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Method and system for preparing biological oil by antibiotic bacteria residue

A technology of antibiotic bacteria residue and bio-oil, which is applied in the petroleum industry, the preparation of liquid hydrocarbon mixtures, etc., can solve the problems of increasing operating costs and operating difficulties, and achieves easy separation and further processing, good environmental protection effects, and good energy-saving effects Effect

Active Publication Date: 2014-10-22
CHINESE ACAD OF AGRI MECHANIZATION SCI
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Problems solved by technology

In the Chinese invention patent application with the application number "201010128949.1" and titled "Method for producing fuel oil by hydrothermal liquefaction of biomass", a method for producing fuel oil by liquefaction of biomass is disclosed. It is carried out in a slurry bed reactor under the condition of hydrogen or carbon monoxide, which increases the operating cost and operation difficulty, and the raw material is limited to woody or straw biomass

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  • Method and system for preparing biological oil by antibiotic bacteria residue
  • Method and system for preparing biological oil by antibiotic bacteria residue

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Effect test

Embodiment 1

[0055] Embodiment 1 (batch type hydrothermal liquefaction)

[0056] 500g of penicillin slag with a water content of 80% and 10g of potassium carbonate were mixed and stirred evenly, then added to a high-pressure stirred reactor with a volume of 5L, and the air in the reactor was replaced with nitrogen after sealing. Heating to 300°C, the pressure is about 9MPa. Keep it in this state for 60 minutes, and cool the material down to room temperature through the cooling coil in the kettle. After the product was separated, 35.5g of bio-oil was obtained, with a yield of 35.5% (calculated on a dry basis of antibiotic residue), and a combustion value of 35MJ / kg. No penicillin residue was detected in the product.

Embodiment 2

[0057] Embodiment 2 (continuous hydrothermal liquefaction)

[0058] Mix the lincomycin residue with a water content of 78% and the sodium carbonate solution with a concentration of 20% in a mass ratio of 10:1, preheat to about 60°C, and then send it into the coiled tube via a plunger pump. The hydrothermal liquefaction reaction is carried out in the reactor. The reaction temperature is 300°C, the pressure is 10-12MPa, and the reaction residence time is 30min. After the reaction product passes through waste heat recovery device and cooling and depressurization equipment, bio-oil is obtained by separation. The yield of bio-oil was 38.0% (calculated on the dry basis of antibiotic residue), and the combustion value was 35MJ / kg. No lincomycin residue was detected in the product.

[0059] The invention can directly treat wet antibiotic residues, realize harmful substance removal and biomass energy conversion at the same time, the product is easy to separate, liquid biofuel can be...

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Abstract

A method and a system for preparing biological oil by an antibiotic bacteria residue are provided. Hydrothermal liquefaction of the antibiotic bacteria residue is adopted to produce the biological oil, and the method comprises the steps: material preparation comprising the steps of evenly mixing and stirring the antibiotic bacteria residue with the water content of 70%-95% and a catalyst in proportion into a slurry material; a hydrothermal liquefaction reaction comprising the steps of sending the slurry material into a hydrothermal liquefaction reactor, carrying out the hydrothermal liquefaction reaction, allowing organic matters in the slurry material to be converted into the biological oil, and removing residual antibiotics in the slurry material; and separation comprising the steps of separating the product after the hydrothermal liquefaction reaction to obtain the biological oil. The system comprises a material preparation device, the hydrothermal liquefaction reactor and a separation device. The method and the system are simple, feasible, economic and effective, can directly treat the wet antibiotic bacteria residue, and are high in treatment efficiency, good in environmental protection effect and energy saving effect, and suitable for concentrated mass treatment of the antibiotic bacteria residue.

Description

technical field [0001] The invention relates to organic waste treatment and biomass energy technology, in particular to a method and system for producing bio-oil from antibiotic residues produced by hydrothermal liquefaction of antibiotic residues and removing harmful substances such as residual antibiotics . Background technique [0002] Antibiotic residue is the main solid waste produced in the production process of fermented antibiotics. It contains residual antibiotics and metabolic intermediates, etc. If it is not disposed of properly, it will cause potential harm to the ecological environment and human health. It has been included in the 2008 National Hazardous Waste List ". my country's antibiotic production in 2009 was 147,000 tons, making it the world's largest producer of antibiotic raw materials. According to the estimation that 1 ton of antibiotics produces 8-10 tons of wet fungal residues, in 2009, the production of antibiotics in my country was 1.3 million to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G1/00
Inventor 李树君李道义景全荣杨军太吴丽丽燕晓辉尹玲玉
Owner CHINESE ACAD OF AGRI MECHANIZATION SCI
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