HuaTai biology oil processing advance technology

Henan HuaTai food & oil machinery engineering Co., Ltd biology oil technology

1. Pre-processing

Raw oil in most situations is containing certain moisture content and microorganism, under the condition of the heated above 100 ℃. Triglycerides (three glyceride) part of hydrolytic decomposition, into free fatty acids. Therefore, general raw oil especially waste cooking oil contains 2

2 . the dissolution of methanol catalyst

Contained impurities such as water quantity in the mixture of methanol and catalyst under constant value used for modulation of methanol solution. The process, in particular, due to the sudden boiling solution heat, it is necessary to control the temperature of the dissolution rate and solution. Otherwise, KOH catalyst due to high water imbibition, so, in the storage and use of the phase to prevent absorption of moisture, once, to absorb a large number of moisture, KOH will become difficult to dissolve, will affect the next working procedure.~ 3% of free fatty acids, saturated solubility of water and residue of fixture.These impurities, especially in the process of by ester exchange method of alkaline catalyst, the catalytic activity decreased, produce adverse event generated make bad vice biological fuel properties, therefore, in front of the ester exchange reaction, necessary. To remove D/OIL manufacturing process, with fast separation, vacuum dehydration, acid and so on, almost all the impurities of the removal of waste cooking OIL. Saturated fatty acids by flipping legal broken into unsaturated fatty acids.

3. Ester exchange reaction

After pretreatment of raw oil and catalyst, methanol mixed, at 65 degrees for the ester exchange reaction (Ⅲ - 4).In this process, in order to achieve the purpose of fully reflect (tri - di - mono - glyceride conversion rate in more than 99%), it is necessary to control the methanol/oil ratio raw materials, catalyst/oil ratio raw materials, mixing speed, the parameters of the reaction time and so on.Usually, the methanol/oil ratio and catalyst/raw material ratio, the greater the reaction rate faster, in chemical reactions ,in theory more than an excess of methanol, is not only the manufacture of D/OIL price increases, D/OIL remaining in the methanol concentration increased, the fuel properties deteriorated.Also, the project, if there is residual raw water and free fatty acids in the oil, can cause side effects as shown in the figure below.Excessive methanol by flashing by distillation recycle after separation.

4. The separation of glycerol

After the reaction, from a mixture of glycerol and methyl ester exchange reaction resultant isolated glycerin. The separation of glycerol, although you can use glycerin (1.20 g/cm3), and methyl (0.88 g/cm3), the proportion of natural sedimentation, not only the separation speed is slow, cannot make glycerin completely separate. Therefore, the manufacturing process of D/OIL through efficient high-speed centrifuge separation

5. The refinement of methyl

Methyl ester is refined by protein shale adsorbent, remove the alkaline nitrogen, and aflatoxin in the biodiesel.

6. The adjustment of the D/OIL

From methyl ester refining project flow point of refining methyl ester, is usually 3 to 5 degrees or so, higher than 2 light oil benchmark, cannot be used in cold area. Add methyl ester is the flow of fuel special point depressant until the quantitative, the pour point down to about 15 ~ 20 degrees - range. Pour point depressant is added by floating point depressant and the mixture of methyl ester.

7. Company profile

Henan Huatai Cereals And Oils Machinery Co.,Ltd. is a large-scale oil processing machinery manufacturing enterprise integrating R & D, design, manufacture and installation.

Henan Huatai Cereals And Oils Machinery Co.,Ltd mainly produced palm oil pressing machine,rice bran oil making machine, vegetable oil pretreatment, prepress,extraction,refining,fraction machinery,corn(maize) deep-processing machinry,series of micrcbe oil refining machine,biodiesel equipment, owing wide international market in more than 130 countries and regions.