Eco Environmental Energy Research Institute Limited

Eco Biomass Technology Company Limited

Junde Lu

Bin Xu

Kam Shing Siu

Connie Hiu Ying Chow

The present utility model provides a device for continuously producing sugar by hydrolyzation using a lignocellulosic raw material. The device comprises: an acid solution output unit, a raw material mixing unit, a feeding unit, a main reaction unit, and a discharging unit. The device is a genuine continuous hydrolyzation sugar-producing device, which can achieve continuous feeding, continuous reaction, and continuous discharging in terms of time, and can effectively reduce labor intensity, increase production efficiency, and increase sugar yields and sugar concentrations.

Device for continuously producing sugar by hydrolyzation using lignocellulosic raw material

The present invention discloses a system and a method for continuously preparing furfural using lignocellulosic raw material. The system comprises an acid solution output unit, a raw material mixing unit, a feeding unit, a main reaction unit, a discharging unit, a stripping reaction column, a separation unit, and a purification unit. The method comprises an acid solution output step, a raw material mixing step, a feeding step, a hydrolysis reaction step, a discharging step, a stripping reaction step, a separation step, and a purification step. The present invention is a genuine continuous production system, which achieves continuous acquisition of products in terms of time, reduces labor intensity, and improves production efficiency. The whole process has a reasonable design, high furfural yields and low unit energy consumption.

System and method for continuously preparing furfural using lignocellulosic raw material

The present invention discloses a system and a method for continuously preparing furfural using an acid-containing pentose solution. The system comprises a stripping reaction column, a separation unit, and a purification unit. The method comprises a stripping reaction step, a separation step, and a purification step. The system and the method of the present invention can use a liquid inorganic acid as a catalyst, has a strong catalytic capability and a low reaction temperature, and is capable of treating low concentration sugar liquids. The present invention adopts heating through directly vapor stripping to rapidly carry away a generated furfural along with the vapor while reacting a pentose, avoiding side reactions of the furfural in an acidic liquid environment. The reaction process of the present invention does not require any extracting agent, and the furfural carried away along with the vapor is easy to separate after cooling. The whole process has a reasonable design, high furfural yields and low unit energy consumption.

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Hong Kong, China

Junde Lu