Disclosed is the integration of the production of acetic anhydride from ketene, and the acetylation of wood using acetylation fluid comprising acetic acid and acetic anhydride. The invention involves directly using raw acetic anhydride as obtained in the production thereof from ketene, as a wood acetylation fluid.

In one embodiment, the present application discloses methods to selectively synthesize higher alcohols and hydrocarbons useful as fuels and industrial chemicals from syngas and biomass. Ketene and ketonization chemistry along with hydrogenation reactions are used to synthesize fuels and chemicals. In another embodiment, ketene used to form fuels and chemicals may be manufactured from acetic acid which in turn can be synthesized from synthesis gas which is produced from coal, biomass, natural gas, etc.

In one embodiment, the present application discloses methods to selectively synthesize higher alcohols and hydrocarbons useful as fuels and industrial chemicals from syngas and biomass. Ketene and ketonization chemistry along with hydrogenation reactions are used to synthesize fuels and chemicals. In another embodiment, ketene used to form fuels and chemicals may be manufactured from acetic acid which in turn can be synthesized from synthesis gas which is produced from coal, biomass, natural gas, etc.

Device and method for continuously preparing high-purity AKD without solvent includes a reactor making continuous mixing of raw materials. The process includes: the tertiary amine feeding into the reactor and the continuously feeding acyl chloride from three to ten line; under operating state, the motor rotates the internal cylinder in relation to external cylinder, forcing the fed materials to convey and stir in the conveying section of annular column passage, forcing the materials to shear and mix by movement of shearing and kneading blades. Arrangement of conveying and mixing sections along the axial direction of annular column passage, causes sufficient reaction of materials and controls the material temperature through internal and external heat exchange systems until the reaction products are discharged from outlet. The device and process disperse reaction heat and sufficient material mixture and complete reaction to control the reaction temperature, viscosity and decrease the generation of side reaction.

Device and method for continuously preparing high-purity AKD without solvent includes a reactor making continuous mixing of raw materials. The process includes: the tertiary amine feeding into the reactor and the continuously feeding acyl chloride from three to ten line; under operating state, the motor rotates the internal cylinder in relation to external cylinder, forcing the fed materials to convey and stir in the conveying section of annular column passage, forcing the materials to shear and mix by movement of shearing and kneading blades. Arrangement of conveying and mixing sections along the axial direction of annular column passage, causes sufficient reaction of materials and controls the material temperature through internal and external heat exchange systems until the reaction products are discharged from outlet. The device and process disperse reaction heat and sufficient material mixture and complete reaction to control the reaction temperature, viscosity and decrease the generation of side reaction.

Device and method for continuously preparing high-purity AKD without solvent includes a reactor making continuous mixing of raw materials. The process includes: the tertiary amine feeding into the reactor and the continuously feeding acyl chloride from three to ten line; under operating state, the motor rotates the internal cylinder in relation to external cylinder, forcing the fed materials to convey and stir in the conveying section of annular column passage, forcing the materials to shear and mix by movement of shearing and kneading blades. Arrangement of conveying and mixing sections along the axial direction of annular column passage, causes sufficient reaction of materials and controls the material temperature through internal and external heat exchange systems until the reaction products are discharged from outlet. The device and process disperse reaction heat and sufficient material mixture and complete reaction to control the reaction temperature, viscosity and decrease the generation of side reaction.