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Production of biological diesel oil

A technology of biodiesel and microbial bacteria, which is applied in the preparation of liquid hydrocarbon mixtures, biological raw materials, petroleum industry, etc., to achieve the effects of simple preparation methods, reduced operating costs, and shortened processes

Inactive Publication Date: 2007-04-04
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above methods all use base catalysis as the core technology, and there is no mention of directly using oil-containing microbial cells as raw materials to directly prepare biodiesel through acid-catalyzed transesterification.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Put 1.0 g of dry yeast powder (Lipomyces starkeyi AS 2.1560, purchased from China Common Microorganism Culture Collection and Management Center) with an oil content of 50% into a 100 ml flask; add pre-prepared concentrations of 0.1M and 1.0M H 2 SO 4 ~ 20 ml of methanol solution, under the action of stirring and mixing, reflux at 70 ° C for 20 hours; after the reaction is complete, cool, filter, collect the liquid phase, and distill off the methanol solvent; add 20 ml of petroleum ether and 20 ml of distilled water, shake fully , layered after standing, and removed the water phase; then added 20 ml of distilled water, fully oscillated, layered after standing, and removed the water phase; the petroleum ether phase was dehydrated with anhydrous sodium sulfate, and after filtration, the petroleum ether was distilled and recovered. The residue was baked at 105°C for 1 hour to obtain a light yellow, clear and transparent liquid product, namely biodiesel. The yields were 93...

Embodiment 2

[0029] Place 1.0 g of Lipomyces starkeyi (Lipomyces starkeyi) dry bacterial powder with an oil content of 50% in a 100 ml flask; 2 SO 4 ~ 20 milliliters of methanol solution, under the action of stirring and mixing, reflux reaction for 10 hours at 70° C.; other process conditions are the same as in Example 1. The yield was 79.5%.

Embodiment 3

[0031] Put 1.0 g each of Lipomyces starkeyi (Lipomyces starkeyi) with a fat content of 50% and dry yeast powder (Rhodosporidium toruloides) with a fat content of 58% in a 100 ml flask; 20 milliliters of HCl-methanol solution of M was stirred and mixed, and refluxed at 70° C. for 20 hours; other process conditions were the same as in Example 1. The yields were 93.0% and 98.9%, respectively.

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Abstract

Production of biological diesel oil is carried out by taking oily microbial as raw material, taking low-carbon alcohol as ester exchange agent, taking inorganic acid as catalyst, transfer esterification reacting, cooling reactive mixture, filtering, and liquid-phase purifying to obtain the final product. It's cheap and convenient.

Description

technical field [0001] The invention relates to biodiesel, specifically a method for preparing biodiesel, more specifically, a method for preparing biodiesel by using oil-containing microbial cells as raw materials. Biodiesel is produced by using oil-containing microbial cells and low-carbon alcohols to carry out transesterification reaction under acid as a catalyst. Background technique [0002] The organisms on the earth can be divided into three categories: animals, plants and microorganisms, and the corresponding oils can be divided into animal oils, vegetable oils and microbial oils. Under certain culture conditions, some microorganisms produce and store more than 20% of their total biomass in their cells, and these strains are called oleaginous microorganisms. The oil in the cells of oleaginous microorganisms can be extracted by conventional oil extraction methods to obtain microbial oil. Like animal and vegetable oils, the main components of microbial oils are long-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G3/00
CPCY02P30/20
Inventor 刘波赵宗保孙艳
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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