Hyundai Heavy Industries Co., Ltd.

Korea Research Institute of Chemical Technology

E & D Company, LLC

Hyundai Bngsteel Co., Ltd.

Seok-Lyong Song

Ki Won Jun

Jong Wook Bae

Keh-Sik Min

Hee-Sung Yang

Tae-Min Kim

Yun Jo Lee

Jong Hyeok Oh

Suk-Hwan Kang

Seung-Chan Baek

Kyoung-Jae Kim

Joon-Ho Ko

Chan-Do Park

Hyun-Chul Choi

Ho-Jeong Chae

In-Sik Nam

Tae-Young Oh

Sam-Heon Jeong

Jae-Woo Lee

Jun-ho Ko

Sung-Young Lee

Ju-Yong Jung

Young-Jin Cho

Seung-Han Han

Jai-Hyun Park

Ki-Ho Moon

Jong-Pil Ha

The present invention relates to a metal filter for purifying the exhaust gas from a ship, and a preparation method thereof. The purpose of the present invention is to provide: a metal filter for purifying the exhaust gas from a ship, capable of reducing nitrogen oxide by 85% or more at 250-300&#xb0; C.; and a preparation method thereof. The metal filter for removing nitrogen oxide contained in the exhaust gas from a ship of the present invention comprises an integrated catalyst, wherein a metal substrate comprising irregularities is coated with a low temperature active catalyst in which vanadium (V), tungsten (W) and alumina sol are supported in a Ti-pillared clay (Ti-PILC) powdered support.

Metal filter for purifying exhaust gas from ship, and preparation method thereof

Disclosed is a method for methanol synthesis using synthesis gas obtained from reforming of natural gas with carbon dioxide. First, synthesis gas is obtained from steam carbon dioxide reforming of methane, in which steam reforming of natural gas is carried out simultaneously with carbon dioxide reforming of methane, by using a catalyst (Ni/Ce/MgAlO, or Ni/Ce&#x2014;Zr/MgAlO) and processing condition capable of maintaining a predetermined ratio of carbon monoxide, carbon dioxide, and hydrogen [H/(2CO+3CO)=0.85-1.15]. Next, methanol synthesis is carried out by using the obtained synthesis gas and a catalyst system suitable for methanol synthesis with minimum byproduct formation (a catalyst system including a Cu&#x2014;Zn&#x2014;Al oxide containing CuO, ZnO, and AlOat a predetermined ratio in combination with a cerium-zirconium oxide obtained by a sol-gel process). In addition, unreacted synthesis gas remaining after the operation of methanol synthesis is recycled efficiently to improve the carbon availability (methane and COavailability) and energy efficiency in the overall process.

Method for methanol synthesis using synthesis gas generated by combined reforming of natural gas with carbon dioxide

Disclosed are a catalyst for synthesis of methanol from synthesis gas and a method for preparing the same. The catalyst includes a Cu&#x2014;Zn&#x2014;Al oxide containing CuO, ZnO and AlOin a predetermined ratio or Cu&#x2014;Zn&#x2014;Al&#x2014;Zr oxide containing CuO, ZnO, AlOand ZrOin a predetermined ratio, in combination with a cerium-zirconium oxide obtained by a sol-gel process. As compared to the existing Cu&#x2014;Zn&#x2014;Al catalysts for synthesizing methanol, the catalyst disclosed herein inhibits formation of byproducts and improves yield of methanol. Therefore, it is possible to improve methanol purification efficiency and carbon conversion efficiency.

Catalyst for synthesizing methanol from synthesis gas and preparation method thereof

Disclosed are a catalyst for preparing synthesis gas from natural gas and carbon dioxide, and a method for preparing the same. More particularly, a combined reforming process is performed as an economical way of using carbon dioxide, wherein steam reforming of natural gas is carried out simultaneously with carbon dioxide reforming of methane in such a manner that a predetermined ratio of carbon monoxide/carbon dioxide/hydrogen (H/(2CO+3CO)=0.85-1.15) is maintained. In this manner, the catalyst is used to prepare synthesis gas suitable for methanol synthesis and Fischer-Tropsch synthesis. Disclosed also is a method for preparing synthesis gas on a specific catalyst consisting of Ni/Ce/MgAlOx or Ni/Ce-Zr/MgAlOx. The catalyst is inhibited from deactivation caused by generation of cokes during the reaction as well as deactivation caused by reoxidation of nickel with water added during the reaction. Therefore, the catalyst shows excellent activity as compared to other catalysts for use in combined reforming.

Catalyst for preparing synthesis gas from natural gas and carbon dioxide, and preparation method thereof

A catalyst for effectively removing NOx by using NH as a reducing agent is disclosed. Particularly, a vanadia impregnated onto Ti-PILC (titania-pillared interlayer clay) is disclosed, which is prepared by the generally known technology. More specifically, a V O /Ti-PILC catalyst is disclosed, in which NOx contained in the flue gas from an electric power plant and the like (an excessive amount of SO being present in the flue gas stream) is reacted with NH (which is injected as a reducing agent) over a vanadia impregnated onto a Ti-PILC, so that they can be converted into harmless nitrogen and water. The V O /Ti-PILC catalyst is employed for reducing NOx contained in the exhaust gas stream as well as the large amounts of SO into nitrogen and water. The catalyst is prepared by pillaring a titania to a clay by a pillaring method. The V O /Ti-PILC catalyst prepared in the present invention reveals a superior NO removal activity under dry and wet conditions compared with the commercial V O &mdash;WO /TiO catalyst.

Vanadia catalyst impregnated on titania-pillared clay for the removal of nitrogen oxide

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Ulsan, South Korea

Seok-Lyong Song