Porous solid load metal base ionic liquid for enriching HCl gas

An ionic liquid, porous solid technology, applied in separation methods, dispersed particle separation, other chemical processes, etc., can solve problems such as no public reports yet

Active Publication Date: 2018-01-09
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, also do not see the public report of this technical field yet

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] First, 100 g of N-hexylpyridinium chloride salt ionic liquid and 5 g of copper chloride were heated at 80° C. for 20 h. Mix 100g of N-hexylpyridinium chloride salt ionic liquid and 5g of copper chloride evenly, put it into a beaker, heat to 100°C and stir for 2h, melt until a transparent liquid is obtained, stop heating; transfer the prepared metal-based ionic liquid to an airtight Store in an airtight container.

[0057] Select columnar activated carbon as the carrier, the particle size is 20 mesh, the ash content is 6.0wt%, and the specific surface area is 800m 2 / g, the pore volume is 0.20mL / g, and the activated carbon is vacuum-dried at 100°C for 24h. Dissolve 5 g of the above-mentioned metal-based ionic liquid in 20 g of water, and then add the solvent dissolved in the metal-based ionic liquid to 100 g of activated carbon carrier drop by drop under the action of ultrasonic waves at 20 ° C, mix well and immerse under the action of ultrasonic waves for 2 hours; The...

Embodiment 2

[0060] First, 100 g of N-butyl-N-methylpyrrolidinium bromide ionic liquid and 10 g of palladium chloride were heated at 120° C. for 16 h. Mix 100g of N-butyl-N-methylpyrrolidinium bromide ionic liquid and 10g of palladium chloride evenly, put them into a beaker, heat to 120°C and stir for 3h, melt until a transparent liquid is obtained, and stop heating; the prepared The metal-based ionic liquid is transferred to an airtight container and sealed for storage.

[0061] Columnar carbon nanotubes are selected as the carrier, the particle size is 80 mesh, the ash content is 3.0wt%, and the specific surface area is 400m 2 / g, the pore volume is 0.50mL / g, the carbon nanotubes are vacuum-dried at 110℃ for 20h. Dissolve 20g of the above-mentioned metal-based ionic liquid in 50g of ethanol, then add the solvent dissolved in the metal-based ionic liquid to 100g of carbon nanotube carrier drop by drop under the action of ultrasonic waves at 30°C, mix well and then place under the action ...

Embodiment 3

[0064] First, 100 g of 1-propyl-3-methylimidazolium chloride salt ionic liquid and 7 g of ruthenium chloride were heated at 140° C. for 14 h. Mix 100g of 1-propyl-3-methylimidazolium chloride salt ionic liquid and 7g of ruthenium chloride evenly, put it into a beaker, heat to 130°C and stir for 4h, melt until a transparent liquid is obtained, stop heating; the prepared metal The base ionic liquid was transferred to an airtight container for sealed storage.

[0065] Choose Columnar γ-Al 2 o 3 As a carrier, its particle size is 60 mesh and its specific surface area is 120m 2 / g, the pore volume is 0.40mL / g, the γ-Al 2 o 3 Vacuum drying at 150°C for 18h. Dissolve 25g of the above-mentioned metal-based ionic liquid in 40g of acetone, and then add the solvent with the metal-based ionic liquid dropwise to 100g of γ-Al under the action of ultrasonic waves at 40°C 2 o 3 In the carrier, mix uniformly and impregnate under the action of ultrasonic wave for 4 hours; then heat in va...

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Abstract

The invention discloses a porous solid load metal base ionic liquid for enriching HCl gas. The porous solid load metal base ionic liquid is mainly used for enriching HCl gas in HCl/C2H2 mixed gas or industrial exhaust gas for synthesizing acetylene hydrogen chloride into vinyl chloride or enriching HCl gas in the HCl/C2H2 mixed raw material and catalyzing acetylene hydrochlorination. The porous solid load metal base ionic liquid is composed of a porous solid carrier and an active component loaded on the porous solid carrier, wherein the active component is a metal-based ionic liquid which is acompound of the ionic liquid and metal chloride. The compound ionic liquid adopted by the invention has excellent selective adsorption performance to HCl; the maximal HCl adsorption rate can reach upto 99.5%; after the porous solid load metal base ionic liquid is used for adsorbing, enriching, analyzing and desorbing the HCl gas, the maximal purity of the acquired HCl gas can reach up to 99.99%.

Description

technical field [0001] The invention relates to the field of gas enrichment, in particular to a porous solid-loaded metal-based ionic liquid enriched in HCl gas. Background technique [0002] In the industry of acetylene hydrochlorination to vinyl chloride, there is a mixed gas containing HCl, such as HCl / C 2 h 2 Mixed gas, vinyl chloride industrial tail gas, etc. It is a difficult problem to separate HCl gas from these mixed gases. In industry, alkali solution is usually used to absorb and remove HCl in the tail gas of vinyl chloride industry. Although this method is simple, HCl is converted into chloride salt with low added value and cannot be recycled, and it increases the discharge of waste liquid. [0003] Adsorption separation method is a commonly used method for separating and recovering valuable gas from mixed gas. This method relies on the selective adsorption of specific gases by adsorption materials and realizes adsorption and desorption regeneration with change...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/22B01D53/02B01J20/30
Inventor 李小年赵佳张群峰丰枫狄淑霞
Owner ZHEJIANG UNIV OF TECH
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