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Dry oil deodorizing process and equipment

A deodorization and oil technology, applied in the direction of oil/fat refining, fat production, etc., can solve the problems of affecting oil quality, unfavorable for oil storage and packaging, etc., to achieve the effect of small space occupation, simple and convenient equipment assembly, and increased output.

Inactive Publication Date: 2015-02-25
郑州远洋油脂工程技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Direct stripping in the traditional deodorization section, such as ZL2009100340765 discloses a vegetable oil deodorization process with high unsaturated acid content. After the deodorized oil is heated by a heat exchanger, it enters the deodorization tower for deodorization, and the deodorized oil cools down to complete the deodorization process. In the high temperature and water vapor environment in the deodorization tower, while the oil deodorizes and removes the low-molecular odor components, it inevitably causes some reactions such as hydrolysis, thermal polymerization, and isomerization of the oil, so that some inherent and newly generated low-carbon chains Small molecular volatile substances continue to exist, affecting the quality of oil, which is not conducive to oil storage and packaging

Method used

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  • Dry oil deodorizing process and equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Such as figure 1 As shown, the oil to be deodorized enters the low-temperature oil inlet of the spiral plate heat exchanger 1 and conducts oil-oil heat exchange with the deodorized oil to heat up to 170°C, and then enters the low-temperature oil outlet of the spiral plate heat exchanger 1 and enters the vacuum heater 2 shell side through high temperature The heat source is heated to the deodorization temperature of 235°C; under the action of gravity, the oil flows into the packing combination deodorization tower 3 by itself for 45 minutes to complete the stripping and deodorization; the deodorized oil is pumped into the dry steam tower 5 through the deodorized oil pump 4 for dry steaming to further remove low-carbon After chaining small molecules, the pump 6 is pumped into the high-temperature oil inlet of the spiral plate heat exchanger 1 through the dry steam tower to exchange heat with the oil to be deodorized for 10 minutes to cool it down to 140°C, and then flow...

Embodiment 2

[0022] Such as figure 1 As shown, the oil to be deodorized enters the low-temperature oil inlet of the spiral plate heat exchanger 1 and conducts oil-oil heat exchange with the deodorized oil to heat up to 185°C, and then enters the low-temperature oil outlet of the spiral plate heat exchanger 1 and enters the vacuum heater 2 shell side through high temperature The heat source is heated to the deodorization temperature of 250°C; under the action of gravity, the oil flows into the packing combination deodorization tower 3 by itself for 70 minutes to complete the stripping and deodorization; the deodorized oil is pumped into the dry steam tower 5 through the deodorized oil pump 4 for dry steaming to further remove low-carbon After chaining small molecules, the pump 6 is pumped into the high-temperature oil inlet of the spiral plate heat exchanger 1 through the dry steam tower to exchange heat with the oil to be deodorized for 13 minutes to cool it down to 160°C, and the high-t...

Embodiment 3

[0029] Such as figure 1 As shown, the oil to be deodorized enters the low-temperature oil inlet of the spiral plate heat exchanger 1 and conducts oil-oil heat exchange with the deodorized oil to heat up to 200°C, and then enters the low-temperature oil outlet of the spiral plate heat exchanger 1 and enters the vacuum heater 2 shell side through high temperature Heat the heat source to the deodorization temperature of 260°C; under the action of gravity, the oil flows into the packing combination deodorization tower 3 for 90 minutes to complete the stripping and deodorization; the deodorized oil is pumped into the dry steam tower 5 through the deodorized oil extraction pump 4 for dry steaming to further remove low-carbon After chaining small molecules, the pump 6 is pumped into the high-temperature oil inlet of the spiral plate heat exchanger 1 through the dry steam tower to exchange heat with the oil to be deodorized for 15 minutes to cool it down to 180°C, and the high-temp...

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Abstract

The invention discloses dry oil deodorizing process and equipment. Oil to be deodorized is heated by a heat exchanger and a vacuum heater to a deodorizing temperature; the oil then enters a deodorizing column for stripping deodorizing; the deodorized oil is pumped into a dry steaming column for dry steaming and is pumped into the heat exchanger to engage in heat exchange with oil to be deodorized, for cooling, thus deodorized oil is obtained; fatty acid distillate from the deodorizing column is stored in a fatty acid tank; low carbon chain molecules from the dry steaming column are removed under the vacuum action and captured and stored in the fatty acid tank. The dry oil deodorizing process has the advantages that steam quantity can be effectively reduced by 20-30%, finished oil yield is increased by 20-30%, formation rate of free fatty acid and trans-fatty acids is reduced, and the flavor of the deodorized finished oil is improved and guaranteed. The dry oil deodorizing equipment is simple and handy, small in size, lower in cost and lower in energy consumption.

Description

technical field [0001] The invention belongs to the technical field of deodorization of oil deodorization section, and in particular relates to a process and equipment applied to dry deodorization of oil. Background technique [0002] The deodorization section is an important section of oil refining, which requires heating-deodorization-cooling. Direct stripping in the traditional deodorization section, such as ZL2009100340765 discloses a vegetable oil deodorization process with high unsaturated acid content. After the deodorized oil is heated by a heat exchanger, it enters the deodorization tower for deodorization, and the deodorized oil cools down to complete the deodorization process. In the high temperature and water vapor environment in the deodorization tower, while the oil deodorizes and removes the low-molecular odor components, it will inevitably cause some reactions such as hydrolysis, thermal polymerization, and isomerization of the oil, so that some inherent and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B3/00C11B3/14
CPCC11B3/001
Inventor 李普选徐志刚张科红张宏峰李春宝
Owner 郑州远洋油脂工程技术有限公司
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