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Method for purifying pyroligneous liquor

A technology of wood vinegar and tree species, which is applied in the manufacture of pyroligneous acid, the petroleum industry, biofuels, etc., can solve the problems of wood vinegar functionality and use efficiency reduction, and achieve the goal of increasing the selection range and reducing the use rate Effect

Inactive Publication Date: 2013-10-23
李燕鸿
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the different components contained in different branches, the functionality and use efficiency of wood vinegar are reduced. Therefore, after the production of wood vinegar, it is an important task for researchers to invent a method for purifying wood vinegar.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] a. Crude wood vinegar obtained from any tree species from an external storage container at about 35°C in a preheater heated by steam;

[0014] b. The preheated crude wood vinegar is heated up to 85°C and maintained at this temperature, and degassed in a degasser under a pressure of 1.0 mbar;

[0015] c. and pass through the short-path distiller at a rate of 2000kg / hr at a pressure of 0.008 mbar, so that the temperature of the water entering the internal condenser is maintained at 27°C, so that the fatty acid is condensed back into the degasser container, and the remaining steam is at a temperature of Condensation in an externally cooled condenser at 10°C;

[0016] d. Distill the remaining steam condensed in step c to remove the fatty acid at a temperature of 29°C and a pressure of 0.003 mbar, and after cooling to 60°C in a cooler, pump the residue in the still to a storage container; Refined wood vinegar.

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PUM

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Abstract

The invention discloses a method for purifying pyroligneous liquor, relating to a purification method of liquor and belonging to the technical field of purification. The method is characterized in that the pyroligneous liquor is subjected to preheating and condensation for degasification, so that the nourishment parts in the crude pyroligneous liquor can be kept. The method has the beneficial effects that the selection range of branches is increased during the pyroligneous liquor preparation, and the prepared pyroligneous liquor has strong functionality and high availability factor; the method can used for purifying the pyroligneous liquor, so that the problem that the prepared pyroligneous liquor has low availability factor because different varieties of trees contain different substances can be solved.

Description

technical field [0001] The invention relates to a liquid purification method, which belongs to the technical field of extraction, in particular to a method for purifying wood vinegar. Background technique [0002] Wood vinegar is a liquid that is condensed by natural condensation of various miscellaneous wood branches in a charcoal kiln to produce smoke. The main components of wood vinegar are acetic acid, phenols, and water, of which the organic component acetic acid accounts for more than 47%. The product has strong bactericidal and antibacterial functions at high concentrations; it can inhibit the reproduction of miscellaneous bacteria at low concentrations, and has the effect of preventing bacteria and insects; it can also be used as a deodorant by neutralizing nitrogen and sulfur compounds; Vinegar liquid can sterilize, disinfect and avoid pests because it contains many phenolic substances, and is used as a disinfectant and an insect repellent. It has been widely used...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10C5/00
CPCY02E50/14Y02E50/10
Inventor 李燕鸿
Owner 李燕鸿