Method for liquefying plant biomass and waste polyester mixed supercritical fluid
A plant biomass and supercritical fluid technology is applied in the field of liquefying plant biomass and waste polyester mixed supercritical fluid to prepare bio-oil. problems, to achieve the effect of high liquefaction rate, improved liquefaction rate, and low liquid-solid ratio
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Embodiment 1
[0026] 1. Process parameters:
[0027] Corn straw powder 20g
[0028] Phenolic resin 10g
[0029] Ethanol dosage 152ml
[0030] Liquefaction temperature 230℃
[0031] Liquefaction holding time 5min
[0032] Sodium carbonate (to corn stalk powder, wt%) 10
[0033] Second, the specific process is as follows:
[0034] A 1 , 20g of corn stalk powder, 10g of phenolic resin, 2g of sodium carbonate and 152ml of dehydrated ethanol (density of 0.790g / ml) are placed in a reactor with a stirrer, that is, the amount of catalyst used is plant biomass 10% of the mass, the addition of the liquefaction agent is 4 times the sum of the plant biomass and the polyester mass, and the ratio of the plant biomass to the polyester mass is 2:1. Mix corn stalk powder, phenolic resin, catalyst and ethanol evenly, cover and seal and then heat up; raise the temperature of the reactor to 230°C, pressurize to 5MPa, and keep it in this state for 5min before stopping heating.
[0035] B 1 1. After the...
Embodiment 2
[0037] 1. Process parameters:
[0038] Wheat grass powder 20g
[0039] Polycarbonate 30g
[0040] Ethanol consumption 380ml
[0041] Liquefaction temperature 265°C
[0042] Liquefaction holding time 15min
[0043] Sodium hydroxide (wheatgrass powder, wt%) 6
[0044] Second, the specific process is as follows:
[0045]A2, 20g dry wheatgrass powder, polycarbonate of 30g, 1.2g sodium hydroxide and 380ml dehydrated alcohol (density is 0.790g / ml) are placed in the reactor that has agitator, promptly the consumption of catalyst is plant 6% of biomass quality, the addition of liquefaction agent is 6 times of the sum of plant biomass and polyester quality, and the ratio of plant biomass and polyester quality is 2: 3; Wheat grass powder, polycarbonate, catalyst and Mix ethanol evenly, cover and seal, then heat up; heat to 265°C, pressurize to 6.5MPa; keep warm for 15min in this state, then stop heating.
[0046] B2. After the liquefaction of step A2 is completed, when it is natu...
Embodiment 3
[0048] 1. Process parameters:
[0049] Wood powder 20g
[0050] ABS plastic 40g
[0051] Methanol consumption 455ml
[0052] Liquefaction temperature 280°C
[0053] Liquefaction holding time 30min
[0054] Sodium sulfide (to wood powder, wt%) 10
[0055] Second, the specific process is as follows:
[0056] A3, 20g absolute dry wood powder, 40gABS plastics, 2g sodium sulfide and 455ml anhydrous methanol (density is 0.792g / ml) are placed in the reactor with agitator, the consumption of catalyzer is 10% of plant biomass quality %, the addition of liquefaction agent is 6 times of the sum of plant biomass and polyester mass, and the ratio of plant biomass to polyester mass is 1:2. Mix wood powder, ABS plastic, catalyst and methanol evenly, cover and seal, then heat up; heat to 280°C, pressurize to 8MPa; keep warm for 30min in this state, then stop heating.
[0057] B3. After the liquefaction of step A3 is completed, when it is naturally cooled to 100° C., pass cooling water ...
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