2.2. Procedure
The experimental scheme for co-liquefaction of coal and used tire constituent is summarized in Figure 1 and schematic of apparatus is shown in Figure 2. The co-liquefaction reactions were carried out in a 250-ml reactor (Parr reactor model 4843). The reactor filled withwater under nitrogen atmosphere. The water-filling content(percentage water volume to reactor volume) was 15-17% which this amount of water caused the pressure approaching 24-25 MPa at the desired temperature (380-440℃). The calculated amounts of coal and used tirewere loaded in the reactor at the specific ratio.
The reactor was heated to the desired temperature, abovethe water critical temperature at a heating rate of 5℃/min,
and held at this temperature for 1 min. The reactor was then cooled to room temperature and the products transferred
by washing into, and extracted with THF, in an ultrasonic bath. After the THF extraction, the product mixture was filtered to separate solid from liquid, and the solid residue was dried for 4 h in an oven at 110℃ to remove the residual solvent. The liquid products were separated into both oil and aqueous phases by CH2Cl2 using a separation funnel. Anhydrous sodium sulfate was added to the isolated oil phase to remove the trace
2.2. ProcedureThe experimental scheme for co-liquefaction of coal and used tire constituent is summarized in Figure 1 and schematic of apparatus is shown in Figure 2. The co-liquefaction reactions were carried out in a 250-ml reactor (Parr reactor model 4843). The reactor filled withwater under nitrogen atmosphere. The water-filling content(percentage water volume to reactor volume) was 15-17% which this amount of water caused the pressure approaching 24-25 MPa at the desired temperature (380-440℃). The calculated amounts of coal and used tirewere loaded in the reactor at the specific ratio.The reactor was heated to the desired temperature, abovethe water critical temperature at a heating rate of 5℃/min,and held at this temperature for 1 min. The reactor was then cooled to room temperature and the products transferredby washing into, and extracted with THF, in an ultrasonic bath. After the THF extraction, the product mixture was filtered to separate solid from liquid, and the solid residue was dried for 4 h in an oven at 110℃ to remove the residual solvent. The liquid products were separated into both oil and aqueous phases by CH2Cl2 using a separation funnel. Anhydrous sodium sulfate was added to the isolated oil phase to remove the trace
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