Sk Innovation Co., Ltd.

Sk Geo Centric Co., Ltd.

Korea Research Institute of Chemical Technology

Hong Chan Kim

Yong Seung Kim

Seung Hoon Oh

Sun Woong Choi

Gyung Rok Kim

Dae Hyun Choo

Sang Hun Oh

Tae Jin Kim

Deuk Soo Park

Hyuck Lee

Jae Suk Koh

Seung Woo Lee

Ji Min Kim

Sung Won Kim

Sang Il Lee

Suk Joon Kim

Cheol Joong Kim

Sun Choi

Yong Ki Park

Won Choon Choi

Hee Young Kim

Do Woan Kim

Na Young Kang

Chul Wee Lee

Jong Hyung Lee

Ho Seong Lee

Eun Kyoung Kim

Ji Hye Park

Jae Hyun Koh

Kyung Jong Oh

Bu Sub Song

Wan Ju Jeong

Myoung Han Noh

Yoon Kyung Lee

Seong Jun Lee

Soo Kil Kang

In Hyoup Song

Min Gyoo Park

Sun Joo Kim

Yoon Jae Yim

Sam Ryong Park

Doh Yeon Park

Jung A Lee

Il Yong Jeong

Jae Eun Lee

Tae-Jin Kim

Sung Bum Park

Hee Du Lee

Min Su Ko

Byoung Kyu Kwak

Jang Hoon Ock

Myoung Han No

Young Ki Park

Manuel David Recasens Alvaro

Kang Seok Go

Hyun Chul Choi

Seok Bin Hong

Kyung Jin Ma

Juan Carlos Estevez Videira

In Su Lee

Hyuck Jae Lee

Won Bin Kim

In a method of producing an ethylene-carboxylic acid copolymer according to an embodiment of the present invention, a carboxylic acid monomer and a polar co-solvent are introduced separately into a mixing unit or stored together in a supply unit to form a mixture. The mixture and ethylene are injected into a reactor to be copolymerized. Reaction kinetic properties of the carboxylic acid monomer and the polar co-solvent are controlled to suppress a formation of by-products.

Method for producing ethylene-carboxylic acid copolymer

The present invention relates to a method for producing an ethylene-based copolymer, and more particularly, to a method for producing an ethylene-based copolymer capable of increasing process efficiency by preventing plugging and corrosion of a facility. The method for producing an ethylene-based copolymer includes a producing mode and a washing mode of which one is selectively performed. The producing mode includes: a) hyper-compressing primary compressed ethylene, and a mixture including a carboxylic acid-containing comonomer and a polar solvent to produce a compressed material; b) reacting the compressed material to produce a reaction product including an ethylene-based copolymer; and c) separating and recovering unreacted residues from the reaction product and introducing the unreacted residues into the mixture of step a). The washing mode includes: re-supplying the compressed material produced in step a) to step a) as a mixture, without performing step b).

Washing methods for ethylene-acrylic acid copolymer manufacturing process using solvent

This invention relates to a method of producing aromatic hydrocarbons and olefin from hydrocarbonaceous oils including large amounts of polycyclic aromatic compounds having two or more rings via partial hydrogenation in the presence of a hydrogenation catalyst and catalytic cracking in the presence of a catalytic cracking catalyst.

Method of producing aromatic hydrocarbons and olefin from hydrocarbonaceous oils comprising large amounts of polycyclic aromatic compounds

This invention relates to a hydrocracking catalyst for preparing valuable light aromatic hydrocarbons from polycyclic aromatic hydrocarbons derived from oil, which includes (i) beta-zeolite, (ii) pseudo-boehmite, and (iii) one or more metals selected from among metals of Groups VIII and VIB, and which further includes a cocatalyst component, thereby producing a maximum amount of BTX (Benzene, Toluene, Xylene) from LCO (Light Cycle Oil).

