Disclosed are a catalyst for preparing a synthetic gas through dry reforming, a method preparing the catalyst, and a method using the catalyst for preparing the synthetic gas. The catalyst may include: a support including regularly distributed mesopores; metal nanoparticles supported on the support; and a metal oxide coating layer coated on a surface of the support.

There is provided a catalyst having an average electronegativity of 2.1 or more and 2.8 or less.

There is provided a catalyst having an average electronegativity of 2.1 or more and 2.8 or less.

The present invention relates to a particulate filter, in particular a particulate filter for use in an emission treatment system of an internal combustion engine. The particulate filter provides an advantageous combination of low back pressure and high fresh filtration efficiency.

The present invention provides an impregnated catalyst composition for production of carbon monoxide comprising: 30 wt %-50 wt % metal oxide and 50 wt %-70 wt % support material. Another aspect of the present invention is to provide a method of preparation of an impregnated catalyst for carbon monoxide production (10) and a method for producing carbon monoxide (20) according to the impregnated catalyst of the present invention. The present invention is able to reduce the reaction temperature by 1 fold and also able to reduce the usage of energy but maintain its good production quality. Besides, selectivity of the present invention is high, hence able to produce high purity of carbon monoxide.

The present invention provides an impregnated catalyst composition for production of carbon monoxide comprising: 30 wt %-50 wt % metal oxide and 50 wt %-70 wt % support material. Another aspect of the present invention is to provide a method of preparation of an impregnated catalyst for carbon monoxide production (10) and a method for producing carbon monoxide (20) according to the impregnated catalyst of the present invention. The present invention is able to reduce the reaction temperature by 1 fold and also able to reduce the usage of energy but maintain its good production quality. Besides, selectivity of the present invention is high, hence able to produce high purity of carbon monoxide.

A catalyst molded body, a production method thereof and a method for preparing cyclic ketone using the same, including: (a) producing a mixed powder including a catalyst powder and a binder; (b) producing a slurry by mixing an aqueous alkali hydroxide solution with the mixed powder; and obtaining a catalyst molded body by molding and heat-treating the slurry.

A catalyst molded body, a production method thereof and a method for preparing cyclic ketone using the same, including: (a) producing a mixed powder including a catalyst powder and a binder; (b) producing a slurry by mixing an aqueous alkali hydroxide solution with the mixed powder; and obtaining a catalyst molded body by molding and heat-treating the slurry.

The present invention relates to a process for conveniently preparing a supported cobalt-containing Fischer-Tropsch synthesis catalyst having improved activity and selectivity for C.sub.5+ hydrocarbons. In one aspect, the present invention provides a process for preparing a supported cobalt-containing Fischer-Tropsch synthesis catalyst, said process comprising the steps of: (a) impregnating a support material with: i) a cobalt-containing compound and ii) acetic acid, or a manganese salt of acetic acid, in a single impregnation step to form an impregnated support material; and (b) drying and calcining the impregnated support material; wherein the support material impregnated in step (a) has not previously been modified with a source of metal other than cobalt; and wherein when the cobalt-containing compound is cobalt hydroxide, a manganese salt of acetic acid is not used in step (a) of the process.

Methods of producing an isomerization catalyst include preparing a catalyst precursor solution, hydrothermally treating the catalyst precursor solution to produce a magnesium oxide precipitant, and calcining the magnesium oxide precipitant to produce the isomerization catalyst. The catalyst precursor solution includes at least a magnesium precursor, a hydrolyzing agent, and polyethylene glycol. Methods of producing propene from a butene-containing feedstock with the isomerization catalyst and a metathesis catalyst are also disclosed.