Research Institute of Industrial Science & Technology

Korea Research Institute of Chemical Technology

Dong Jun Koh

Gyoo Tae Kim

Ki Hyuk Kang

Narae Kang

Joon Woo Kim

Chi Woong Ahn

Pill Won Seo

Sunyoung Park

Chul Ung Kim

Hwi Min Seo

Jae Cheon Koh

Yun Min Kim

Kiman Lee

Kyong Tae Kim

Youngchul Byun

Dong Nam Shin

Young Sam Sa

Joon Hyun Baik

A method for upgrading heavy oil by using a coke production byproduct comprises the steps of: producing a mixed solution by mixing a coke production byproduct and heavy oil; and hydrogenating the mixed solution under a hydrogenation catalyst, wherein the present disclosure is economical and effective by being able to reduce the amount of coke formation and significantly reduce the partial pressure of added hydrogen by using the coke production byproduct as a hydrogen donor.

Method for lightening heavy oil by using coke production byproduct

The present invention relates to a method for upgrading heavy oil by using byproducts of coke production, and particularly provides a method for upgrading heavy oil comprising the steps of: a) mixing heavy oil with byproducts of coke production to produce a mixed liquid: and b) subjecting the mixed liquid to pyrolysis, the method allowing reduction of the amount of coke generated and thus being economical and effective.

Method for upgrading heavy oil by pyrolysis using byproducts of coke production

Disclosed is a method for preparing a dialkyl carbonate, in which a dialkyl carbonate such as dimethyl carbonate is economically prepared in an environmentally-friendly manner at a higher yield while reducing generation of a by-product. The method for preparing the dialkyl carbonate includes reacting urea, an alkyl carbamate having 1 to 3 carbon atoms, or a mixture thereof with a monovalent alcohol having 1 to 3 carbon atoms in the presence of a room temperature ionic liquid and a catalyst including a salt of a transition metal or a rare earth metal.

Method for preparing dialkyl carbonate

There is provided an effective method for removing mercury comprising injecting NaClOinto an emission gas containing elemental mercury and NO; converting the elemental mercury to oxidized mercury by using oxidizing agents produced by the NaClOand the NO; and removing oxidized mercury from the emission gas.

Method of removing mercury from exhaust gas using chlorine compound

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Pohang-si, South Korea

Dong Jun Koh