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Process for producing lignin diesel

A production process, lignin technology, applied in the production process of emulsified diesel oil containing lignin, can solve the problems of poor stability, high cost, low lignin addition, etc., and achieve stable system, easy operation and high lignin content Effect

Inactive Publication Date: 2011-09-14
NORTHEAST FORESTRY UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The present invention proposes to form a homogeneous and stable emulsified diesel oil with an aqueous solution dissolved in alkali lignin and diesel oil based on the improved idea, so as to solve the defects of low lignin addition amount, poor stability, and high cost of lignin diesel oil.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0029] First, the emulsifier Span-80 and CTAB are mixed evenly under the action of the colloid mill in proportion, among which the weight of Span-80 is 1.945kg, and the weight of CTAB is 1.055kg. In 38.389kg diesel oil, obtain stable dispersion system, then add the co-emulsifier n-butanol of 1.111kg and the oil product improver that contains 0.01kg pyrogallic acid, 0.04kg cetyl alcohol and 0.05kg isooctyl nitrate, finally put Dissolve 1.875kg of alkali lignin in 5.625kg of water, add 10% hydrogen peroxide, decolorize at 60°C for 40 minutes, filter and remove impurities, inject the above dispersion system at a uniform speed, continue to circulate and disperse for 3 times with a colloid mill, take out the natural sedimentation for 2 days, and filter the obtained supernatant The liquid is lignin diesel.

example 2

[0031] First, the emulsifier Span-80 and CTAB are mixed evenly under the action of the emulsification pump in proportion, wherein the weight of Span-80 is 3.469kg, and the weight of CTAB is 0.531kg, and then the prepared emulsifier is evenly dispersed in the In 39.519kg diesel oil, obtain stable dispersion system, then add the co-emulsifier n-butanol of 1.481kg and the oil improver that contains 0.005kg pyrogallic acid, 0.005kg cetyl alcohol and 0.025kg isooctyl nitrate, finally add 1.25 Dissolve kg of alkali lignin in 3.75kg of water, add 5% hydrogen peroxide, decolorize at 70°C for 20 minutes, filter and remove impurities, then inject into the above dispersion system at a uniform speed, continue to circulate and disperse for 5 times with an emulsification pump, take out and settle naturally for 2 days, and filter the obtained supernatant liquid That is lignin diesel.

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Abstract

The invention discloses a process for producing lignin diesel. The method is characterized by comprising the following steps of: uniformly mixing the components of an emulsifier in a ratio, forcibly dispersing the uniformly mixed emulsifier and diesel by a physical means to obtain a stable dispersing system, then adding assistant emulsifier and an oil modifier in a certain ratio, injecting decolored alkali lignin aqueous solution from which impurities are removed into the system at a constant speed, continuously dispersing cyclically for certain times, taking out and naturally settling for 1 to 2 days, and filtering to obtain supernate, namely the lignin diesel. In the process, the lignin diesel is prepared from the waste lignin used as raw materials instead of partial diesel. The process has the advantages of simplicity, easiness in amplification, and industrialization and the like.

Description

technical field [0001] The invention relates to a fuel production process using biomass as a fuel additive, in particular to a lignin-containing emulsified diesel production process with the advantages of energy saving, environmental protection, long storage period, and convenient use. technical background [0002] Lignin is a kind of substance composed of polymerized aromatic alcohols, which are respectively: p-coumaryl alcohol, coniferyl alcohol, 5-hydroxy coniferyl alcohol, and sinapyl alcohol. It is a complex phenolic polymer formed by four alcohol monomers. A polycyclic polymer organic compound containing many electronegative groups. It is one of the components that make up the plant cell wall, mainly located between cellulose fibers, its composition and properties are relatively complex, and it has the function of strengthening the cell wall and bonding fibers in plant tissues. In woody plants, lignin accounts for 25% and is the second most abundant organic matter in ...

Claims

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Application Information

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IPC IPC(8): C10L1/32C10L1/19C10L1/222C10L1/182C10L1/14C10L1/23C10L1/188
Inventor 祖元刚赵修华李汶罡祖纯林祖柏实祖畅张宝友杨磊路琪张军孙志强
Owner NORTHEAST FORESTRY UNIVERSITY
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