Jgc Corporation

Ngk Insulators, Inc.

Keiichi Nishida

Hiroaki Hasegawa

Aiko Matsuyama

Yasushi Fujimura

Shinji Takahashi

Hiroshi Umino

Syuichi Oguro

Makoto Miyahara

Makiko Ichikawa

Takeshi Hagio

Katsuya Shimizu

Shuichi Oguro

Naoko Takahashi

Kenjii Yajima

Akiko Fukuta

Yasushi Fujimora

Kenji Yajima

Provided is a gas separation device configured to separate a non-hydrocarbon gas from a feed gas containing the non-hydrocarbon gas through use of a gas separation membrane, in which a decrease in operating rate can be suppressed, and economic efficiency is satisfactory. A first membrane module () and a second membrane module () are arranged in parallel to each other with respect to supply lines for a feed gas. Gas lines for regeneration () (()), which are branched from a permeate gas line () (()) of the membrane module () (()), and which are joined to a feed gas line () (()) configured to supply the feed gas to the membrane module () (()), are provided. Under a state in which the feed gas is supplied to the membrane module (), a permeate gas through the membrane module () is supplied, as a gas for regeneration, to the membrane module () through the gas lines for regeneration (). In this case, the membrane module () is brought into a non-operation state, and the membrane module () is regenerated.

Gas separation device

Provided are a non-hydrocarbon gas separation device and the like capable of increasing a discharge pressure of a non-hydrocarbon gas to a downstream side while preventing an increase in size of equipment. In the non-hydrocarbon gas separation device, a first separation module () and a second separation module () connected to each other in series are each configured to separate a non-hydrocarbon from a natural gas through use of a separation membrane (). The non-hydrocarbon gas having been separated from the natural gas is discharged to each of discharge lines () and (). At this time, a pressure of the first separation module () on a discharge line () side is higher than a pressure of the second separation module () on a discharge line () or () side.

Nonhydrocarbon gas separation device and nonhydrocarbon gas separation method

Provided is a non-hydrocarbon gas separation device or the like capable of separating a non-hydrocarbon gas from a natural gas containing a heavy hydrocarbon. The non-hydrocarbon gas separation device is configured to separate a non-hydrocarbon gas from a natural gas. The natural gas containing a heavy hydrocarbon, the heavy hydrocarbon having 5 or more carbon atoms, is supplied to a separation module (). The natural gas having been separated from the non-hydrocarbon gas is allowed to outflow from the separation module (), and the non-hydrocarbon gas having been separated from the natural gas is discharged from the separation module (). An inorganic membrane (), which is housed in the separation module (), and is made of an inorganic material is configured to allow the non-hydrocarbon gas contained in the natural gas to permeate therethrough to a discharge side, and to allow the natural gas having been separated from the non-hydrocarbon gas to flow to an outflow side. A heating unit () is configured to heat the natural gas to be supplied to the separation module () so that a temperature in the separation module () is kept at a temperature higher than a dew point temperature of the heavy hydrocarbon.

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Yokohama, Japan

Keiichi Nishida