the production of ethanol fuel from non-traditional energy materials such as sawdust, switchgrass and citrus peel. Three of these projects were used by the coal industry. Gasification technology process. The energy experts explained that this move shows that the government attaches great importance to the application of gasification technology in the field of renewable energy.
According to reports, in the process of preparing ethanol fuel, the gasification technology process is mainly realized by converting the plant raw material and the catalyst into a synthesis gas through a gasifier. This syngas mainly contains monoxide and hydrogen. After further processing, it can be converted into various fuels including ethanol and hydrogen, as well as various environmentally friendly diesel and gasoline. Gasifier is a high-tech reactor that can generate high pressure gas. It can be automatically adjusted according to the change of feeding conditions. It has the ability to convert various biological raw materials into fuel.
Many scientists believe that gasification technology will provide more efficient, more economical and environmentally friendly processes than current ethanol fuel production processes, and it is suitable for the production of a variety of renewable energy fuels. On the one hand, the gasification technology helps to reduce the cost of the fermentation process and solve the problem that the biological raw materials cannot release starch easily in the fermentation process. Currently, a relatively expensive reactor is needed in the fermentation process to solve this problem. On the other hand, the syngas produced directly by the gasification process can easily be converted into other fuels, chemicals and materials. In addition, the long-term application of gasification technology in the coal industry indicates that it is also an environmentally friendly technology.
What is more interested in the Department of Energy is that gasification technology can solve the current problem of the United States relying too much on corn to produce ethanol fuel, and expanding the sources of biofuels other than corn. In view of President Bush’s renewable energy fuel target, the United States is currently pursuing a factory for producing ethanol fuel from corn, and the report from the US Department of Agriculture believes that in 2007, half of US corn production will be used to produce ethanol. Induced a red alert on corn food security.
Officials of the Ministry of Energy stated that the application of gasification technology in the field of renewable energy has shown good feasibility. In 2001, a U.S. plant that used wood chips as raw material to produce ethanol fuel had the capacity to produce 200 megawatts of electricity per day. However, in order to promote the competitiveness of the gasification process, it is also necessary to increase the optimization of the catalysts in order to better reduce the production cost of the process.
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