Method for coupling and manufacturing ricinus oil biological diesel oil

A technology of biodiesel and castor oil, which is used in the preparation of liquid hydrocarbon mixtures, biofuels, biomaterials, etc.

Inactive Publication Date: 2008-01-23
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] According to the characteristics of castor oil, in order to overcome the problems of existing biodiesel preparation, the present invention improves the process route and couples the two parts of oil leaching and biodiesel preparation reaction

Method used

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  • Method for coupling and manufacturing ricinus oil biological diesel oil

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Embodiment 1

[0014] Embodiment 1, graded and selected castor beans, after cleaning, peeling and squeezing, using potassium methylate as a catalyst, taking methanol as a leaching solvent and transesterification agent, the ratio of the moles of methanol and the pretreated castor beans Add the ingredients according to 3:1 and 0.5% of the catalyst together into the reaction device, and react at 30° C. for 0.5 hours under ultrasonic enhancement. After the castor oil methyl ester and glycerin are produced, the finished biodiesel is obtained through a filter device and a vacuum distillation device. During the experiment, the ultrasonic power was selected to be 8W / L, and the ultrasonic frequency was 20kHz.

Embodiment 2

[0015] The difference between embodiment 2 and embodiment 1 is that select sodium methylate as catalyzer, the ratio of the mole of methyl alcohol and castor bean after pretreatment is 6: 1, and catalyst mass percent is 0.5%, and temperature of reaction is 90 ℃, and the reaction time is For 1 hour, the selected ultrasonic power is 30W / L, and the ultrasonic frequency is 100kHz.

Embodiment 3

[0016] Embodiment 3 and embodiment 1 difference are that select sodium hydroxide as catalyzer, the ratio of the mole of methyl alcohol and castor bean after pretreatment is 9: 1, and catalyst mass percent is 1.2%, and temperature of reaction is 70 ℃, and the reaction time 6 hours, no physical enhancement.

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Abstract

The invention discloses a method for preparing the castor oil biodiesel by ''leaching and reaction'' coupled method, which is that the castor seeds are used as raw materials and the castor oil leaches to perform exchange reaction and coupling with ester to prepare biodiesel under the ultrasonic condition or condition without physical field. The leaching and the ester exchange reaction are finished in one step, which greatly simplifies the process flow and saves the production cost. The methanol can function as extraction solvent or ester-exchange agent, which is beneficial for cycling and saving raw materials and also beneficial for separation of the later stage materials. The method solves the problems of higher requirement of the current biodiesel preparation method on the oil quality, long process line, high consumption of various materials, reagents and equipments, more serious reagent pollution and higher production cost.

Description

Technical field [0001] The invention relates to the field of biodiesel preparation, in particular to a process method for preparing biodiesel through a "leaching + reaction" coupling method using castor beans as raw materials. Background technique [0002] Biodiesel is more and more favored by people because of its unique environmental protection and renewability. Some of the biodiesel produced from various oily vegetable or animal fats have entered the stage of commercial application. General biodiesel, its economy can not be compared with petrochemical diesel. [0003] Castor (Ricinus communis) is a 1-year or perennial herbaceous plant of Euphoribia L., which is resistant to barrenness, strong adaptability, convenient cultivation and management, relatively extensive cultivation, high comprehensive utilization value, and long industrial chain. Regardless of the region and climate, it is resistant to certain salinity and alkali, has few pests and diseases, has strong stres...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G3/00C11C3/10C11B1/12
CPCY02E50/13C10L1/026C10G3/00C11C3/003Y02E50/10Y02P30/20
Inventor 张东翔左笑
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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