A method for producing light oil by liquefaction of biomass
A technology for biomass and light oil, which is applied in the preparation of liquid hydrocarbon mixtures, treatment of hydrocarbon oil, and the petroleum industry. It can solve the problems of small amount of biomass transported by the pump, low yield of light oil, and unstable transportation. , to achieve the effect of smooth operation and transportation, volume reduction and smooth flow
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Embodiment 1
[0063] This embodiment provides a method for biomass liquefaction to produce light oil, such as figure 1 shown, including the following steps:
[0064] (1) Put the wheat straw into the drier and dry it at 50°C for 5h until the water content is lower than 2wt%, then send it into the superfine pulverizer for primary crushing, the median particle size after primary crushing is 100 μm, and then the primary crushing The crushed wheat straw is sent to the plodder to be compressed and extruded at a temperature of 30°C and a pressure of 3 MPa, and then subjected to secondary crushing treatment to obtain wheat straw particles with a median particle size of 30 μm after secondary crushing. , the bulk density of wheat straw particles 2 is 500kg / m 3 ;
[0065] The above-mentioned wheat straw particles 2, amorphous alumina 3 loaded with Mo oxides and Ni oxides (the particle size is 5 μm-50 μm, and the loading capacity is 10 wt%) and sulfur 1 are mixed in a mass ratio of 100:0.5:0.4. Mix ...
Embodiment 2
[0076] This embodiment provides a method for producing light oil from biomass liquefaction, comprising the following steps:
[0077] (1) Put rice straw, ramie straw and pea straw into a drier and dry at 70°C for 3 hours until the water content is lower than 2wt%, and then send them into an ultrafine pulverizer for primary crushing. The median particle size after primary crushing is 300μm, and then the primary crushed rice straw, ramie straw and pea straw are sent to the plodder for compression extrusion molding at a temperature of 60°C and a pressure of 0.5MPa, and then secondary crushing treatment, after secondary crushing Finally, the mixed particle 2 of rice straw, ramie straw and pea straw with a median particle size of 50 μm was obtained, and the bulk density of the mixed particle 2 was 400 kg / m 3 ;
[0078]The above mixed particles 2, amorphous alumina 3 loaded with W oxide and Pd oxide (with a particle size of 100 μm-150 μm, and a loading capacity of 25%) and carbon di...
Embodiment 3
[0089] This embodiment provides a method for producing light oil from biomass liquefaction, comprising the following steps:
[0090] (1) Send soybean stalks and cotton stalks into a drier and dry them for 4 hours at 60°C until the moisture content is lower than 2wt%, then send them into an ultrafine pulverizer for primary crushing, the median particle size after primary crushing is 200 μm, Then, the soybean stalks and cotton stalks after the initial crushing were sent into the plodder to be compressed and extruded at a temperature of 40°C and a pressure of 2 MPa, and then secondary crushing was carried out. After the secondary crushing, the median particle size was obtained as follows: Mixed particles 2 of 40 μm soybean straw and cotton straw, the bulk density of mixed particles 2 is 450kg / m 3 ;
[0091] Mix the above mixed particles 2, amorphous alumina loaded with Mn oxide (the particle size is 100 μm-150 μm, and the loading capacity is 15%), amorphous iron oxide and sulfur...
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