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Chloride-carbonaceous skeleton composite adsorbent and preparation method thereof

A compound adsorption and chloride technology, which is applied in chemical instruments and methods, and other chemical processes, can solve problems affecting the mass transfer capacity of adsorbents and clogging micropores, so as to reduce energy consumption, increase load strength, and improve utilization. Effect

Active Publication Date: 2012-11-14
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the load is too large or the binder is used for curing and forming, there is also a phenomenon that the micropores are blocked and the mass transfer capacity of the adsorbent is affected.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] First crush 200 grams of paulownia wood into particles smaller than 100 mesh; in a 1000ml beaker, dissolve 200 grams of calcium chloride in 200ml of water at 90°C, add the prepared paulownia wood powder and stir evenly, put it in an oil bath, Maintain constant temperature for 12 hours; spread the impregnation in the beaker into a blast drying oven at a drying temperature of 120°C and a drying time of 6 hours; add 20 grams of starch and 60ml of water into the beaker, stir evenly, and heat to 90°C until the starch gelatinization is completed Mix the dried impregnation and gelatinized starch evenly to form a hard mud, and then put it into the mold evenly, with a pressing pressure of 10MPa. After pressing, put it into a vacuum muffle furnace and heat it to 500°C to maintain the temperature After 1 hour, it was cooled to room temperature and then taken out to obtain a calcium chloride-carbonaceous framework composite adsorbent.

[0028] The porous structure of the calcium ch...

Embodiment 2

[0030] Mix 100 grams of straw and 100 grams of anthracite and crush them into powders smaller than 100 mesh; in a 1000ml beaker, dissolve 200 grams of manganese chloride in 200ml of water at 90°C, add the prepared mixed powder of straw and bituminous coal and stir well , put it into a constant temperature water tank, and maintain a constant temperature for 12 hours; spread the impregnation in the beaker into a blast drying oven at a drying temperature of 120°C and a drying time of 4 hours; mix the dried impregnation with 30 grams of ethyl cellulose powder evenly, Then put it into a mold together with an iron plate with burrs, and heat press it; put the prepared sample together with the iron plate into a vacuum muffle furnace to heat to 500°C, maintain the temperature for 1h, take it out after cooling to room temperature, and obtain Manganese Chloride—Carbonaceous Skeleton Composite Adsorbent.

[0031]The pore structure of the manganese chloride-carbonaceous skeleton composite ...

Embodiment 3

[0033] 100 grams of coconut shells are crushed into particles smaller than 100 meshes, 100 grams of apricot kernel carbonized materials are crushed into particles of smaller than 100 meshes; in a 1000ml beaker, dissolve 150 grams of strontium chloride in 100ml of water at 90°C, and add the completed Stir coconut shell and apricot kernel charcoal powder evenly, put it into an oil bath box, and maintain a constant temperature for 24 hours; spread the impregnation in the beaker into a blast drying oven, drying temperature 120 ° C, drying time 2 hours; add 30 grams of waste water to the beaker Pulp and 50 grams of silicon carbide powder, mix the dried impregnation, waste paper pulp and silicon carbide powder evenly to form a hard mud, then evenly put it into the mold, the pressing pressure is 15MPa, after pressing, put it into the vacuum muffle Heat the furnace to 600°C, maintain the temperature for 1 hour, take it out after cooling to room temperature, and obtain the strontium chl...

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PUM

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Abstract

The invention belongs to the fields of adsorptive refrigeration / heat pumps, adsorptive separation purification and hydrogen storage, and particularly relates to a chloride-carbonaceous skeleton composite adsorbent and a preparation method thereof. The adsorbent is characterized by comprising the following raw materials: based on a carbonaceous precursor, 0.5 to 2 percent of chloride, 0 to 25 percent of adhesive and 0 to 50 percent of heat conducting material. The preparation method for the chloride-carbonaceous skeleton composite adsorbent is characterized by comprising the steps of crushing of the carbonaceous precursor, preparation of impregnation liquid, impregnation of the carbonaceous precursor, forming, air-blasting drying, carbonization and activation and the like. The adsorbent prepared by the method fully solves the problem of mass transfer coefficient decline caused by filling the chloride and pressing a plugging micropore at the same time of ensuring efficient heat transfer, and obviously improves the loading strength and the utilization rate of the chloride.

Description

technical field [0001] The invention belongs to the technical field of adsorption refrigeration / heat pump, separation and purification of pressure swing adsorption and hydrogen storage. In particular, it relates to a chloride-carbon skeleton composite adsorbent and a preparation method thereof. Background technique [0002] With the deepening of people's understanding of energy conservation and environmental protection, low-carbon economy will gradually become the global ideology and international mainstream values. Low-carbon economy has become a hot spot in the world's economic development with its unique advantages and huge market. At present, the main refrigeration method is electric refrigeration, which requires a large amount of high-grade electric energy. Adsorption refrigeration / heat pump technology has become a research and development area in the field of refrigeration because it uses low-grade heat sources and renewable energy such as solar energy as driving ener...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/24B01J20/22B01J20/32
Inventor 赖艳华董震吕明新
Owner SHANDONG UNIV
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