Abrégé

Disclosed by the present invention is a method for preparing a high-quality fuel oil and/or chemical raw material from a biomass pyrolysis liquid. In the method, a biomass pyrolysis liquid undergoes a hydrodeoxygenation reaction in a catalyst full mixing flow circulation system in a fluidized bed reactor to obtain deoxygenated oil, and the obtained deoxygenated oil undergoes a hydrocracking reaction in a fixed bed reactor to obtain high-quality fuel oil and/or a chemical raw material. The method of the present invention may prevent the condensation and coking of a biomass pyrolysis liquid, solve the problem of rapid catalyst deactivation, and may convert a biomass pyrolysis liquid into a high-quality fuel oil that may be directly used by vehicles and into a chemical product.

Classes IPC  ?

• C10G 65/12 - Traitement des huiles d'hydrocarbures, uniquement par plusieurs procédés d'hydrotraitement uniquement par plusieurs étapes en série comprenant des étapes de craquage et d'autres étapes d'hydrotraitement

Abrégé

Disclosed is a method for preparing fuel from a biomass pyrolysis liquid. A biomass pyrolysis liquid that is not pretreated is added to a reaction zone of a fluidized bed reactor under the protection of a hydrogen donor to perform hydrotreatment. The biomass pyrolysis liquid is hydrogenated and converted into fuel in the fluidized bed reactor in which a full mixing and fluidifying catalyst circulating system formed by the combined action of circulating oil, catalyst, hydrogen, and internal components. Part of the fuel is returned to the fluidized bed reactor as circulating oil, and the other part is discharged as a product. The fuel obtained by the present invention is miscible with fossil fuel by any ratio, has a very low sulfur and nitrogen content, and contains a certain proportion of oxygen to facilitate complete combustion, especially in high altitude areas. In addition, the present invention prevents the condensation and coking of biomass pyrolysis liquid against heating, so that the problem of fast deactivation of catalyst is solved, the formation of coke is prevented, and the requirements of industrialized long-period operation can be satisfied.

Classes IPC  ?

• C10G 1/04 - Production de mélanges liquides d'hydrocarbures à partir de schiste bitumineux, de sable pétrolifère ou de matières carbonées solides non fusibles ou similaires, p. ex. bois, charbon par extraction
• C10G 49/10 - Traitement des huiles d'hydrocarbures, en présence d'hydrogène ou de composés donneurs d'hydrogène, non prévu dans un seul des groupes , , , ou avec des particules solides en mouvement