Preparation method of catalyst for preparing biodiesel

Abstract

The invention discloses a preparation method of a catalyst for preparing biodiesel. The preparation method comprises the following steps: cleaning an ostrich egg eggshell by utilizing distilled water to remove impurities on the surface of the eggshell, and drying the eggshell for 12 to 20 hours at the temperature of 90 to 110 DEG C; crushing the eggshell, and filtering the crushed eggshell by utilizing a 160-mesh to 180-mesh sieve; and placing the filtered eggshell in a muffle furnace, roasting the eggshell for 2h at the temperature of 800 to 1000 DEG C under the condition of introducing nitrogen, so as to obtain white solid powder of the catalyst for preparing the biodiesel, and vacuum drying and storing the prepared catalyst. The preparation method has the advantages: (1) the raw material for preparing the catalyst is low in price, wide in source and good in regeneration effect; (2) the catalyst prepared in the method is relatively high in catalytic activity, and experiments show that the yield of the biodiesel can reach more than 90 percent; (3) the catalyst is recyclable, and when the catalyst is reused for six times, the yield of the biodiesel still can reach more than 80 percent.

Description

technical field [0001] The invention relates to the field of biodiesel, in particular to a method for preparing a catalyst. Background technique [0002] The stable supply of energy and environmental pollution have become the main factors restricting the sustainable development of society. All countries in the world attach great importance to the development of environmentally friendly and renewable energy sources. Various biomass energy, solar energy and other renewable energy sources will replace oil and coal and gradually become the main energy source in the future. Biodiesel is a kind of biomass energy. Due to its many advantages, the research on biodiesel has become one of the hot spots in the world. [0003] At present, NaOH, KOH, H 2 SO 4 Homogeneous catalysts are used to catalyze short-chain alcohols such as methanol and animal and vegetable oils for transesterification, but this method will cause equipment corrosion problems, and unrecoverable catalysts are likel...

AI Technical Summary

Problems solved by technology

At present, the catalyst for preparing biodiesel using ostrich eggshell as the raw material of the catalyst has not been reported yet.

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