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Method for preparing hydrogen from methanol

A technology for methanol preparation and hydrogen, applied in chemical instruments and methods, hydrogen, inorganic chemistry, etc., can solve problems such as environmental pollution and depletion of fossil resources, and achieve the effect of reducing requirements

Inactive Publication Date: 2007-01-24
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The application of fossil fuels will eventually lead to the depletion of fossil resources, and its use has also led to serious environmental pollution

Method used

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  • Method for preparing hydrogen from methanol
  • Method for preparing hydrogen from methanol
  • Method for preparing hydrogen from methanol

Examples

Experimental program
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Embodiment Construction

[0022] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0023] see figure 1 , the experimental device of the present invention comprises a tank 5 with an ultrasonic generator 1, a coupling liquid 2 is contained in the tank 5, a bottle 6 of methanol solution is placed in the coupling liquid 2, the bottle 6 Sealed by the rubber stopper 4, and the rubber stopper 4 is also provided with a sampling port 3 communicated with the bottle body 6. In the experiment, the airtight bottle body 6 reserves a certain space. Under the same state as the temperature before the reaction, ignore The slight pressure change caused by gas generation in the reactor is detected by gas chromatography. In this way, when the volume of generated gas is measured by the drainage method, the large detection error caused by the relatively complicated experimental system and the small amount of hydrogen generated can be avoided. In addition, N is ...

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Abstract

The method of preparing hydrogen with methanol is to react with methanol solution of 50-75 % concentration in ultrasonic device of 28 kHz or 40 kHz and 100-1000 W power. The present invention is water vapor reforming reaction of methanol and ultrasonic wave is used to produce vibrating and cavitation effect on the methanol solution. The reaction has highest macro temperature lower than critical temperature for spontaneous reaction, and hydrogen may be produced at normal temperature or even lower temperature. The present invention has improved methanol reacting hydrogen preparing condition, lowered reaction temperature and relaxed requirement on catalyst.

Description

technical field [0001] The invention relates to a method for preparing hydrogen, in particular to a method for preparing hydrogen from methanol under ultrasonic conditions. Background technique [0002] Energy and environmental issues are the most important issues involved in the sustainable development of human society in the future. The application of fossil fuels will eventually lead to the depletion of fossil resources, and its use has also led to serious environmental pollution. As a new energy source, hydrogen has many excellent properties. [0003] Methanol has the advantages of easy availability of raw materials, high hydrogen content, convenient storage and transportation, and mild hydrogen production conditions, and is suitable for mobile hydrogen production. At present, the main methods for methanol decomposition to produce hydrogen are direct cracking, steam reforming and partial oxidation. [0004] Direct cracking (Decomposition) [0005] <chemistry num=...

Claims

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Application Information

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IPC IPC(8): C01B3/32
Inventor 白博峰左志涛
Owner XI AN JIAOTONG UNIV
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