A kind of method that prepares fuel by water hyacinth

Abstract

The invention relates to a method for preparing a fuel from eichhornia crassipes (mart.) solms. The method comprises: crushing eichhornia crassipes (mart.) solms into powder, drying until the water is completely lost, extracting the eichhornia crassipes (mart.) solms powder sequentially with a toluene-ethanol mixing solution, a high concentration sodium hypochlorite solution, a sodium hydroxide solution, a low concentration sodium hypochlorite solution and a hydrochloric acid solution to obtain cellulose, preparing an oxidized alloy catalyst, introducing a protection gas into a reactor kettle, and carrying out a hydrogenolysis reaction on the obtained cellulose and methanol under the effect of the oxidized alloy catalyst to obtain the fuel. Compared to the method of the present invention, the method of the present invention has the following characteristics that the cellulose is obtained from the eichhornia crassipes (mart.) solms by using the chemical treatment method, the oxidized alloy catalyst is prepared through self-preparation, and the obtained cellulose and the methanol are subjected to the hydrogenolysis reaction under the effect of the oxidized alloy catalyst, wherein the cellulose is prepared into the gas-state and liquid-state fuel, and the characteristic that the eichhornia crassipes (mart.) solms is adopted as the biological energy source is utilized; and the method has advantages of simple preparation, short process and high added value, and is suitable for large-scale popularization.

Description

technical field [0001] The invention belongs to the technical field of bioenergy, and in particular relates to a method for preparing fuel from hyacinth hyacinth. Background technique [0002] Water hyacinth, commonly known as water hyacinth, is a floating herb with well-developed fibrous roots. The flooding of water hyacinth will cause the following hazards: [0003] 1. Block waterways, affect shipping and excretion, and become the number one enemy of agriculture, water conservancy and environmental protection. [0004] 2. The flow of the water body is restricted, and the water body becomes stinky without sunlight, which reduces the dissolved oxygen in the water body, inhibits the growth of plankton, and destroys the ecological environment of the river. [0005] 3. It provides a breeding ground for germs such as schistosomiasis and encephalitis influenza, breeds mosquitoes and flies, and provides opportunities for mosquito larvae to breathe and reproduce. [0006] 4. Des...

AI Technical Summary

Problems solved by technology

[0003] 1. Block waterways, affect shipping and excretion, and become the number one enemy of agriculture, water conservancy and environmental protection

[0004] 2. Restricting the flow of the water body, the water body is not exposed to sunlight and becomes stinky, which reduces the dissolved oxygen in the water body, inhibits the growth of plankton, and destroys the ecological environment of the river.

[0006] 4. Destruction of drinking water resources

[0007] 5. Water hyacinth covers the water surface and increases the evaporation of water, which is 8-10 times higher than that of open water surface, resulting in loss of water source

A large number of water hyacinths covering the water surface will reduce the PH value of the water; the concentration of CO2 will increase; the odor concentration and chroma of the water will increase; the acidity of the water will also increase, which will greatly reduce the use value of water resources until it is undrinkable

[0009] 7. The outbreak of water hyacinth and its decay stage will consume a large amount of dissolved oxygen in the water body at the same time, and underwater animals such as fish will have less activity and reproduction space, and even a large number of fish will die

[0010] At present, there are many ways to prevent the water hyacinth from flooding, mainly in the following categories: one is chemical control, which requires the addition of chemical reagents, which will destroy the ecological balance at the same time; the other is biological control, which maintains water hyacinth by introducing natural enemies The number of lotus, but the effect is slow, at least 3-5 years; the third is artificial and mechanical control methods, through manual or mechanical salvage treatment of water hyacinth, quick effect, but when the occurrence area is large, the labor intensity is high

In fact, these methods do not effectively use water hyacinth, but only limit its quantity. At most, water hyacinth is used as fertilizer or waste, and there is no technology related to the use of its bioenergy.