Hydrocracking catalyst for preparing valuable light aromatic hydrocarbons from polycyclic aromatic hydrocarbons

Disclosed is a method of recovering 1,3-butadiene from a C4 stream containing butane, isobutane, 2-butene, 1-butene, isobutene, butadiene and acetylene. The process of recovering highly pure 1,3-butadiene includes acetylene conversion for selectively converting acetylene through liquid-phase hydrogenation, so that the acetylene content is decreased to 70 wt ppm or less, and 1,3-butadiene extraction using an extractive distillation column, a pre-separator, a solvent stripping column, a solvent recovery column, and a purification column. Through the acetylene conversion, the concentration of vinylacetylene is decreased to 70 wt ppm or less, after which 1,3-butadiene is recovered using only one extractive distillation column, thereby considerably decreasing the degree of utility and the loss of streams in the course of extraction. The number of units necessary for the process is decreased, thus remarkably reducing the time during which impurities can accumulate in a processing unit.

Process for 1,3-butadiene separation from a crude C4 stream with acetylene converter

Disclosed are a molecular sieve catalyst and a preparation method thereof to produce light olefins from cracking naphtha catalytically in severe environments of high temperature and high moisture. In detail, the catalyst is prepared by spray-drying and calcining the mixed slurry, in which 0.01&#x2dc;5.0 wt % of MnOand 1&#x2dc;15 wt % of POare simultaneously imbedded in catalyst which consists of zeolite, clay and inorganic complex. According to the present invention, the method that manganese and phosphate are imbedded simultaneously in zeolite and inorganic complex is used to increases thermal-stability of obtained spherical catalyst, and increase olefin yield of cracking hydrocarbon such as naphtha by protecting acid-site of zeolite. To synthesize the required catalyst, the important procedures are mixing ratio and mixing sequence of Mn, P, zeolite, and inorganic complex.

Catalyst for catalytic cracking of hydrocarbon, which is used in production of light olefin and production method thereof

The present invention relates to a method for manufacturing aromatic products (benzene/toluene/xylene) and olefinic products from an aromatic-compound-containing oil fraction, whereby it is possible to substitute naphtha as a feedstock for aromatic production and so make stable supply and demand, and it is possible to substantially increase the yield of high-added-value olefinic and high-added-value aromatic components, by providing a method for manufacturing olefinic and aromatic products from light cycle oil comprising a hydrogen-processing reaction step, a catalytic cracking step, an separation step and a transalkylation step, and optionally also comprising a recirculation step.

Method for producing high-added-value aromatic products and olefinic products from an aromatic-compound-containing oil fraction

This invention relates to a method of producing aromatics and light paraffins from hydrocarbonaceous oils derived from oil, coal or wood, including partially saturating and hydrocracking the oils derived from oil in a hydrogenation and reaction area, separating them depending on the number of carbons, recirculating heavy oils having 11 or more carbons to the hydrogenation and reaction area, feeding oils suitable for producing BTX to an aromatic separation process and a transalkylation process to recover aromatics, and feeding hydrocarbonaceous components having 5 or fewer carbons to a light separation process, thus obtaining light paraffins.

Method for producing valuable aromatics and light paraffins from hydrocarbonaceous oils derived from oil, coal or wood

This invention relates to a method of producing aromatics and olefins from oils derived from coal or wood, including partially saturating and cracking the oils derived from coal or wood in a hydrogenation and reaction area, separating them depending on the number of carbons, recirculating heavy oils having 11 or more carbons to the hydrogenation and reaction area, feeding oils suitable for producing BTX to an aromatic separation process and a transalkylation process to recover aromatics, and feeding hydrocarbonaceous components having 5 or less carbons to a light separation process, thus obtaining olefins.

Method of producing valuable aromatics and olefins from hydrocarbonaceous oils derived from coal or wood

Disclosed is a catalytic cracking process for the production of light olefins from a hydrocarbon feedstock using fast fluidization, which is a preferred process for more efficiently increasing the production of light olefin hydrocarbons. According to this invention, a fast fluidization regime is applied to a fluidized bed catalytic cracking process of producing light olefins using zeolite, such that a volume fraction and distribution of the catalyst sufficient to induce the catalytic cracking reaction can be provided, thus effectively enhancing the production of light olefin hydrocarbons, in particular, ethylene and propylene, at high selectivity.

Catalytic cracking process using fast fluidization for the production of light olefins from hydrocarbon feedstock

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Jeju-si, South Korea

Hong Chan Kim