Method for hydrolyzing lignocellulose
A lignocellulose, mass ratio technology, applied in the new field of hydrolyzed lignocellulose, can solve the problems of inability to recycle, high energy consumption, long reaction time, etc., and achieves strong tolerance, high hydrolysis efficiency, and high mechanical strength. Effect
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[0028] Example 1
[0029] Using corncob as the lignocellulose raw material, crush it to 20μm powder. The corncob powder and water are evenly mixed at a mass ratio of 1:15. The homogenate is preheated to 100°C with ultrasonic, ultrasonic radiation power is 800W, and duty cycle is 1. , Ultrasonic frequency 40KHz, the preheated homogenate is heated to 150℃, the pressure is 10MPa, and the metal oxide CaO-Al 2 O 3 As a catalyst, the amount of the catalyst is 1.2% of the weight of the lignocellulose, the stirring speed is 500 rpm, the reaction time is 60 minutes, and the hydrolysate becomes light yellow.
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[0030] Example 2
[0031] Using straw as the lignocellulose raw material, it is crushed to 100μm powder, the straw powder and water are evenly mixed at a mass ratio of 1:25, the homogenate is preheated to 120°C with ultrasonic, ultrasonic radiation power is 2000W, duty ratio is 0.7, ultrasonic The frequency is 40KHz, the preheated homogenate is rapidly heated to 210℃, the pressure is 20MPa, and the supported metal oxide K 2 CO 3 / ZrO 2 As a catalyst, the amount of the catalyst is 1.4% of the weight of the lignocellulose, the stirring speed is 1000 rpm, and the reaction time is 120 min. The hydrolysate turns yellow.
Example Embodiment
[0032] Example 3
[0033] Using poplar as the lignocellulose raw material, pulverize it to a powder of 200μm. The poplar powder and water are evenly mixed at a mass ratio of 1:20. The homogenate is preheated to 80°C with ultrasonic, ultrasonic radiation power is 1500W, and duty cycle is 0.7 , Ultrasonic frequency 15KHz, the preheated homogenate is quickly heated to 180℃, the pressure is 6MPa, the anion exchange resin D315 is used as the catalyst, the amount of catalyst is 1.6% of the weight of lignocellulose, the stirring rate is 400rpm, the reaction time is 60min, and the hydrolyzed solution becomes light yellow.
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