Method for preparing biomass retarder from agricultural wastes, and application of biomass retarder
A technology for agricultural waste and biomass, which is applied in the field of high-value conversion of agricultural waste and its utilization, can solve the problems of high price of aminotrimethylidene phosphate, insoluble cellulose derivatives, and restrictions on large-scale use, and achieves water solubility. Good performance, simple and easy solid-liquid separation process, and low cost
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Embodiment 1
[0035] (1) Take 50g of agricultural straw and transfer it to a 500mL stainless steel ball mill container, control the mass ratio of stainless steel beads to agricultural straw to 50:1, and then keep forward rotation and reverse rotation at a speed of 600r / min for 1h, The forward and reverse cycles were switched 6 times, and the ball milling time was set at 12 hours. After stopping, cool to room temperature, separate the straw and steel balls, and obtain straw powder.
[0036] (2) Transfer the 50g straw powder after the ball milling to a 500mL stainless steel reactor, add 100mL water and 2.5g FAU molecular sieve-supported nickel catalyst (transmission electron microscope photo as shown in image 3 shown), keep the mass ratio of catalyst, straw and water at 0.05:1:2, and stop the reaction at 170°C for 2 hours.
[0037] (3) After the above-mentioned wet hydrolysis product is cooled to room temperature, it is suction-filtered under normal temperature and pressure conditions, and t...
Embodiment 2
[0041] (1) Take 50g of agricultural straw and transfer it to a 500mL stainless steel ball mill container, control the mass ratio of stainless steel beads to agricultural straw to 50:1, and then keep forward rotation and reverse rotation at a speed of 600r / min for 1h, The forward and reverse cycles were switched 6 times, and the ball milling time was set at 12 hours. After stopping, cool to room temperature, separate the straw and steel balls, and obtain straw powder.
[0042](2) Transfer 50g of straw powder after ball milling to a 500mL stainless steel reactor, add 100mL of water and 2.5g of nickel catalyst supported by FAU molecular sieves, keep the mass ratio of catalyst, straw, and water at 0.05:1:2. The reaction was stopped after 2 h at the temperature of ℃.
[0043] (3) After the above-mentioned wet hydrolysis product is cooled to room temperature, it is suction-filtered under normal temperature and pressure conditions, and the liquid and solid catalyst are separated to o...
Embodiment 3
[0047] (1) Take 50g of agricultural straw and transfer it to a 500mL stainless steel ball mill container, control the mass ratio of stainless steel beads to agricultural straw to 50:1, and then keep forward rotation and reverse rotation at a speed of 600r / min for 1h, The forward and reverse cycles were switched 6 times, and the ball milling time was set at 12 hours. After stopping, cool to room temperature, separate the straw and steel balls, and obtain straw powder.
[0048] (2) Transfer 50g of straw powder after ball milling to a 500mL stainless steel reactor, add 100mL of water and 2.5g of nickel catalyst supported by FAU molecular sieves, keep the mass ratio of catalyst, straw, and water at 0.05:1:2, at 200 The reaction was stopped after 2 h at the temperature of ℃.
[0049] (3) After the above-mentioned wet hydrolysis product is cooled to room temperature, it is suction-filtered under normal temperature and pressure conditions, and the liquid and solid catalyst are separa...
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