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Method for preparing biological diesel oil from saurauia tristyla var oldhamii oil

A technology of biodiesel and wax gourd, which is applied in the preparation of biological raw materials, biofuels, liquid hydrocarbon mixtures, etc., can solve the problems of production, scale or complex industrial production of components, poor safety, large investment, etc., and achieve simple cost , good quality, good effect of medicine

Active Publication Date: 2006-11-08
储浩
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

(2) It is impossible for other raw materials to form industrialized production on a large scale due to the output and scale or the complexity of components
(3) Biodiesel produced from all the raw materials mentioned above has no economic advantages compared with petrochemical diesel
[0004] The existing biodiesel production method is to carry out esterification reaction under the conditions of high temperature (above 200°C), high pressure (above 0.8MPa) and catalyst after refining animal and vegetable oils. This process requires large investment and high energy consumption. poor security

Method used

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  • Method for preparing biological diesel oil from saurauia tristyla var oldhamii oil
  • Method for preparing biological diesel oil from saurauia tristyla var oldhamii oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] 1. Production process of wax gourd crude oil

[0018] 1. Raw material watermelon fruit

[0019] Every year in late October, the fruit that becomes red (with a little yellow fruit) on the water wax gourd tree is picked, dried, and stored in storage.

[0020] 2. Pretreatment

[0021] The water wax gourd fruit stored in the air to be dried is removed various impurities in the fruit by air separation, magnetic separation and other means.

[0022] 3. Press to extract oil

[0023] 100 jin of wax gourd fruit from which impurities have been removed are put into a hydraulic oil press for continuous pressing to obtain 24.4 jin of wax gourd crude oil. In order to improve the oil yield, according to the equipment and process conditions, the pressed oil cake is leached to extract oil. The fatty acid component of the water wax gourd crude oil that obtains with above method is: WT%

[0024] palmitic acid C 16 :0 13.9

[0025] palmitenoic acid C 16 : 1 6.4

[0026] stearic aci...

Embodiment 2

[0045] One, the wax gourd crude oil production process is identical with embodiment 1.

[0046] 2. Refining process of wax gourd oil

[0047] (1) Degumming

[0048] Take 1,500 grams (about 1,800 ml) of pressed oil, add 45 grams of water, stir and heat the oil to 65°C, add water within 9 minutes, continue stirring at a speed of 60 rpm, stop stirring after 30 minutes, After keeping warm for 3 hours, the oil and soapstock were obviously separated, and the oil sample was taken out for inspection, and the phosphorus content was 15×10 -6 mg / Kg.

[0049] (2) Deacidification

[0050] Get 1400 grams of degummed oil, the acid value of this oil is 10, needs 22 · Be through calculation - Sodium hydroxide lye 80 grams. Adjust the oil temperature to 30°C, stir and add lye, the lye is added within 10 minutes, the stirring speed is 60 rpm at the beginning, and when the oil and soap are clearly separated, reduce the speed to 30 rpm. At the same time, the oil temperature was heated to 60°...

Embodiment 3

[0055] One, the wax gourd crude oil production process is identical with embodiment 1.

[0056] Two, the refining process of wax gourd oil is identical with embodiment 2.

[0057] 3. Esterification process

[0058] Take 415 grams of refined and dried wax gourd refined oil, add 50 grams of methanol, and 2.08 grams of catalyst potassium hydroxide, mix methanol and potassium hydroxide and pour it into a 1000-milliliter Erlenmeyer flask containing 415 grams of wax gourd refined oil, and heat to 40°C, stirred and reacted for 60 minutes, stopped stirring, heated to 80°C, and distilled off residual methanol. Cooling and standing for 60 minutes, the light phase crude biodiesel and heavy phase crude glycerin were separated. The potassium hydroxide residue in the lower heavy phase was filtered off to obtain 70 grams of crude glycerol. Add 40 grams of 8% dilute sulfuric acid to the light-phase crude biodiesel, wash it, and then wash it twice with warm water at about 50°C. After draini...

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Abstract

The process of preparing biological diesel oil with alder Alnus oil includes the following steps: collecting alder Alnus fruit, pre-treatment and squeezing to obtain coarse alder Alnus oil; refining alder Alnus oil through depositing, filtering, degumming, deacidifying, washing and dewatering; the esterification between refined alder Alnus oil and fatty alcohol in the weight ratio of 100 to 10-20 at 40-70 deg.c under stirring and in the presence of alkaline catalyst for 30-60 min; and distilling, filtering, separating, washing and drying to obtain biological diesel oil and glycerin. The present invention has simple technological process, low cost and low power consumption, and the biological diesel oil product has excellent quality.

Description

technical field [0001] The invention relates to a method for preparing biodiesel, in particular to a method for preparing biodiesel from wax gourd oil. Background technique [0002] Biodiesel refers to fatty acid methyl or ethyl esters obtained from oils (including animal and vegetable fats) through a series of treatments and chemical reactions. At present, the raw materials mentioned in all relevant reports at home and abroad are nothing more than rapeseed oil, soybean oil, peanut oil, cottonseed oil, palm oil, and catering swill oil or animal offal oil. These raw materials are not suitable for China's national conditions. The reasons are as follows: (1) China is a big country with 1.3 billion people. On the limited area of ​​arable land, the first thing to solve is the problem of human rations and cooking oil. Therefore, this situation determines that it is impossible for China to use a large area of ​​limited arable land to plant land for biodiesel raw materials. (2) Ot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G3/00
CPCY02E50/10Y02P30/20
Inventor 储浩
Owner 储浩
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