Efficient energy-saving biodiesel catalyst and preparation method thereof

Abstract

The invention discloses an efficient energy-saving biodiesel catalyst and a preparation method thereof, and relates to the technical field of catalysts. The catalyst is prepared from the following raw materials: methanesulfonic acid, chlorosulfonic acid, modified aluminum oxide, glycerol, fatty sulfonic acid, phosphoric acid monoester, stannic chloride, polyether acid type phosphate and propargyl alcohol. Aluminum oxide is modified, the aluminum oxide is modified mainly by utilizing an auxiliary agent, and the auxiliary agent can accurately and highly selectively react with an alkaline site of the aluminum oxide; therefore, the alkalinity of the aluminum oxide is reduced; the catalyst does not perform physical or chemical action with other active sites of the alumina, so the crystal structure, pore structure and other physical and chemical properties of the alumina are not changed, only the alkali property can be adjusted, other characteristics of the alumina are not changed basically, and the application stability of the alkali in a catalyst is effectively improved; the environment is not polluted, the corrosion and saponification phenomena are avoided, the synthesis process is simple, and the production cost is low.

Description

technical field [0001] The invention relates to the technical field of catalysts, in particular to a high-efficiency and energy-saving biodiesel catalyst and a preparation method thereof. Background technique [0002] With the rapid development of the global economy, the sharp reduction of oil reserves while the demand for energy continues to grow, and the environmental pollution caused by the combustion of fossil fuels is becoming more and more serious. Therefore, the development of new green renewable fuel resources has become the most important It is an issue of widespread concern and a hot topic in the research of new energy production technology. Biodiesel is a kind of biomass energy, which has the advantages of biodegradability, complete combustion, and less harmful substance emissions. It is currently the only renewable and clean fuel that can replace petrochemical diesel in the world. It is known as "green gold". Due to its advantages of simple degradation, no emiss...

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Problems solved by technology

[0003] Biodiesel is an environmentally friendly green fuel, but the biodiesel preparation process uses an unfriendly catalyst, which itself is not in line with the design of green chemistry, especially after the reaction, the product must be neutralized and washed with water. It is easy to produce saponification phenomenon, and discharge a large amount of waste acid and waste lye to pollute the environment, which makes post-processing troublesome. However, in the process of preparing biodiesel, the excessive use of traditional catalysts with strong acid and strong alkali will still cause serious pollution to the environment. , the emergence of these phenomena seriously violated our original design of biodiesel

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