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Biodiesel prepared from Idesia polycarpa var.vestita Diels oil and waste oil under alkali catalysis and preparation method thereof

A technology of biodiesel and sycamore oil, which is applied in the field of preparation of renewable biodiesel

Active Publication Date: 2011-10-12
广东鼎峰生态农业开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is based on the development prospects of Jatropha jatropha oil and the amount of waste animal and vegetable oils, and provides a method that is conducive to promoting the solution to the current bottleneck problem in the development of biodiesel.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] (1) Mixed oil: prepare 60.2g of mixed oil with crude oil and waste oil in proportion: 1:3.5;

[0020] (2) Hydration degumming: heat 60.2g of mixed oil to 75°C, add 6% of the weight of mixed oil with water at the same temperature as the oil, and perform hydration and degumming for 45mim;

[0021] (3) Alkali refining and deacidification: After degumming the oil after drying and removing water, heat and control the oil temperature at 75°C, add 6% of the oil weight and a concentration of 20% sodium hydroxide solution under stirring to carry out alkali refining and deacidification Acid 50min;

[0022] (4) Decolorization: Add 6% of the mixed oil weight to the oil after alkali refining at 70°C and activate at 160°C for 1.5h in advance, decolorize for 40min;

[0023] (5) Solid base catalyzed reaction: After mixing 37.28g of decolorized oil with 9.12g of methanol (alcohol to oil molar ratio: 6:1), add 2% solid base (Mg-Al composite oxide), magnetically stirred at a temperature...

Embodiment 2

[0026] (1) Mixed oil: prepare 104.25g of mixed oil with crude oil and waste oil in proportion: 1:0.01;

[0027] (2) Hydration degumming: add 104.25g of mixed oil at 70°C, add water at the same temperature with 7% oil weight, and perform hydration degumming for 40min;

[0028] (3) Alkali refining and deacidification: dry the degummed miscella to remove water, heat and control it to 75°C, add 7% of the miscella under stirring, and a concentration of 18% potassium hydroxide solution for alkali refining and deacidification for 45min ;

[0029] (4) Decolorization: the mixed oil after alkali refining is decolorized by adding activated clay with a weight of 7% of the mixed oil (and pre-activated at 160 °C for 1.5h) at 75°C for 50 minutes;

[0030] (5) Solid base catalyzed reaction: After mixing 52.55g of decolorized mixed oil with 12.35g of methanol (alcohol.oil molar ratio: 6:1), add 3.0% solid base (Mg-Al composite oxide ), the temperature was controlled at 70° C. under magnetic ...

Embodiment 3

[0033] (1) Mixed oil: Prepare 81.55 g of mixed oil from crude oil and waste oil in a ratio of 1:0.1.

[0034] (2) Hydration and degumming: 81.55 g of mixed oil is heated to 70° C., and 6% of the weight of the mixed oil is added with water at the same temperature as the oil to carry out hydration and degumming for 45 mm.

[0035] (3) Alkali refining and deacidification; after the degummed oil is dried and dewatered, heat and control the oil temperature at 75°C, add 6% of the oil weight under stirring, and the concentration is 18% sodium carbonate solution for alkali refining and deacidification 45min.

[0036] (4) Decolorization: Add 6% of the weight of the mixed oil to the mixed oil after alkali refining at 75°C and decolorize it with activated clay for 1.5h at 160°C in advance for 40 minutes.

[0037] (5) solid base catalyzed reaction: after 51.28g decolorized oil is mixed with 12.05g methyl alcohol (alcohol-oil mol ratio: 5.5: 1), add the solid base (Mg-Al composite oxide) by...

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Abstract

The invention discloses biodiesel prepared by performing ester exchange reaction on mixed oil prepared by mixing Idesia polycarpa var.vestita Diels oil and waste animal and vegetable oil in a certain ratio and low-carbon alcohol under catalysis of solid alkali serving as a catalyst. A preparation method of the biodiesel comprises the following process steps of: preparing the mixed oil; hydrating to degum; performing alkali refining to deacidify; decoloring; performing reaction under the catalysis of the solid alkali; and separating. The Idesia polycarpa var.vestita Diels with high yield in the high yield period and good oil quality is developed and utilized, so that the raw material cost is effectively reduced. However, the best method to solve the problem of low yield of the Idesia polycarpa var.vestita Diels in the initial period is that: the Idesia polycarpa var.vestita Diels oil is utilized unremittingly, so that planting area is enlarged by farmers, the effects of half the work with double results such as increasing farmer income and the like are achieved, and the waste oil is used for producing the biodiesel. The biodiesel prepared by the method has high recovery rate and low cost, improves the environment and products, and can reach the national standard.

Description

technical field [0001] The invention relates to the preparation of renewable biodiesel, in particular to a uniform mixed oil prepared in a certain proportion from jatropha oil and discarded animal and vegetable oils (abbreviated as waste oil), which is catalyzed by a solid base to prepare biodiesel and a preparation method thereof. technical background [0002] At present, the diesel oil used in large quantities is diesel oil refined from petroleum, which is a non-renewable resource, and its resource is becoming more and more exhausted. During the production, processing and use of this kind of diesel oil, there are hidden and direct threats to the ecological balance of the natural environment that cannot be underestimated, and it has become one of the prominent problems in the global warming greenhouse effect. Biodiesel has the characteristics of extremely low sulfur content, low aromatic hydrocarbon content, high oxygen content, and less exhaust gas escape. The development...

Claims

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Application Information

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IPC IPC(8): C11B3/00C11B3/06C11B3/10C11C3/10C10L1/02
CPCY02E50/10
Inventor 刘长根秦丹冯义高简华杰陈建文刘剑刘怡冯磊
Owner 广东鼎峰生态农业开发有限公司
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