Method for preparing microalgae fuel by solar-driven biochemical thermochemical conversion and system thereof

• Main Authors: XIA AO, HUANG YUN, LI JUN, FU QIAN, FU JINGWEI, ZHU XUN, LIAO QIANG, ZHU XIANQING
• Format: Patent
• Language: Chinese; English
• Published: 15.11.2019
• Subjects: ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE ORUNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES; APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; BEER; BIOCHEMISTRY; CANDLES; CHEMISTRY; DETERGENTS; ENZYMOLOGY; ESSENTIAL OILS; FATTY ACIDS THEREFROM; FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIREDCHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERSFROM A RACEMIC MIXTURE; FIRELIGHTERS; FUELS; FUELS NOT OTHERWISE PROVIDED FOR; LIQUEFIED PETROLEUM GAS; LUBRICANTS; METALLURGY; MICROBIOLOGY; MUTATION OR GENETIC ENGINEERING; NATURAL GAS; PEAT; PERFUMES; PETROLEUM, GAS OR COKE INDUSTRIES; PRODUCING (PRESSING, EXTRACTION), REFINING AND PRESERVINGFATS, FATTY SUBSTANCES (e.g. LANOLIN), FATTY OILS AND WAXES,INCLUDING EXTRACTION FROM WASTE MATERIALS; SPIRITS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BYSUBCLASSES C10G, C10K; TECHNICAL GASES CONTAINING CARBON MONOXIDE; VINEGAR; WINE

The invention discloses a method for preparing microalgae fuel by solar-driven biochemical thermochemical conversion and a system thereof. The method for preparing the microalgae fuel by solar-drivenbiochemical thermochemical conversion comprises the following steps: 1. carrying out microalgae culture and regular harvesting in a microalgae high-density culture and harvesting system; 2, introducing the harvested algae slurry into a solar hydrothermal pretreatment system, carrying out hydrothermal hydrolysis, and separating the obtained product in a solid-liquid separator to obtain a hydrothermal hydrolysate and algae residues; 3, introducing the hydrothermal hydrolysate into a biomass fermentation gas production system to produce a material gas, carrying out oil extraction on the algae residue, introducing the obtained oil into a biomass bio-oil refining system to produce biodiesel, and introducing the degreased algae residue into the biomass fermentation gas production system to produce the material gas; and