Oil-containing microalgae pressure catalytic oil refining technology

Abstract

The invention discloses an oil-containing microalgae pressure catalytic oil refining technology, comprising the following steps: directly putting the wet microalgae into a high pressure reactor, and adding a certain amount of organic solvent and Lewis acid catalyst into the reactor; inflating the CO2 of 2 to 4 MPa into the reactor, stirring and heating to the temperature of 300 to 450 DEG C to react for 30 to 60 minutes; and cooling to the room temperature to obtain a raw product, and separating to obtain a liquid product; removing part of the organic solvent and most of the water, and addinga microemulsification assistant to obtain the micro emulsification biofuel oil. In the invention, the wet microalgae is used as the raw material, thereby avoiding the defect of large consumption of the energy in the drying of the oil-containing microalgae. The micro emulsification biofuel oil produced has good stability, no layering, no sediment, high temperature resistance, easy storage, high calorific value, sufficient burning and less ash content, can be used to replace the domestic fuel and part of the industrial fuel, and has wide application field.

Description

technical field

[0001] The invention belongs to the field of microalgae new energy, and more specifically relates to a technology for microalgae pressurized catalytic production of biofuel. Background technique

[0002] With the development of society and economy, energy problems are becoming more and more prominent, and the dependence of human society on energy is becoming more and more obvious. However, fossil fuels (such as oil and coal) are becoming exhausted, and the use of fossil fuels has also brought many Problems such as acid rain and the greenhouse effect. These major problems are forcing the governments of various countries to consider the development of new energy sources. The development of biomass energy has attracted the attention of various countries. Natural plants can not only absorb CO in the atmosphere 2 , reduce the greenhouse effect, and can also produce bio-fuels to alleviate the energy crisis.

[0003] At this stage, some countries have taken advant...