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Method for separating quinoline from coal and biomass coliquified oil product

A biomass and co-liquefaction technology, applied in the field of separation of quinoline, can solve the problems of pollution, many steps, loss of other substances in coal tar, etc., and achieves the effects of low operating cost, simple process and easy industrialization.

Inactive Publication Date: 2012-06-27
CHINA UNIV OF MINING & TECH (BEIJING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But above-mentioned method all uses acid, alkali to handle, and the generation of by-product is arranged, also can cause the loss of other substances in coal tar, there are many steps, and pollution is serious

Method used

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  • Method for separating quinoline from coal and biomass coliquified oil product
  • Method for separating quinoline from coal and biomass coliquified oil product
  • Method for separating quinoline from coal and biomass coliquified oil product

Examples

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Effect test

example 1

[0028] Weigh 60g of activated silica gel, use n-hexane as a solvent, and load it into a chromatography column by wet method; weigh 2.0896g of Shenhua coal and lignin co-liquefaction oil, load it by wet method, and perform column chromatography; Methane, chloroform, ethanol or methanol are mobile phases, detected by Abbe's refractometer, and fractions are collected to obtain quinoline products with a purity of 96%.

example 2

[0030] Weigh 60g of activated alumina, use chloroform as a solvent, and load it into a chromatographic column by wet method; weigh 2.0237g of Shengli coal and lignin co-liquefaction oil, load it by wet method, and perform column chromatography; Dichloromethane, ethyl acetate, ethanol or methanol are mobile phases, detected by Abbe's refractometer, and fractions are collected to obtain quinoline products with a purity of 98%.

example 3

[0032] Weigh 30g of activated silica gel, use n-hexane as a solvent, and load it into a chromatographic column by wet method; weigh 1.1096g of Shenhua coal and sawdust co-liquefied oil, load it by wet method, and perform column chromatography; , chloroform, ethanol or methanol as the mobile phase, detected by Abbe's refractometer, and collecting fractions to obtain the quinoline product with a purity of 96%.

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Abstract

The invention discloses a method for separating quinoline from a coal and biomass coliquified oil product, which comprises the following steps of: filling silica gel, active carbon or aluminum oxide as fixing phases into a chromatographic column by using a wet method; adding a quinoline-contained coal and biomass coliquified oil product to be separated into an upper column of the chromatographic column, eluting by using a flowing phase and collecting eluting components which are at different time intervals and are abundant in quinoline; and detecting by an Abbe refractometer, removing a solvent of the collected eluting components which are abundant in quinoline, and obtaining a quinoline product with purity more than 95 percent. The invention has the advantages of simple process, low production cost, good separating effect, high yield and environmental protection.

Description

technical field [0001] The invention relates to the field of coal-based liquid chemistry, in particular to a method for separating quinoline from coal and biomass co-liquefied oil. Background technique [0002] Quinoline is a naphthalene-like nitrogen-containing heterocyclic compound, also known as azanaphthalene or benzopyridine, a colorless high-refraction basic liquid compound, and its molecular formula is C 9 h 7 N. Quinoline has active chemical properties and is prone to salt formation, electrophilic and nucleophilic substitution, hydrogenation and oxidation reactions. It is an important starting material or intermediate for the synthesis of medicines, dyes, pesticides and various chemical auxiliaries. [0003] In coal liquefaction products, quinoline is one of the important nitrogen-containing compounds. Due to the active chemical properties of quinoline, it is easy to poison and deactivate the catalyst in the process of catalytic hydrogenation and upgrading of coal...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D215/06
Inventor 王永刚许德平郭相坤袁振杨帆张中华
Owner CHINA UNIV OF MINING & TECH (BEIJING)
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