Abstract: A methane production system includes: a raw material gas supply part configured to store and supply a raw material gas; a catalyst supply part configured to store and supply a catalyst; a methanation reaction part connected to the raw material gas supply part and the catalyst supply part and configured to generate a reaction gas by performing a methanation reaction using the raw material gas and the catalyst supplied from the raw material gas supply part and the catalyst supply part; a temperature measurement part connected to the methanation reaction part and configured to measure a temperature of the methanation reaction part; a temperature maintaining part connected to the raw material gas supply part; and a raw material gas injection part connected to the raw material gas supply part to receive the raw material gas from the raw material gas supply part.

Abstract: Disclosed herein is a low gloss thermoplastic resin composition with a soft touch surface comprising (A) about 10 to about 80% by weight of a soft rubbery aromatic vinyl copolymer resin which comprises rubber particles with a graft ratio of about 40 to about 90% and an average particle diameter of about 6 to about 20 ?m as a dispersed phase; (B) about 4 to about 60% by weight of a rubber-modified aromatic vinyl copolymer resin; and (C) about 5 to about 80% by weight of an aromatic vinyl-vinyl cyanide copolymer resin. The molded article molded from the thermoplastic resin composition can have a soft touch surface as well as excellent low gloss and impact strength.

Abstract: The present invention provides a top-feeding double-swirl type gasifier: a feed line through which pulverized coal is supplied by nitrogen; a distributor for dividing the pulverized coal supplied; a plurality of burner nozzles for supplying the pulverized coal, divided in the distributor, and an oxidizer; a pressure reactor in which the pulverized coal and the oxidizer react with each other to produce a flow of synthesis gas; and a swirl generator for imparting a swirling force to the oxidizer which is fed into the pressure reactor, the gasifier further comprising a slag cooling and storing container placed beneath the pressure reactor. Each of the burner nozzles consists of a triple tube having a circular cross section. The pulverized coal and carrier gas are supplied to the most central region of the burner nozzle, and an oxidizer is supplied to an annular region 34 surrounding the central region.

Abstract: A method for preparing synthetic natural gas (SNG) is provided. More particularly, a method for preparing synthetic natural gas is provided, in which synthetic gas generated after fuel gasification and dust collection is subjected to a first methane synthesis reaction; only part of the gas is subjected to a water gas shift reaction and the remaining gas bypasses; the mixed gas prepared by mixing the gas passed through the water gas shift reaction and the gas bypassing the water gas shift reaction is subjected to a second methane synthesis reaction; and thereby heat of the methane synthesis reaction can be controlled and catalyst life can be lengthened.

Abstract: The present invention provides a top-feeding double-swirl type gasifier: a feed line through which pulverized coal is supplied by nitrogen; a distributor for dividing the pulverized coal supplied; a plurality of burner nozzles for supplying the pulverized coal, divided in the distributor, and an oxidizer; a pressure reactor in which the pulverized coal and the oxidizer react with each other to produce a flow of synthesis gas; and a swirl generator for imparting a swirling force to the oxidizer which is fed into the pressure reactor, the gasifier further comprising a slag cooling and storing container placed beneath the pressure reactor. Each of the burner nozzles consists of a triple tube having a circular cross section. The pulverized coal and carrier gas are supplied to the most central region of the burner nozzle, and an oxidizer is supplied to an annular region 34 surrounding the central region.

Abstract: Disclosed herein is a low gloss thermoplastic resin composition with a soft touch surface comprising (A) about 10 to about 80% by weight of a soft rubbery aromatic vinyl copolymer resin which comprises rubber particles with a graft ratio of about 40 to about 90% and an average particle diameter of about 6 to about 20 ?m as a dispersed phase; (B) about 4 to about 60% by weight of a rubber-modified aromatic vinyl copolymer resin; and (C) about 5 to about 80% by weight of an aromatic vinyl-vinyl cyanide copolymer resin. The molded article molded from the thermoplastic resin composition can have a soft touch surface as well as excellent low gloss and impact strength.

Abstract: A method of gasifying large molecular weight organic materials (carbonaceous compounds) such as coal, shredded waste tire or waste oil into gaseous fuel, carbon monoxide and hydrogen, and an apparatus therefore are provided. The method comprises the steps of supplying initial fuel gas and oxygen into a gasification reactor to produce water and carbon dioxide, supplying the organic materials into the reactor and reacting them with the water and carbon dioxide to produce carbon monoxide and hydrogen gas, discharging the carbon monoxide and hydrogen gas from the reactor, recycling a part of the carbon monoxide and hydrogen gas discharged from the reactor into the reactor, and reacting the carbon monoxide and hydrogen gas supplied into the reactor with oxygen to produce water and carbon dioxide. The method facilitates the control of temperature in the gasification reactor as well as produces fuel gas of high quality by increasing the concentration of hydrogen.