A method for preparing transition metal catalysts on mesoporous silicoaluminophosphate supports for use in the biohydrogenated diesel production process.

Abstract

This invention relates to a method for preparing transition metal catalysts on a substrate. Supports mesoporous silicoaluminophosphate for use. The process of producing biohydrogenated diesel involves the following methods: step a) Grind the silicoaluminophosphate and dicarboxylic acid support in A ratio of 1:0.01 to 1:0.1 by weight. b) Heat the mixture prepared in step a to a temperature of 100 to 150 degrees Celsius. For 3 to 6 hours, the mixture is then fired at a temperature of 450 to 650 degrees. Celsius for 4 to 6 hours. c) Take the mixture prepared in step b) and mix it in the solution of transition metals with the appropriate concentration. A concentration of 0.5 to 1.5 moles, in a ratio of 1:2.30 to 1:2.80 by weight. d) Take the mixture prepared in step c and bake at a temperature of 70 to 90 degrees Celsius for 6 to 6 minutes. 10 hours, and then fire at a temperature of 450 to 650 degrees Celsius for 4 to 6 hours. Its characteristic feature is the use of dicarboxylic acid, specifically maleic acid.

Claims

1. A method for preparing transition metal catalysts on mesoporous silicoaluminophosphate supports for use in the biohydrogenated diesel production process. This method involves the following steps: a) Grind the silicoaluminophosphate and dicarboxylic acid support in a ratio of 1:0.01 to 1:0.1 by weight. b) Heat the mixture prepared in step a) to a temperature of 100 to 150 degrees Celsius for 3 to 6 hours, and then calcin the mixture at a temperature of 450 to 650 degrees Celsius for 4 to 6 hours. c) Mix the mixture prepared in step b) into a solution of transition metals with a concentration of 0.5 to 1.5 moles, in a ratio of 1 : 2.30 to 1 : 2.80 by weight. d) Bake the mixture prepared in step c at 70 to 90 degrees Celsius for 6 to 10 hours, and then fire it at 450 to 650 degrees Celsius for 4 to 6 hours. Its characteristic feature is the use of dicarboxylic acid, specifically maleic acid.

2. Method for preparing transition metal catalysts on mesoporous silicoaluminophosphate supports according to claim 1, where the dicarboxylic acid used is in the solid state.

3. Method for preparing transition metal catalysts on mesoporous silicoaluminophosphate supports according to claim 1, where the silicoaluminophosphate support can be selected from SAPO-11, SAPO-18, or SAPO-34 silicoaluminophosphate.

4. Method for preparing transition metal catalysts on mesoporous silicoaluminophosphate supports according to claim 1, where the transition metal solution can be selected from one of the following: nickel nitrate (Ni(NO3)2), nickel chloride (NiCl2), nickel sulfate (NiSO4), or a mixture of these.

5. Method for preparing transition metal catalysts on mesoporous silicoaluminophosphate supports according to claim 4, where the transition metal solution used is nickel nitrate (Ni(NO3)2).

6. Method for preparing transition metal catalysts on mesoporous silicoaluminophosphate supports according to claim 1, where step c) also includes heating to 50 to 70 °C until the mixture is dry.

7. A mesoporous silicoaluminophosphate support transition metal catalyst for use in the biohydroenate diesel production process, prepared by any of the methods under claims 1 through 6.

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