Title:
炭化水素、含酸素化合物の液相リフォーミング方法及び装置
Document Type and Number:
Japanese Patent JP4068972
Kind Code:
B2
Abstract:
There has been conventionally known a method for producing hydrogen and oxygen through reactions of hydrocarbon and vapor (steam reforming method). This steam reforming method has been so far practiced at a high temperature of 600 DEG C to 850 DEG C and high pressure of 5 to 100 atmospheres by using nickel catalyst including alumina as a carrier. However, it is disadvantageously necessary for the aforenoted prior art method for carrying out the reaction at the high temperature and high pressure to use a sturdy reaction apparatus which can endure the high temperature and high pressure. Furthermore, implementation of the high temperature and high pressure required for the prior art method inevitably turns out to be expensive. Besides, the prior art method is relatively low in the rate of selecting carbon monoxide (e.g. percentage of components, which turns to carbon atom in carbon monoxide, in the carbon atom forming the carbon monoxide as raw materials), and causes various sorts of secondary reactions, consequently to possibly block a reaction tube due to by-product materials resultantly produced or deteriorate the catalyst. In the light of the foregoing, the present invention has an object to provide a novel liquid-phase reforming method and apparatus for hydrocarbon and oxygen-containing compound, which can be practiced at a temperature lower than that at which the conventional method is practiced and at normal pressures without using catalyst in high rate of selecting carbon monoxide, has no need of separating products from the unreacted substances, and does not give rise to any by-product. To attain the object described above according to the present invention, there is provided a reforming method characterized by reacting hydrocarbon or oxygen-containing compound and water by pulse discharge in the liquid including the hydrocarbon or oxygen-containing compound, thus to produce hydrogen and carbon monoxide. According to this method of the invention, the objective hydrogen and carbon monoxide can be obtained by pulse discharge in the liquid. Besides, the intended reaction can be carried out at normal temperatures and pressures. Since the product can be obtained in the form of gas, there is no necessity for separating the product resultantly obtained from the unreacted substances. Furthermore, the by-product such as acetylene is dissolved and absorbed in the liquid and reacted over again, consequently to be converted into synthesis gas.
Inventors:
Yasushi Sekine
Masato Watanabe
Masato Watanabe
Application Number:
JP2002589391A
Publication Date:
March 26, 2008
Filing Date:
May 13, 2002
Export Citation:
Assignee:
Yasushi Sekine
International Classes:
C01B3/34; B01J7/02; B01J14/00; B01J19/08; B01J19/12; C01B3/32; C01B3/38; C01B3/48
Domestic Patent References:
| JP1098132U | ||||
| JP53044915B2 | ||||
| JP42013441B1 | ||||
| JP162319B1 |
Other References:
Low temperature reforming of methane to synthesis gas with direct current pulse discharge method,Chemical Communication,2001年 2月13日,5,p415-416
Attorney, Agent or Firm:
Yoshiharu Yoshida