Method for preparing alkane type biodiesel by using tung oil

A biodiesel and alkane technology, applied in biofuel, hydrocarbon oil cracking, petroleum industry, etc., can solve problems such as sulfide pollution, achieve high conversion rate, simple preparation process, and simple reaction process
CN103555362AInactive Publication Date: 2014-02-05BEIJING UNIV OF AGRI
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
BEIJING UNIV OF AGRI
Publication Date
2014-02-05
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to the field of renewable energy technology and environmental protection and particularly relates to a method for preparing alkane type biodiesel by using tung oil. The method comprises the following steps: utilizing a porous inorganic material as a carrier and preparing a catalyst through a stepwise impregnation method; introducing hydrogen to reduce and activate the catalyst; introducing gaseous tung oil to carry out a hydrocracking reaction with the hydrogen; and collecting the alkane type biodiesel generated after the hydrocracking reaction. The cetane number of the biodiesel prepared by the method provided by the invention is as high as 81-90 and is similar to that of a petroleum diesel component; the reaction process is environmental-friendly, thereby being suitable for industrial popularization and application; the preparation process is simple, the reaction procedures are simple and the conversion rate is higher than 85%; the highly unsaturated fatty acid of the tung oil limits the utilization of the tung oil serving as a biodiesel raw material, and a catalytic cracking method is adopted to carry out hydrogenation and cracking on the tung oil so that the tung oil is converted into high-quality biodiesel, thereby providing a foundation and reference for full use of tung oil resources.
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Description

Technical field

[0001] The invention relates to the field of renewable energy technology and environmental protection, and in particular to a method for preparing alkane-type biodiesel by using tung oil. Background technique

[0002] Vernicia fordii, also known as tung tree and tung oil tree, is one of the four major woody oil plants in my country. It is a mid-subtropical tree species. It is widely distributed and planted in 12 provinces and cities including Hunan, Hubei, Guizhou, and Guangdong. Tung oil has fast fruiting, the seed oil content reaches 40%, and it is easy to cultivate. Therefore, it can be cultivated and used as a biomass energy tree.

[0003] At present, the main process route of biodiesel is: the use of lower alcohol (methanol) and vegetable oil for transesterification to produce biodiesel (fatty acid methyl ester). On the one hand, fatty acid methyl esters have problems such as high oxygen content, poor combustion performance, and difficult storage. [1] . On th...

Claims

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