CN104162406A - Composition and configuration of microporous material used for adsorbing natural gas - Google Patents
Composition and configuration of microporous material used for adsorbing natural gas Download PDFInfo
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- CN104162406A CN104162406A CN201410332515.1A CN201410332515A CN104162406A CN 104162406 A CN104162406 A CN 104162406A CN 201410332515 A CN201410332515 A CN 201410332515A CN 104162406 A CN104162406 A CN 104162406A
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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
The present invention relates to natural gas storaging and transport technology field, be specifically related to a kind of for absorbed natural gas poromerics.
Background technology
Natural gas is as the high clean energy of a kind of calorific value, and its development and utilization is more and more subject to people's attention, and has become the key player in energy consumption structure.
But how transportation of natural gas is one of main aspect limiting its application always.At present, the accumulating of natural gas mainly comprises compressed natural gas (CNG), liquefied natural gas (LNG) and absorbed natural gas (ANG) three kinds of modes.Wherein CNG adopts the bundled tube container traffic under elevated pressures more, and gas storage pressure high (20 ~ 25 MPa) needs expensive compound compressor, and energy consumption is large, and reservoir vessel needs high pressure resistant, from great, has certain risk.LNG needs cryogenic refrigeration, and energy consumption is high, and the maintaining of gas storage facility is more complicated, liquefaction process complexity, and equipment manufacturing cost is high, and operating cost is also higher.ANG has simple process, uses safety and reservoir vessel not need the advantages such as heat insulation, is that two kinds of technology of CNG and LNG are incomparable, but large-scale industrial application not also at present, only in conceptual phase.
The key of ANG technology is to develop the adsorbent that adsorption efficiency is high.Methane is spherical nonpolar molecule, and the Van der Waals force between adsorbent only has dispersion force, thereby the polarity of adsorbent surface is very little on adsorption process impact, its adsorbance depends primarily on micro pore volume and the specific area of adsorbent, thereby the selection of adsorbent is very crucial.
Although the sorbing material of the micropore prosperities such as silica gel, zeolite, molecular sieve, aluminium oxide, active carbon, NACF, metal organic frame compound is studied and utilization.But, the adsorbent being in the news at present, its absorption property is not also very desirable, and it is less to be combined the example utilizing and be applied.
Graphene is a kind of carbon nanomaterial with two-dimension plane structure of discovered in recent years, and its special monoatomic layer structure makes it have the physicochemical properties of many uniquenesses, but there is not yet the report that is applied to Adsorbed Natural Gas Technology.
Summary of the invention
The present invention discloses a kind of zeolite, active carbon that utilizes high-specific surface area, flourishing microcellular structure, and there is the alumina material of higher mechanical strength, in conjunction with the physicochemical property of Graphene excellence, develop a kind of compound honeycomb ceramics microporous adsorbent material for absorbed natural gas.
The present invention realizes by the following method:
A kind of composition for absorbed natural gas poromerics and configuration are by zeolite, active carbon, aluminium oxide, Graphene composition, its mesolite, active carbon, aluminium oxide is 80～200 object powder body materials, Graphene is the powder body material of particle diameter 50nm ~ 50 μ m, and quality proportioning is zeolite: active carbon: aluminium oxide: Graphene=25～75:25～75:12～25:0.5～10.
Concrete grammar carries out as follows:
(1) take zeolite, active carbon, aluminium oxide and graphene powder by described proportioning, and fully mix;
(2) in the powder mixture through step (1) gained, add pure water appropriate, with 100 ~ 500r/min mechanical agitation, after 30 ~ 60min, mediate;
(3) by using in the screw extruder with honeycomb die and extrude through the material of step (2) gained, be shaped to cellular cylinder, its eyelet is distributed as 1 ~ 9/cm
2, its eyelet aperture is 0.5 ~ 2mm;
(4) dry under 100 ~ 120 DEG C of conditions, make product.
After tested, the absorbed natural gas material micropore size of compound honeycomb ceramics making is 0.5～3nm, specific area 2000 ~ 3000 m
2/ g, Micropore volume accounts for the more than 85% of total pore volume, and total pore volume is greater than 1.0 mL/g.Data show, the absorbed natural gas poromerics of new type compound honeycomb ceramics of exploitation is a kind of good adsorbent, is highly suitable for Adsorbed Natural Gas Technology.
The present invention has not only obtained the sorbing material with flourishing microcellular structure, high-specific surface area, while is due to the performance such as heat conduction and mechanics of Graphene excellence, strengthen mechanical strength, heat conductivility, the gas analysis feature of material, realized the object of further raising absorption transportation of natural gas ability.
