Pre-treating process for preparing biological diesel oil with waste animal and vegetable oil
A technology of waste animals and plants and biodiesel, which is applied in the field of pretreatment production technology of waste animals and plants to prepare biodiesel, can solve the problems of low glycerin water concentration, large equipment investment, large energy consumption, etc., and achieve simple process operation and low investment The effect of saving and reducing energy consumption
Inactive Publication Date: 2009-06-17
上海绿铭环保科技股份有限公司
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Problems solved by technology
The main disadvantages of this method are that there are many processes, large investment in equipment, especially large energy consumption; long hydrolysis time; low concentration of glycerin water, difficult to use
Method used
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example 3
[0019] Example 3: After the fatty acid with AV of 198 obtained by the pretreatment process of the present invention enters the esterification process, the reaction is catalyzed by biological enzymes, and the conversion rate of methyl ester is as high as 99%.
[0020]
example 4
[0021] Example 4: After the glyceride with AV of 2.20 obtained by the pretreatment process of the present invention enters the esterification process, a basic catalyst is used to carry out transesterification reaction, and the conversion rate of methyl ester is as high as 98%.
[0022]
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The present invention is pre-treating process of waste animal and vegetable oil for preparing biological diesel oil, and features that the technological process includes the following steps: clarifying the material oil in a clarifying tank; pumping the clarified oil into oil refining tank; adding water, salt or sulfuric acid for hydration, salting out or aciding out; stilling to layer; taking the upper layer of oil phase to vacuum drier for vacuum drying; filtering; and vacuum evaporating and / or distilling to obtain product with fatty acid and glyceride as two main components. Compared with available technology, the present invention has the advantages of simple technological process, low cost, low power consumption, high product purity, etc.
Description
[technical field] [0001] The invention relates to the technical field of pretreatment of waste animal and vegetable oils, in particular to a pretreatment production process for preparing biodiesel from waste animal and vegetable oils. [technical background] [0002] As we all know, the existing pretreatment equipment for waste animal and vegetable oils is mainly composed of sedimentation tanks, filtration equipment and separation equipment. The commonly used methods in the process are: 1. Sedimentation and oil skimming operations, generally put into a sedimentation tank with a certain capacity , place it for a few days, and then skim the oily material from the liquid surface; 2. Filtration and impurity removal operations, generally after dehydration, the filtration operation is carried out. Since the pretreatment process for preparing biodiesel has not yet attracted enough attention, research reports are not sufficient. There are many types of oil products involved, so the p...
Claims
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IPC IPC(8): C10G3/00
CPCY02E50/13Y02E50/10Y02P30/20
Inventor 叶正尧陶钧
Owner 上海绿铭环保科技股份有限公司