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Method and device for co-production of animal feed and biodiesel feedstock by using kitchen waste through hydrothermal treatment

A technology for kitchen waste and biodiesel, which is applied in the directions of animal feed, animal feed, biofuel, etc., can solve the problems such as the inability to realize the maximum resource utilization of kitchen waste, single product, and primary process, and achieve stable operation, high salt content, etc. Low, simple system effect

Active Publication Date: 2014-01-01
GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method has high energy consumption, low-level process, and single product, which cannot realize the maximum resource utilization of kitchen waste

Method used

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  • Method and device for co-production of animal feed and biodiesel feedstock by using kitchen waste through hydrothermal treatment
  • Method and device for co-production of animal feed and biodiesel feedstock by using kitchen waste through hydrothermal treatment

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Embodiment Construction

[0030] The following is a further description of the present invention, rather than a limitation of the present invention.

[0031] Such as figure 1 As shown, after the uniformly collected food waste enters the factory area, it is first mechanically extruded, filtered and dehydrated on the dehydrator to reduce the water content of solid phase waste to about 50%, and to obtain solid phase waste, liquid phase and solid phase doped Mixed-phase garbage; the separated solid-phase garbage enters the mechanical sorting section for sorting, sorting out unusable components such as plastic, metal and glass, and the available solid-phase garbage components are crushed in the crusher to make the size of the garbage Homogenize and enhance the dehydration performance of garbage; the crushed solid-phase garbage enters the hydrothermal dehydration tank for hydrolysis, and the saturated steam is heated to make the temperature reach 140℃~160℃, the pressure is 0.4~0.7MPa, and the reaction is mai...

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Abstract

The invention discloses a method and a device for co-production of an animal feed and a biodiesel feedstock by using kitchen waste through the hydrothermal treatment. According to the method, processes of one-time mechanical dehydration, crushing, hydrothermal treatment, flash vaporization for dehydration and drying processing are carried out, and the method has the characteristics of short running time and low energy consumption; a step-by-step moisture removal drying method is adopted in the systematically technological process, so that more than 50% energy is saved compared with a one-stage direct thermal drying process; after the hydrothermal, high-temperature and high-pressure treatment, bacteria are treated, perishable parts are converted into a liquid phase for producing oil, and the produced feed has the characteristic low salt content (less than 1%), is free from influencing of animal growth, germ-free, safe and easy to store, and realizes the poly-generation purpose of the biodiesel feedstock recycling and the animal feed production.

Description

Technical field: [0001] The invention relates to the technical field of kitchen waste treatment, in particular to a method and device for co-producing animal feed and biodiesel raw materials through hydrothermal and wet decomposition of kitchen waste. Background technique: [0002] Food waste refers to the food waste and residues generated in the catering of households, enterprises and institutions, and the catering industry, and is an important part of urban domestic waste. The amount of food waste generated is increasing year by year, and the proportion of food waste in metropolitan cities has reached 50%. If calculated according to the national food waste accounting for 30% of domestic waste, the output of food waste in 2010 reached 45 million tons. Food waste has the characteristics of high moisture content, perishability, rich nutrition and various components. Effective disposal and utilization of kitchen waste can realize resource and energy conversion, prevent diffus...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09B3/00B09B5/00A23K1/10C11B13/00C10L1/02
CPCY02E50/13Y02E50/10Y02W30/74
Inventor 熊祖鸿鲁敏严密郭华芳陈勇范根育
Owner GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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