System for producing fuel ethanol by using solar energy

Abstract

The invention provides a system for using solar energy to produce ethanol, which is composed of a solar energy water heater, a solar energy steam boiler, a steam rice-cooker, a fermentor, a crude distiller, a rough distillate ethanol storage, a rough distillate ethanol heater and a fine distillation apparatus. The system does not consume other energy resources except for the solar energy, which can completely solve the problem that ethanol production consumes non-renewable energy and can sufficiently use the solar energy to produce the ethanol, thereby the ethanol production can be finished in mountainous regions and remote regions on the spot, and the contradiction that ethanol raw materials strives earth with grain is completely solved, which enables ethanol fuel production to realize scale sustainable development. Since the system of the invention adopts the solar energy water heater and the solar energy steam boiler as heat sources, hot water and steam are respectively provided for pre-heating, heating and distilling relative materials without electrical energy, which not only saves the investment and has low manufacturing cost, but also has short production period, high working efficiency, large ethanol output and high purity, and the system is suitable for extending and applying in regions with long solar energy illumination.

Description

technical field [0001] The invention relates to an ethanol production system, in particular to a system for producing ethanol using solar energy as energy. Background technique [0002] Ethanol is a renewable resource that can be processed from crops. Studies have shown that ethanol is a better choice to replace gasoline fuel, and it can be used as a power fuel for automobile engines. Therefore, in today's society where oil is increasingly scarce, people pay more and more attention to the production of ethanol, and there is a trend of large-scale development. In the process of ethanol production, the raw materials—that is, food crops are usually fermented, and then the fermented liquid is heated to convert it into water vapor and ethanol vapor, so that ethanol is separated from the fermented liquid, and then used in subsequent Distillation and rectification processes process ethanol to obtain high-purity ethanol. Since traditional heating methods mostly use non-renewable e...

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Problems solved by technology

[0006] In order to solve the shortage of fuel oil and overcome the problems of large energy consumption and land competition with grain in existing ethanol production, the purpose of this invention is to provide a system for producing ethanol using solar energy, so that ethanol production no longer consumes energy and does not compete with grain Cultivated land, and can also be produced in areas with underdeveloped transportation and lack of energy

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