Detailed description of the invention
Further set forth the present invention below in conjunction with specific embodiment.
1. abrasive dust, granulation.To zeolite, active carbon, aluminium oxide carries out fragmentation, granulation processing respectively, screening 80～200 orders, and choose the graphene powder material that particle diameter is 50nm ~ 50 μ m, for subsequent use.
2. weigh, mix.In quality proportioning zeolite: the ratio of active carbon: aluminium oxide: Graphene=50:27:16:7 weighs, and measures respectively zeolite 100g, active carbon 54g, aluminium oxide 32g, Graphene 14g.
3. stir, mediate.Be advisable adding pure water to consolidate shape with half in the powder mixture weighing after proportioning, with 100 ~ 500r/min mechanical agitation, after 30 ~ 60min, mediate.
4. moulding.Select honeycomb die, eyelet is distributed as 1 ~ 9/cm
2, eyelet aperture is 0.5 ~ 2mm, extrusion molding in screw extruder makes cellular cylinder.
5. dry under 100 ~ 120 DEG C of conditions, make product.
After tested, the absorbed natural gas material micropore size of compound honeycomb ceramics making is 1.5nm, specific area 2500 m
2/ g, Micropore volume is 90%.
Claims (5)
1. for composition and the configuration of absorbed natural gas poromerics, it is characterized in that this poromerics is by zeolite (1), active carbon (2), aluminium oxide (3), Graphene (4) composition.
2. a kind of composition for absorbed natural gas poromerics according to claim 1 and configuration, the Graphene that it is characterized in that forming this poromerics is the powder body material of particle diameter 50nm-50 μ m.
3. a kind of composition for absorbed natural gas poromerics according to claim 1 and configuration, is characterized in that the composition quality proportioning of this poromerics is: zeolite: active carbon: aluminium oxide: Graphene=25～75:25～75:12～25:0.5～10.
4. a kind of composition for absorbed natural gas poromerics according to claim 1 and configuration, the micropore size that it is characterized in that this poromerics is 0.5～3nm.
5. a kind of composition for absorbed natural gas poromerics according to claim 1 and configuration, is characterized in that this poromerics is shaped to cellular cylinder, and its eyelet is distributed as 1 ~ 9/cm
2, its eyelet aperture is 0.5 ~ 2mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410332515.1A CN104162406A (en) | 2014-07-14 | 2014-07-14 | Composition and configuration of microporous material used for adsorbing natural gas |
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| CN201410332515.1A CN104162406A (en) | 2014-07-14 | 2014-07-14 | Composition and configuration of microporous material used for adsorbing natural gas |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108097206A (en) * | 2017-12-07 | 2018-06-01 | 浙江海洋大学 | A kind of preparation method of adsorbent to small molecule hydro carbons strong adsorption force |
Citations (3)
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| JPH07155587A (en) * | 1993-12-09 | 1995-06-20 | Mitsubishi Gas Chem Co Inc | Highly adsorptive carbon material and its production |
| CN1360168A (en) * | 2000-12-20 | 2002-07-24 | 中国科学院广州能源研究所 | Low-pressure high-density storage method for gas |
| CN103298550A (en) * | 2010-09-03 | 2013-09-11 | 印度理工学院 | Reduced graphene oxide-based-composites for the purification of water |
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2014
- 2014-07-14 CN CN201410332515.1A patent/CN104162406A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07155587A (en) * | 1993-12-09 | 1995-06-20 | Mitsubishi Gas Chem Co Inc | Highly adsorptive carbon material and its production |
| CN1360168A (en) * | 2000-12-20 | 2002-07-24 | 中国科学院广州能源研究所 | Low-pressure high-density storage method for gas |
| CN103298550A (en) * | 2010-09-03 | 2013-09-11 | 印度理工学院 | Reduced graphene oxide-based-composites for the purification of water |
Non-Patent Citations (2)
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| 刘克万等: "天然气吸附储存技术", 《煤气与热力》 * |
| 王晓华等: "甲烷在石墨烯与活性炭上的吸附平衡", 《集美大学学报（自然科学版）》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108097206A (en) * | 2017-12-07 | 2018-06-01 | 浙江海洋大学 | A kind of preparation method of adsorbent to small molecule hydro carbons strong adsorption force |
| CN108097206B (en) * | 2017-12-07 | 2020-08-18 | 浙江海洋大学 | Preparation method of adsorbent with strong adsorption capacity on small molecular hydrocarbons |
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Application publication date: 20141126 |