Preparation method of non-edible animal and plant crude oil refined oil

A technology for refining oil, animals and plants, applied in the direction of fat oil/fat refining, fat production, etc., can solve the problems that the refined oil cannot fully meet the requirements of raw material indicators, long process route, high COD value, and achieve high refining efficiency and stability. The effect of simplifying the refining process and saving production costs

Active Publication Date: 2013-12-18
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chemical refining has many processes, long process routes and high energy consumption
At the same time, neutralization (alkali refining) will not only cause the loss of free fatty acids, but also the saponins produced will entrain 20-50% of triglycerides, resulting in increased refining loss rate
In addition, due to the need to wash the saponified matter, waste water will also be generated. The COD value of these waste water is high and it is difficult to treat
Although

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Heat 100g jatropha crude oil (phosphorus content 231ug / g, metal 165ug / g, unsaponifiable matter 0.6%, acid value 4.8mgKOH / g) to 60°C, and add at a concentration of 0.5% under stirring at 500 rpm 2.6 g of citric acid solution, stirred at constant temperature for 60 min, and then centrifuged to obtain degummed oil. The degummed oil was vacuum dehydrated under the conditions of vacuum degree 0.08MPa, temperature 90°C, time 20min, then 3.0g silica gel was added under the conditions of 90°C and 200 rpm stirring, reacted for 30min and then filtered to obtain refined oil. The phosphorus content of the product is 1.8ug / g, the metal is 4.1ug / g, the unsaponifiable matter is 0.4%, and the acid value is 4.8mgKOH / g, which meet the raw material index requirements for the preparation of bio-jet fuel / biodiesel by hydrogenation.

Embodiment 2

[0020] Mix 100g jatropha crude oil and gutter oil at a ratio of 1:1 (phosphorus content 123ug / g, metal 144ug / g, unsaponifiable matter 0.58%, acid value 6.9mgKOH / g) and heat the oil to 60°C at 500 rpm Under the condition of stirring, 3.0 g of citric acid solution with a concentration of 0.5% was added, stirred at constant temperature for 60 minutes, and then centrifuged to obtain degummed oil. The degummed oil was vacuum dehydrated under the conditions of vacuum degree 0.08MPa, temperature 90°C, time 20min, and then 3.5g of silica gel was added under the conditions of 90°C and 200 rpm stirring, reacted for 30min and then filtered to obtain refined oil. The phosphorus content of the product is 1.3ug / g, the metal is 3.5ug / g, the unsaponifiable matter is 0.44%, and the acid value is 6.9mgKOH / g, which meet the raw material index requirements for the production of bio-jet fuel / biodiesel by hydrogenation.

Embodiment 3

[0022] Mix 100g jatropha crude oil and gutter oil at a ratio of 1:1 (phosphorus content 123ug / g, metal 144ug / g, unsaponifiable matter 0.58%, acid value 6.9mgKOH / g) and heat the oil to 60°C at 500 rpm Under stirring conditions, add 2.0 g of citric acid and acetic anhydride solution with a concentration of 0.5% and a ratio of 1:1, stir at a constant temperature for 60 minutes, and then centrifuge to obtain degummed oil. The degummed oil is vacuum dehydrated under the conditions of vacuum degree 0.08MPa, temperature 90°C, time 20min, then 4.0g of activated carbon and silica gel are added under the conditions of 90°C and 200 rpm stirring, reacted for 30min and filtered to obtain refined oil. The phosphorus content of the product is 0.9ug / g, the metal is 2.9ug / g, the unsaponifiable matter is 0.35%, and the acid value is 6.9mgKOH / g, which meet the raw material index requirements for the production of bio-jet fuel / biodiesel by hydrogenation.

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Abstract

The invention relates to a preparation method of a non-edible animal and plant crude oil refined oil. The method includes: filtering squeezed or extracted crude oil, removing solid particle impurities, conducting heating to 40-80DEG C; under stirring, adding a conversion-complexing agent accounting for 1-3% of the mass of the crude oil, conducting constant temperature stirring for 50-90min, employing centrifugal separation at the end of reaction to obtain degummed oil and oil saponins; dehydrating the degummed oil under a vacuum degree of 0.07-0.09MPa and a temperature of 95-105DEG C for 15-25min, heating the dehydrated oil to 90-110DEG C, adding 1-4% of an adsorbent, performing constant temperature stirring for 10-30min, and conducting filtering to obtain the refined oil. While removing phosphorus, metals and other impurities efficiently, the method maintains the acid value of the oil constant, thereby reducing loss and improving the refined oil yield. The method has the characteristics of simple process, low energy consumption, no wastewater discharge, and high stability, etc.

Description

field of invention [0001] The invention belongs to the processing category of animal and vegetable oils, in particular to a method for preparing refined oil from pressed or extracted vegetable crude oil, waste oils and algae oils. Background technique [0002] With the development of the world economy and the increasing consumption of petroleum resources, energy shortage has become a major problem affecting the sustainable development of human society. Out of the consideration of national energy security, countries around the world are competing to seek renewable energy to ease the oil shortage. Due to its abundant reserves, environmentally friendly and renewable characteristics, while meeting the energy needs of the future society, it also conforms to the concept of sustainable scientific development and the concept of circular economy. Therefore, the development and use of bioenergy has become a developed country in the world today. important component of energy strategy....

Claims

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Application Information

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IPC IPC(8): C11B3/00C11B3/04C11B3/10
Inventor 赵光辉佟华芳齐泮仑李建忠王桂芝崔锡红何玉莲秦丽华马建英董平何京贾云刚何皓刘剑马克存孙举
Owner PETROCHINA CO LTD
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