Korea Institute of Energy Research

Sk Energy Co., Ltd.

Other

Soon-Haeng Cho

Jong-Nam Kim

Jong-Ho Park

Sang Sup Han

Hee Tae Beum

Chang Hyun Ko

Min-Su Ko

Jongkee Park

Seong-Jun Lee

Sang-Sup Han

Kuck-Tack Chue

Hee-Tae Beum

Jong-Kee Park

Venkateswarlu Choudary Nettem

Tae-Hwan Kim

Hyung Chul Yoon

Tae Sung Jung

Seng-Go Lee

Youn-Jong You

Kwon-Il Kim

Jung-Il Yang

Sung-Chul Cho

Hari Chand Bajaj

Heon-Do Jeong

Kweon-Ill Kim

Kumar Brakash

Young Tae Guahk

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

A hybrid process comprising an adsorption process and a distillation process for the separation of butene-1 from a C4 hydrocarbon mixture gas including butene-1, trans-2-butene, cis-2-butene, normal butane, isobutane, etc. is provided. The hybrid process comprises introducing a gaseous C4 mixture into the adsorption tower loaded with adsorbents which adsorb olefins selectively to discharge C4 paraffins to the outlet of the tower, desorbing C4 olefins selectively adsorbed in the adsortion tower to produce high purity C4 olefins mixture gas in which isobutane and normal butane was removed, and separating the high C4 olefins mixture gas (a mixture of butene-1, trans-2-butene, cis-2-butene, and a trace amount of C4 paraffins) via distinction to obtain high purity butene-1 including a trace amount of isobutane in the top of the distillation tower and obtain a mixture gas including trans-2-butene, cis-2-butene and a trace amount of normal butane in the bottom of the tower.

Production of high purity butene-1 from C4 olefins/paraffins mixed gas

A method and apparatus for the separation of C4 olefins (butene-1, trans-2-butene, cis-2-butene, etc.) and C4 paraffins (normal butane, isobutane, etc) from a C4 hydrocarbon mixed gas including butene-1, trans-2-butene, cis-2-butene, normal butane, isobutane, etc. is provided. The apparatus includes several adsorption towers loaded with an adsorbent which selectively adsorb olefins and two distillation towers for the separation of the mixture gases of olefins/desorbents and paraffins/desorbents respectively. The basic operating process of the adsorption tower comprises an adsorption step of selectively adsorbing C4 olefin from the feeding mixture, a C4 olefin rinse step of removing a small amount of C4 paraffins adsorbed together with C4 olefins, and a desorption step of desorbing C4 olefins by using a desorbent, and further comprises pressure equalization step, concurrent depressurization step, and accumulation pressure step to increase the yield and concentration of olefins depending on the operation pressure of the adsorption tower.

Separation of olefins from olefins/paraffins mixed gas

The present invention relates to a method for the separation of Colefins and Cparaffins from a Chydrocarbon mixed gas including butene-1, trans-2- butene, cis-2-butene, normal butane, isobutane, etc. The method of the present invention produces Colefins with high purity by introducing a gaseous Cmixture into the adsorption tower loaded with adsorbent selectively adsorbing olefins to adsorb Colefins and to discharge Cparaffins to the outlet of the tower, desorbing Colefins adsorbed on the adsorption tower with a desorbent Chydrocarbon, Chydrocarbon, etc.), and then separating the Colefin and the desorbent by a distillation process.

The present invention relates to a hybrid process comprising an adsorption process and a distillation process for the separation of butene-1 from a C4 hydrocarbon mixture gas including butene-1, trans-2-butene, cis-2-butene, normal butane, isobutane, etc. The above hybrid process comprises introducing a gaseous C4 mixture into the adsorption tower loaded with adsorbents which adsorb olefins selectively to discharge C4 paraffins to the outlet of the tower, desorbing C4 olefins selectively adsorbed in the adsorption tower to produce high purity C4 olefins mixture gas in which isobutane and normal butane was removed, and separating the high C4 olefins mixture gas (a mixture of butene-1, trans-2-butene, cis-2-butene, and a trace amount of C4 paraffins) via distillation to obtain high purity butene-1 including a trace amount of isobutane in the top of the distillation tower and obtain a mixture gas including trans-2-butene, cis-2-butene and a trace amount of normal butane in the bottom of the tower.

Adsorbents useful in the selective adsorption of unsaturated hydrocarbons, the manufacture of the adsorbents, and processes for the separation of unsaturated hydrocarbons using the adsorbents.

Adsorbents and methods for the separation of ethylene and propylene and/or unsaturated hydrocarbons from mixed gases

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

A high purity isobutane adsorption separation and purification apparatus is provided including a pressure regulator which regulates the pressure of an isobutane-containing gas; the at least one adsorption bed packed with zeolite 5A and carbon molecular sieve arranged downstream of and operatively associated with the pressure regulator; a flow control valve disposed between the pressure regulator and the at least one adsorption bed; a surge tank operatively associated with and for receiving a purified isobutane product from the at least one adsorption bed; a vacuum pump operatively associated with and for removal of impurities from the at least one adsorption bed; and valves disposed between the pressure regulator and the at least one adsorption bed, between the at least one adsorption bed and the surge tank, and between the at least one adsorption bed and the vacuum pump. An adsorptive separation and isobutane purification process is also provided which may be used with the apparatus of the invention.

Adsorption separation and purification apparatus and process for high

A method for recovering argon and hydrogen simultaneously from a feed mixture comprising argon, hydrogen, methane, nitrogen, ammonia, and moisture by passing a two stage adsorption separation (PSA). The feed gas including 4-6% hydrogen is sent to the first stage PSA to obtain a product hydrogen during the first period of adsorption step, and to obtain an intermediate product of argon and hydrogen mixture during the next period of adsorption step. The adsorbed gases are evacuated and sent to fuel gas. The intermediate product argon and hydrogen mixture is sent to the second stage adsorption bed. The effluent of adsorption step is recovered as another product hydrogen. After the adsorption step, the second stage adsorber is undergone concurrent blowdown, pressure equalization, argon recovery, argon purge, desorption production of argon, pressure equalization, pressurization with product hydrogen. Through such cyclic operation of two-stage PSA, high purity argon and hydrogen are recovered simultaneously.

Method for adsorbing and separating argon and hydrogen gases in high

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Daejeon, South Korea

Soon-Haeng Cho