Application of carbon-based solid base catalyst in microalgae biodiesel
A technology of biodiesel and catalyst, applied in catalyst activation/preparation, physical/chemical process catalyst, biofuel, etc., can solve the problems of poor mechanical strength and high temperature resistance, low catalyst utilization rate, poor catalytic effect, etc., to achieve High conversion rate, reduced production steps, and convenient handling
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Embodiment 1
[0036] (1) A preparation method of modified Enteromorpha biochar catalyst:
[0037] Rinse the salvaged fresh Enteromorpha with pure water to remove impurities such as dust and sand on its surface, then place the washed Enteromorpha in an oven at 85°C until there is no moisture, and place the dried enteromorpha in a plant crusher The dry powder of Enteromorpha is obtained by crushing. Weigh 3g of potassium carbonate, add deionized water to dissolve, then add 5g of Enteromorpha dry powder, stir evenly, soak for a certain period of time, and then dry at 105°C. The dried mixture was blown under nitrogen (100cm 3 / min) in a tube furnace with a heating rate of 10 °C / min to 800 °C, activated for 1 h, and the sample was naturally cooled to room temperature and taken out to obtain Enteromorpha biochar solid catalyst modified with potassium carbonate.
[0038] (2) In situ transesterification of microalgae:
[0039] Put 1g of chlorella powder in a 150mL Erlenmeyer flask, add 5mL of n-he...
Embodiment 2
[0042] (1) A preparation method of modified Enteromorpha biochar catalyst:
[0043] Rinse the salvaged fresh Enteromorpha with pure water to remove impurities such as dust and sand on its surface, then place the washed Enteromorpha in an oven at 85°C until there is no moisture, and place the dried enteromorpha in a plant crusher The dry powder of Enteromorpha is obtained by crushing. Weigh 3g of potassium carbonate, add deionized water to dissolve, then add 5g of Enteromorpha dry powder, stir evenly, soak for a certain period of time, and then dry at 105°C. The dried mixture was blown under nitrogen (100cm 3 / min) in a tube furnace with a heating rate of 10°C / min to 800°C, activated for 2h, and the sample was naturally cooled to room temperature and taken out to obtain Enteromorpha biochar solid catalyst modified with potassium carbonate.
[0044] (2) In situ transesterification of microalgae:
[0045] Put 1g of chlorella powder in a 150mL Erlenmeyer flask, add 5mL of n-hex...
Embodiment 3
[0048] (1) A preparation method of modified Enteromorpha biochar catalyst:
[0049] Rinse the salvaged fresh Enteromorpha with pure water to remove impurities such as dust and sand on its surface, then place the washed Enteromorpha in an oven at 85°C until there is no moisture, and place the dried enteromorpha in a plant crusher The dry powder of Enteromorpha is obtained by crushing. Weigh 3g of potassium carbonate, add deionized water to dissolve, then add 5g of Enteromorpha dry powder, stir evenly, soak for a certain period of time, and then dry at 105°C. The dried mixture was blown under nitrogen (100cm 3 / min) in a tube furnace with a heating rate of 10 °C / min to 800 °C, activated for 3 h, and the sample was naturally cooled to room temperature and taken out to obtain Enteromorpha biochar solid catalyst modified with potassium carbonate.
[0050] (2) In situ transesterification of microalgae:
[0051] Put 1g of chlorella powder in a 150mL Erlenmeyer flask, add 5mL of n-...
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