摘要:
A catalyst-testing apparatus includes a heater, a U-shaped reactor, a gas flow controller, a liquid flow controller, two pressure gauges, a separator and a chromatograph. In use, under control of the gas flow controller, natural gas and air are directed to the U-shaped reactor. Under control of the liquid flow controller, pure water is directed to the U-shaped reactor. The pure water travels down the wall of the U-shaped reactor. The pure water is heated and turned into steam in a front section of the U-shaped reactor. Together with the natural gas and the air, the steam is directed to a catalyst zone in the U-shaped reactor for reaction. With the chromatograph, volumes and compositions of resultant gases are analyzed. Thus, the stability of the performance of the catalyst is tested, and the performance of the catalyst for producing hydrogen by is revealed.
摘要:
A catalyst-testing apparatus includes a heater, a U-shaped reactor, a gas flow controller, a liquid flow controller, two pressure gauges, a separator and a chromatograph. In use, under control of the gas flow controller, natural gas and air are directed to the U-shaped reactor. Under control of the liquid flow controller, pure water is directed to the U-shaped reactor. The pure water travels down the wall of the U-shaped reactor. The pure water is heated and turned into steam in a front section of the U-shaped reactor. Together with the natural gas and the air, the steam is directed to a catalyst zone in the U-shaped reactor for reaction. With the chromatograph, volumes and compositions of resultant gases are analyzed. Thus, the stability of the performance of the catalyst is tested, and the performance of the catalyst for producing hydrogen by is revealed.
摘要:
A Cu—Zn—Al catalyst is fabricated for producing methanol and dimethyl ether (DME). A sol-gel method is used to obtain an organic phase with gel clusters rapidly transferred in. The catalyst thus fabricated can be adjusted in crystal grain size, crystal type, surface structure and active sites distribution. Thus, performance of the catalyst is improved.
摘要:
The present disclosure provides a gas reaction device. Reactions are happened on a fixed bed and/or a slurry bed in four reaction states. Thus, by using the four reaction states, reactions are thoroughly completed with the same catalyst. Or, different reactions are completed with different catalysts for different purposes.
摘要:
An apparatus is disclosed for testing a catalysis electrode of a fuel cell. The apparatus includes a driving module, a loading module, a containing module and an analyzing unit. The containing module includes a hollow threaded bolt, a sleeve and a contact plate. The hollow threaded bolt is operatively connected to driving module. The sleeve receives and is operatively connected to the hollow threaded bolt. The contact plate is located below the hollow threaded bolt in the sleeve. The analyzing unit includes a working electrode, an auxiliary electrode and a reference electrode. The working electrode is connected to the contact plate. The auxiliary electrode includes an end located below the containing module in the loading module. The reference electrode is connected to the loading module.
摘要:
A fuel reforming catalyst is fabricated. The catalyst is used in solid oxide fuel cell. By using the catalyst, the hydrogen generation is enhanced with a great reforming ratio. In addition, the catalyst is coking-resistant and will not be broken into powder after a long time of use.
摘要:
The present disclosure uses a nano-SiO2 powder as a supporter with H2PtCl6 added as an electro-catalyst precursor. A chemical reduction is processed at a high temperature to adhere nano-sized Pt ions on the nano-SiO2 powder through reduction. Thus, a nano-Pt catalyst using nano-SiO2 as supporter is manufactured for fuel cells, organic compound reactions and the textile industry.
摘要:
An apparatus is disclosed for testing a catalysis electrode of a fuel cell. The apparatus includes a driving module, a loading module, a containing module and an analyzing unit. The containing module includes a hollow threaded bolt, a sleeve and a contact plate. The hollow threaded bolt is operatively connected to driving module. The sleeve receives and is operatively connected to the hollow threaded bolt. The contact plate is located below the hollow threaded bolt in the sleeve. The analyzing unit includes a working electrode, an auxiliary electrode and a reference electrode. The working electrode is connected to the contact plate. The auxiliary electrode includes an end located below the containing module in the loading module. The reference electrode is connected to the loading module.
摘要:
In the present invention, platinum and alloying metal precursor ions are reduced to platinum alloy particles using specifically prepared reducing agents, under controlled reaction temperature and pH conditions, with uniform dispersion and high uniformity in nano-scale sizes adhered onto carbon nanotubes; besides, the compositions of prepared Pt alloy electrocatalysts can be put under control as desired.
摘要:
A nuclear plant is provided with a pipe-passivating alkali-injecting device including an alkali-injecting tank, an actuator, a counter-balance valve, a pressure gauge, exhaust valves and switching valves. The actuator is connected to the alkali-injecting tank via a first pipe. The counter-balance valve is connected to the actuator via a second pipe and connected to the alkali-injecting tank via a third pipe. The pressure gauge is provided between the actuator and the counter-balance valve and connected to the second pipe. The exhaust valves are connected to the first and second pipes, and so are the switching valves. The alkali-injecting tank, the actuator and the counter-balance valve are used together to expel gases from the pipes while injecting alkali, thus effectively avoiding feedback of liquid in the nuclear plant, transmitting pure alkali in the pipes, and reducing damage to the pipes.