Korea Institute of Energy Research

Jong-Kee Park

Chang-keun Yi

Soon-Haeng Cho

Jong-Ho Park

Sang-Sup Han

Hee-Tae Beum

Jong-Nam Kim

Tae-Hwan Kim

Taesung Jung

Dong Woo Cho

Hyung Chul Yoon

Tae Sung Jung

Young Tae Guahk

Kweon-Ill Kim

Heon-Do Jeong

Hari Chand Bajaj

Sung-Chul Cho

Kuck-tack Chue

The present invention provides an oxygen selective adsorbent containing oxides of BaSrMg(CO)or BaSrCOparticles, increasing transition oxygen partial pressure, and representing high thermal stability and excellent oxygen sorption cavity, by adding another metal such as Sr to Ba which is active element for oxygen adsorption, so as to be capable of desorbing oxygen under lower vacuum even at the same operating temperature than the existing oxygen selective adsorbent; and a preparation method thereof.

Oxygen selective adsorbent for easy desorption and preparation method thereof

Provided are a continuous oxygen adsorption and desorption device and an continuous oxygen adsorption and desorption method using the device, and more particularly, an continuous oxygen adsorption and desorption device for producing high-purity oxygen products by using a plurality of adsorption and desorption towers filled with an oxygen-selecting adsorption and desorption agent selected from BaMg(CO)particles or particles in which either MgCOor Mg(OH)has been attached to the outside of BaMg(CO), and also a continuous oxygen adsorption and desorption method using the device.

Continuous oxygen production method and continuous oxygen adsorption and desorption device using oxygen adsorbing agent

Disclosed is a process for effecting liquid-phase hydrogenation of MAN to GBL in high conversion and high selectivity. The present invention provides an improved process of catalytic hydrogenation for converting MAN or SA to GBL in the liquid phase in the presence of a noble metal (palladium-molybdenum-nickel) catalyst supported on silica having a large surface area. The catalytic hydrogenation is conducted at a temperature of 150 to 250&deg; C. and under a pressure of 50 to 150 kg/cm .

Preparation of gamma-butyrolactone by catalytic hydrogenation of maleic anhydride

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Daejeon, South Korea

Jong-Kee Park