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Technique for preparing biological diesel oil by utilizing waste carclazyte

A technology of biodiesel and process method, which is applied in the field of biodiesel preparation, can solve problems such as complex process, large waste liquid discharge, poor reaction mass transfer, etc., and achieve the effects of improving economic benefits, solving environmental problems, and increasing development

Inactive Publication Date: 2008-08-13
上海市粮食科学研究所有限公司
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Problems solved by technology

At present, the production technology of biodiesel in the world is mainly chemical method. The industrialized technology in the United States and Germany is all chemical catalytic method. The traditional transesterification process uses liquid acid-base (KOH, NaOH, sodium methoxide, sulfuric acid, etc.) Compared with normal pressure and low temperature process, this type of process has the disadvantages of strict requirements on raw materials, complicated process, and large waste liquid discharge, and because methanol and oil are incompatible with each other, the mass transfer of this type of reaction is poor, which affects the reaction speed and transesterification effect

Method used

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  • Technique for preparing biological diesel oil by utilizing waste carclazyte

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Embodiment Construction

[0007] The invention adopts chemical engineering principles such as oil extraction and esterification / ester exchange to efficiently recover oil from waste clay and process it into biodiesel.

[0008] The flow process of production technique of the present invention sees figure 1 .

[0009] The use of white clay in the oil refining process is for the decolorization of oil. It mainly uses the two processes of physical adsorption and chemical adsorption of white clay to remove pigments and soaps in oil and impurities such as phospholipids and metal derivatives. When white clay absorbs these impurities, it also inevitably absorbs a large amount of oil, which reduces the yield of oil.

[0010] The main chemical composition of the waste clay after decolorization is: SiO 2 、Al 2 o 3 , Fe 2 o 3 , CaO, MgO, Na 2 O, K 2 O, neutral oils, non-hydratable phospholipids, natural pigments, fatty acids and vitamins, etc., generally dark brown semi-solid matter containing oil and other ...

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Abstract

The invention discloses a technical method for preparing biodiesel by using wasted bleaching clay, adopting wasted bleaching clay extracting recycled oil technique in process of forming recycled oil. Fresh wasted bleaching clay and hexane are extracted according to proportion scale of weight percent from 1:1 to 1:3. Extraction time is from 1 to 3 hours. Grease recycled from the wasted has relatively sample components and prepared biodiesel is not only used as common fuel gas, but also diesel for vehicle; wastes become precise, which solves problem of environment-protection and adds approach to develop biodiesel, improving economic efficiency and having great social efficiency.

Description

Technical field [0001] The invention relates to a process for preparing biodiesel from waste clay. Background technique [0002] With the increasingly serious global energy shortage and environmental deterioration, protecting the natural environment on which human beings depend has become an urgent problem for human beings to solve. Actively exploring and developing alternative fuels and renewable energy has become the focus of countries all over the world, and biodiesel is one of them. Biodiesel is a sustainable renewable energy source, and it is biodegradable. The development of biodiesel can not only alleviate the tight supply of diesel, but also help protect the ecological environment. Compared with petrochemical diesel, it has good lubricating performance, safe storage, transportation and use, strong anti-knock performance, and sufficient combustion. At present, the production technology of biodiesel in the world is mainly chemical method. The industrialized technolog...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G3/00C11B13/00
CPCY02E50/10Y02P30/20Y02W30/74
Inventor 陈慧郑伟陆娅陆洋
Owner 上海市粮食科学研究所有限公司
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