| abstract |
The invention discloses a supercritical heterogeneous catalysis preparation system for biodiesel, including a material transportation section, an intermediate medium heat exchange section, a biodiesel synthesis section, and a product decompression separation section; wherein, the material transportation section is connected to the inlet of a mixer , the outlet of the mixer is connected to the inlet of the ultrasonic emulsification machine, the outlet of the ultrasonic emulsification machine is connected to the inlet of the high-pressure material pump, and the outlet of the high-pressure material pump is connected to the intermediate heat exchange section; wherein, the biodiesel synthesis section includes supercritical heterogeneous catalytic reaction The supercritical heterogeneous catalytic reactor is filled with heterogeneous solid acidic catalyst, the intermediate medium heat exchange section is connected to the inlet of the supercritical heterogeneous catalytic reactor, and the outlet of the supercritical heterogeneous catalytic reactor is connected to the product In the step-down separation section, the product step-down separation section is provided with a stop valve. The invention overcomes the limitation of low-quality raw materials used by traditional preparation techniques, improves the economical efficiency of biodiesel preparation, and increases the conversion rate of diesel oil. |