Preparation method and device of biological aviation kerosene

• Main Authors: YE YUCHEN, LI LIQUAN, SONG JUNCHAO, LIU SHANLONG, YANG YIZHOU, LI JIANPING, ZHAO YING, YANG XUEJING, GU FENG
• Format: Patent
• Language: Chinese; English
• Published: 23.07.2024
• Subjects: CHEMISTRY; CRACKING HYDROCARBON OILS; FUELS; LUBRICANTS; METALLURGY; MINERAL WAXES; PEAT; PETROLEUM, GAS OR COKE INDUSTRIES; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; TECHNICAL GASES CONTAINING CARBON MONOXIDE

The invention discloses a preparation method and equipment of biological aviation kerosene, and relates to the technical field of waste recycling. The preparation method comprises the following steps: mixing the grease waste with hydrogen, and performing hydrodeoxygenation-dechlorination reaction under the action of a first catalyst to obtain a first oil product; performing steam stripping dehydration on the first oil product by taking hydrogen as a steam stripping medium to obtain a second oil product; mixing the second oil product with hydrogen, and performing hydrocracking-isomerization reaction under the action of a second catalyst to obtain a third oil product; separating the third oil product at a high pressure greater than a first preset pressure to obtain a fourth oil product; and separating the fourth oil product at a low pressure lower than a second preset pressure to obtain a fifth oil product, and fractionating the fifth oil product to obtain the biological aviation fuel. The process flow can be o