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Organic carrier hydrogen storage system and preparation method thereof

A technology for organic matter and hydrogen storage, applied in chemical instruments and methods, hydrogen, inorganic chemistry, etc., can solve the problems of unsatisfactory high temperature activity, stability and low temperature dehydrogenation activity of catalysts, and achieve high chemical and thermal stability. , The effect of easy adjustment of performance and easy structure

Inactive Publication Date: 2013-07-31
SHANGHAI UNIV OF ENG SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the high-temperature activity, stability and low-temperature dehydrogenation activity of existing catalysts are still unsatisfactory

Method used

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  • Organic carrier hydrogen storage system and preparation method thereof
  • Organic carrier hydrogen storage system and preparation method thereof
  • Organic carrier hydrogen storage system and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] [EMIM] PF 6 - Preparation of PtB ionic liquid catalytic system

[0050] Add 5g [EMIM]PF into a 25ml three-neck flask 6 ionic liquid, and slowly add 0.69 g of chloroplatinic acid prepared in advance under the conditions of nitrogen atmosphere and constant temperature magnetic stirring at 80° C. (the platinum content in chloroplatinic acid is about 37%, and 0.69 g of chloroplatinic acid is about 0.25 g of platinum). Keep stirring at constant temperature for a period of time until the chloroplatinic acid is completely dissolved in the ionic liquid, and it is dark yellow and transparent.

[0051] Weigh a certain amount of potassium borohydride-potassium hydroxide mixed solution and add it to the above-mentioned ionic liquid (ice bath) until no hydrogen is released. At this time, the ionic liquid turns from clear and transparent dark yellow to black, indicating that chloroplatinic acid has been reduced to Platinum metal, namely [EMIM]PF 6 -PtB ionic liquid catalytic syste...

Embodiment 2

[0053] According to the method of implementation 1, add the active metal precursor PdCl 2 That is to make [EMIM]PF 6 -PdB ionic liquid catalytic system. Catalyst activity evaluation see figure 1 .

Embodiment 3

[0055] According to the method of implementation 1, add active metal precursor Cu(NO 3 ) 2 That is to make [EMIM]PF 6 -CuB ionic liquid catalytic system. Catalyst activity evaluation see figure 1 .

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Abstract

The invention relates to an organic carrier hydrogen storage system and a preparation method thereof, the system comprises the following components in partportion by weight: 1 partortion of metal active component, 10-100 partortions of dehydrogenation reactant and 20-50 partortions of ionic liquid solvent, soluble metal active component compound is added into the ionic liquid solvent under the nitrogen, the mixture is placed into ice bath, then soluble reductive agent is added until no hydrogen is released, and then measured dehydrogenated reactant is added so as to obtain thean organic carrier hydrogen storage system. Compared with the prior art, the organic carrier hydrogen storage systeminvention is safe and convenient to store and transport, and facilitates large-scale hydrogen transportation in long distance, the structure is easy to process, the performance is easy to adjust, the chemical and heat stability is high, the system can be repeatedly used under higher temperature, andthe product can be reused through hydrogenation.

Description

technical field [0001] The invention relates to a dehydrogenation catalyst for petroleum hydrocarbon products and a preparation method thereof, in particular to an organic carrier hydrogen storage system and a preparation method thereof. Background technique [0002] In 1975, O.S ultan and M.S haw first proposed the concept of using recyclable liquid chemical hydrogen carrier to store hydrogen. This technology realizes hydrogenation and dehydrogenation by means of a pair of reversible reactions between hydrogen storage agents such as certain alkenes, alkynes or aromatics and hydrogen. From the perspectives of reaction reversibility and hydrogen storage capacity, benzene and toluene are ideal organic liquid hydrogen storage agents, and cyclohexane (cyclo-hexane, Cy for short) and methyl cyclohexane (methyl cyclohexane, for short MCH) is an ideal organic liquid hydrogen carrier. The reversible hydrogen storage and discharge system of organic liquid hydride is a closed cycle ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B3/26
CPCY02P20/54
Inventor 唐博合金徐菁利谢亮亮杨志宁徐福书赵家昌唐敖民
Owner SHANGHAI UNIV OF ENG SCI