Composition and configuration of microporous material used for adsorbing natural gas

A technology for adsorbing natural gas and microporous materials, which is applied in the field of natural gas storage and transportation, and can solve the problems of unsatisfactory adsorption performance and no natural gas adsorption technology yet.

Inactive Publication Date: 2014-11-26
NINGXIA BAOTA PETROCHEM SCI & TECH IND DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the adsorption properties of the currently reported adsorbents are not ideal, and there are few examples of their combined utilization and application.
[0006] Graphene is a carbon nanomaterial with a two-dimensional planar structure discovered in recent years. Its special monoatomic layer structure makes it have many unique physical and chemical properties, but there are no reports on its application in the technology of adsorbing natural gas.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] The present invention is further described below in conjunction with specific examples.

[0018] 1. Grinding and granulating. The zeolite, activated carbon, and alumina were crushed and granulated respectively, screened to 80-200 meshes, and graphene powder materials with a particle size of 50nm-50μm were selected for future use.

[0019] 2. Weigh and mix. Weigh according to the ratio of zeolite: activated carbon: alumina: graphene = 50:27:16:7 by mass, and weigh 100g of zeolite, 54g of activated carbon, 32g of alumina and 14g of graphene.

[0020] 3. Stir and knead. It is advisable to add pure water to the powder mixture weighed after proportioning to make it semi-solid, mechanically stir at 100~500r / min, and knead after 30~60min.

[0021] 4. Molding. Honeycomb die head is selected, the hole distribution is 1~9 / cm 2 , with a hole diameter of 0.5~2mm, extruded in a screw extruder to obtain a honeycomb cylinder.

[0022] 5. Dry at 100~120°C to obtain the product. ...

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PUM

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Abstract

The invention relates to the technical field of natural gas storage and transportation, and concretely relates to composition and configuration of a microporous material used for adsorbing natural gas. The disclosed microporous material uses zeolite with high specific surface area and good micropore structure, active carbon and an alumina material with high mechanical strength, combines with a graphene carbon nano-material having a special monoatomic layer and a two dimensional plane structure, excellent physical and chemical performance can be fully used for exploiting the honeycomb ceramics microporous adsorption material used for adsorbing natural gas. The prepared honeycomb ceramics cellular material has high adsorption rate, micropore aperture is 0.5-3nm, specific surface area is 2000-3000m<2> / g, micropore volume accounts for more than 85% of total pore volume, and total pore volume is greater than 1.0mL / g.

Description

technical field [0001] The invention relates to the technical field of natural gas storage and transportation, in particular to a microporous material for absorbing natural gas. Background technique [0002] As a green and clean energy with high calorific value, natural gas has been paid more and more attention to its development and utilization, and has become an important role in the energy consumption structure. [0003] However, how to store and transport natural gas has always been one of the main aspects limiting its application. At present, natural gas storage and transportation mainly include compressed natural gas (CNG), liquefied natural gas (LNG) and adsorbed natural gas (ANG). Among them, CNG is mostly transported in tube-bundle containers under relatively high pressure. The gas storage pressure is high (20~25 MPa), and expensive multi-stage compressors are required, which consume a lot of energy. . LNG requires low-temperature refrigeration, high energy consu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20C10L3/10
Inventor 杨惠琳张立忠马利海杨学彦杨晓丽孔凡靓
Owner NINGXIA BAOTA PETROCHEM SCI & TECH IND DEV
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