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Compound demulsifying agent for wood tar dehydration

A demulsifier and composite technology, which is applied in the field of dehydration of biomass pyrolysis and carbonization products, can solve the problems of inability to break demulsification of wood tar, improve the speed and quality of pretreatment, reduce interfacial tension, and achieve good demulsification effect. Effect

Inactive Publication Date: 2018-05-08
BEIJING SANJU GREEN ENERGY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to overcome the defect that the demulsifiers in the prior art cannot achieve an ideal demulsification effect on wood tar, and then provide a demulsifier suitable for dehydration of wood tar to achieve rapid and high-quality demulsification of wood tar. dehydration

Method used

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  • Compound demulsifying agent for wood tar dehydration
  • Compound demulsifying agent for wood tar dehydration
  • Compound demulsifying agent for wood tar dehydration

Examples

Experimental program
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Effect test

Embodiment 1

[0042] The oil-soluble composite demulsifier for wood tar dehydration provided in this example is composed of: 45 g of block polyether demulsifier AP221 with amine as the initiator, 5 g of sodium perfluorooctanoate, and dodecylbenzenesulfonic acid Mixture with isopropanol 3g, heavy aromatic hydrocarbon solvent 1000 # 47g.

Embodiment 2

[0044] The oil-soluble composite demulsifier for wood tar dehydration provided in this example is composed of: 23g of block polyether demulsifier AR36 with alkyl phenolic resin as the initiator, block polyether demulsifier AR36 with amine as the initiator Segment polyether demulsifier AE805 120g, sodium perfluorononenyloxybenzene sulfonate 3g, mixture of dodecylbenzenesulfonic acid and isopropanol 4g, aromatic solvent 150g # 50g.

Embodiment 3

[0046] The water-soluble composite demulsifier for wood tar dehydration provided in this example is composed of: 20 g of block polyether demulsifier AE8051 with amine as the initiator, and block polyether with alcohol as the initiator Demulsifier BP2040 25g, sodium perfluorooctanoate 3g, mixture of acetic acid and butanol 2g, 20wt% methanol aqueous solution 48g.

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Abstract

The invention relates to the technical field of biomass energy, in particular to a dehydration technology applicable to biomass pyrolysis and carbonization products. For wood tar, a novel compound demulsifying agent is firstly researched and developed, and can be applicable to dehydration of the wood tar. By adding of an adjuvant, effects of solubilization, dispersion and pH value adjustment can be achieved; other acid and alkali adjusters are not required to be added; demulsifying and dehydrating effects are achieved through the synergistic effect among a polyether demulsifying agent, a fluorocarbon surfactant and the adjuvant. The compound demulsifying agent provided by the invention can be applied to the wood tar obtained by carbonization and pyrolysis of various biomasses, and is goodin broad spectrum; furthermore, a demulsified interface is clear, and the demulsifying effect is good; the wood tar subjected to the dehydration treatment is low in moisture content. Reagents used forcompounding are all known or available substances, so that the cost required for synthesis of a large number of new products is reduced; efficient and low-cost production of the demulsifying agent isrealized.

Description

technical field [0001] The invention relates to the technical field of biomass energy, in particular to a technology for dehydrating biomass pyrolysis carbonization products. Background technique [0002] Biomass pyrolysis and carbonization technology is a very promising biomass energy utilization technology. By pyrolysis and carbonization of biomass, two types of pyrolysis products, gas and solid, can be obtained. Among them, the solid product is biomass charcoal after cooling; and the gaseous product can be purified and separated after cooling to obtain biomass gas, Wood tar and wood vinegar. [0003] Among them, wood tar is a black, viscous mixed liquid mainly composed of hydrocarbons, acids and phenols. Through further processing of wood tar, products such as biomass fuel, creosote, and wood pitch can be obtained. However, wood tar also contains a large amount of moisture and solid impurities, which will not only cause harm to subsequent processing equipment, but also ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10C1/02
CPCC10C1/02
Inventor 李泓田然张少明李永杰
Owner BEIJING SANJU GREEN ENERGY TECH CO LTD
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