Method for preparing arene-rich fuel oil by co-pyrolysis of lignin and low-density polyethylene

A low-density polyethylene and lignin technology, which is applied in the treatment of hydrocarbon oil, hydrocarbon oil treatment products, chemical instruments and methods, etc., can solve the problems of rarely being effectively used

Inactive Publication Date: 2019-02-22
JIANGSU UNIV
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  • Application Information

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Problems solved by technology

[0002] Lignin is the only biological resource that can provide renewable aryl compounds in nature, and its reserves are second only to cellulose. Howe

Method used

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  • Method for preparing arene-rich fuel oil by co-pyrolysis of lignin and low-density polyethylene
  • Method for preparing arene-rich fuel oil by co-pyrolysis of lignin and low-density polyethylene
  • Method for preparing arene-rich fuel oil by co-pyrolysis of lignin and low-density polyethylene

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Experimental program
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Effect test

Embodiment 1

[0032] Embodiment one: determine optimum LDPE addition ratio.

[0033] The raw materials used in the test are lignin and LDPE, first take by weighing 30g lignin and LDPE as reaction raw material 5 (a total of five groups of experiments, LDPE additions are respectively 5%, 15%, 25%, 35% of the lignin quality, 45%) in the 500mL three-necked flask 4, and then the three-necked flask 4 is placed in the microwave reactor 2, the left port of the three-necked flask 4 is connected to the nitrogen cylinder 1, the middle port is inserted into the temperature measuring tube 6, and the right port is inserted into the catalytic fixed bed reaction The quartz tube that device 8 is connected, in catalytic fixed-bed reactor 8 (fixed-bed reactor 8 reaction temperature of five groups of experiments is all 450 ℃), the Zn modification of 1.5g (addition amount is 5% of lignin quality) ZSM-5 / MCM41 catalyst, the device is sealed and connected, and nitrogen is introduced to exhaust the air. Set the re...

Embodiment 2

[0035] Embodiment 2: Determining the optimum temperature for catalytic fixed-bed reaction.

[0036]The used raw material of test is lignin and LDPE, at first take by weighing the lignin raw material of 30g and the LDPE of 7.5g (determining that the optimum LDPE addition is 25% of lignin quality by the result of embodiment one) is put in the 500mL quartz flask, Place the quartz flask in the microwave oven again, and place 1.5g (addition amount is lignin quality) 5%) Zn modified ZSM-5 / MCM41 catalyst. Set the reaction temperature of microwave pyrolysis to 450°C, the reaction time to 15min, and the microwave power to 750W; the co-pyrolysis steam generated by the microwave pyrolysis reaction passes through the catalytic fixed bed for catalytic reforming reaction, and then the fuel is collected after rapid condensation Oil, the fuel oil after the reaction was collected and analyzed by GC / MS. In the experiment, four groups of microwave pyrolysis experiments with different catalytic ...

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Abstract

The invention belongs to the technical field of biomass pyrolysis, and particularly relates to a method for preparing arene-rich fuel oil by co-pyrolysis of lignin and low-density polyethylene. A pyrolysis-catalytic reforming method combining a microwave pyrolysis device and a fixed bed catalytic reactor is adopted with a mixture of the lignin and the low-density polyethylene (LDPE) as a researchobject to determine the optimum addition ratio of the LDPE and the optimum reaction temperature of the catalytic reforming reaction. The arene-rich fuel oil is prepared directionally by co-pyrolysis of the lignin and the LDPE.

Description

technical field [0001] The invention belongs to the technical field of biomass pyrolysis, and in particular relates to a method for co-pyrolyzing lignin and low-density polyethylene to prepare aromatic-rich fuel oil. Background technique [0002] Lignin is the only biological resource that can provide renewable aryl compounds in nature, and its reserves are second only to cellulose. However, most of lignin is directly discharged into rivers or burned for power generation in the form of "black liquor", and few be effectively utilized. With the development of modern society and economy, human beings inevitably face environmental pollution and resource crisis caused by organic wastes such as waste plastics. Therefore, with the intensification of energy crisis and environmental pollution caused by waste resources, the research on the efficient development and utilization of lignin and organic waste resources has become a hot spot in the fields of forestry and chemical industry....

Claims

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Application Information

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IPC IPC(8): C10G1/00B01J8/02B01J19/12
CPCB01J8/02B01J8/0285B01J19/126B01J2208/00442C10G1/00C10G2300/1003C10G2300/1011C10G2300/4006C10G2300/70C10G2400/30
Inventor 卜权陈坤刘园源毛罕平汪梅储秋露
Owner JIANGSU UNIV
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