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Kitchen refuse coking treatment process and apparatus

A kitchen waste and treatment device technology, which is applied in the field of kitchen waste resource treatment, can solve kitchen waste pollution and other problems, and achieve the effects of high treatment efficiency, good promotion adaptability, and simple and hygienic treatment methods

Inactive Publication Date: 2010-11-17
EAST CHINA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In view of the defects in the above-mentioned prior art, the technical problem to be solved by the present invention is to provide a treatment that can efficiently solve the pollution problem caused by kitchen waste, and at the same time produce biological crude oil (kitchen waste tar) and other chemical raw materials. A coking process and device for kitchen waste, characterized in that the steps of the method are as follows:

Method used

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  • Kitchen refuse coking treatment process and apparatus
  • Kitchen refuse coking treatment process and apparatus
  • Kitchen refuse coking treatment process and apparatus

Examples

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Effect test

Embodiment 1

[0042] Simulate the coking process of kitchen waste, and use the experimental method of small batch reactor to accurately test the coking data of kitchen waste. The raw material is kitchen waste, crushed to less than 0.5mm, and preheated to 200°C after removing impurities. Then the temperature is rapidly raised to 500°C in the heating furnace. After sufficient reaction and fractional distillation, the product yields obtained are shown in Table 1.

[0043] Table 1 Kitchen waste coking product yield (wt%)

[0044] raw material

[0045] Refer to Ministry of Petroleum Standard SY / T5119-1995 "Analysis Method for Soluble Organic Matter in Rocks and Crude Oil Group Components" to carry out group chromatography analysis of liquid product (kitchen waste tar). The asphaltene in the sample was dissolved with chloroform, and after the chloroform volatilized, it was precipitated and filtered with n-pentane to obtain asphaltene. The soluble matter was passed through silica gel a...

Embodiment 2

[0050] The coking reaction was carried out in a drum-type heating reaction furnace, and the yield of three-phase products was measured. The raw material is kitchen waste, crushed to less than 2mm, and preheated to 200°C after removing impurities. Then it enters the drum-type heating reaction furnace through the feeding system and rapidly raises the temperature to 500°C, and is transported to the high-temperature storage tank after reaction. After sufficient reaction and fractional distillation, the product yields obtained are shown in Table 3.

[0051] Table 3 Kitchen waste coking product yield (wt%)

[0052] raw material

[0053] The yield of the most economically valuable solid product (kitchen coke) was 33.2%, and the yield of liquid product (kitchen tar) was 48.2%, both of which accounted for 81.4% of the total mass of the whole kitchen waste. It shows that the effect of the coking process is very good, and it has high economic and production value.

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Abstract

The present invention discloses kitchen refuse coking treatment process and apparatus. Dried kitchen refuse is first pre-heated to about 200 deg.c for further drying, and then heated to 450- 600 deg.c inside a drum heating and reacting furnace in varying heating speed 50-200 deg.c / min for complete coking and pyrolysis. During coking and pyrolysis of kitchen refuse, solid product, liquid product and gaseous product are produced, the solid product has biomass coke as main component, the liquid product has biological oil as main component and may be further treated into liquid fuel, and the gaseous product is fuel gas.

Description

[technical field] [0001] The invention relates to a resource treatment technology of kitchen waste, in particular to a coking treatment technology of kitchen waste which can safely and effectively process kitchen waste and produce products with extremely high economic value. [technical background] [0002] With the development of the economy and the improvement of living standards, kitchen waste is becoming a new issue faced by urban managers in our country. Although some cities have taken measures to deal with it, no matter from the analysis of technology, management and other levels, kitchen waste treatment is only in its infancy in my country, and it is urgent to attract the attention of all parties and solve it. [0003] At present, the main methods of kitchen waste treatment in my country are landfill, composting and biological treatment. Among them, landfill has become the main way to deal with kitchen waste in my country because of its relatively low processing cost,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10B53/00C10G1/00B09B5/00B09B3/00
CPCY02E50/32Y02E50/30
Inventor 汪华林张振华胥培军李权柄钱卓群黎德尧
Owner EAST CHINA UNIV OF SCI & TECH
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