ANALYSIS DEVICE AND ASSOCIATED METHOD FOR OPERATING SIMULATED MOVING BED XYLENE SEPARATION UNIT USING RAMAN SPECTROMETER
PROBLEM TO BE SOLVED: To provide a xylene separation unit, using two adsorbers A and B connected in series, specifically the xylene separation unit using a circulation stream connecting the bottom of adsorber B to the top of adsorber A and a circulation stream connecting the bottom of adsorber A to...
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Format | Patent |
Language | English Japanese |
Published |
05.01.2015
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Subjects | |
Online Access | Get full text |
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Summary: | PROBLEM TO BE SOLVED: To provide a xylene separation unit, using two adsorbers A and B connected in series, specifically the xylene separation unit using a circulation stream connecting the bottom of adsorber B to the top of adsorber A and a circulation stream connecting the bottom of adsorber A to the top of adsorber B.SOLUTION: A simulated moving bed xylene separation unit comprises a device for measuring concentration by analyzing a Raman spectrum relating to sampling points, and the device is constituted by two identical and independent routes, called analysis route 1 and analysis route 2, each route having two branches, one called a main branch operating for a majority of the time, and the other called a subsidiary branch operating for a minority of the time.
【課題】本発明は、直列に接続された2つの吸着剤AおよびBを使用する、すなわち、吸着剤Aの底から始まり、吸着剤Bの頂部に送られる循環流を用いる、また吸着剤Bの底から始まり、吸着剤Aの頂部に送られる循環流を用いるキシレン分離ユニットを提供する。【解決手段】ユニットは、サンプリング点に関連するラマンスペクトルを分析することによって濃度を測定するための装置を含み、前記装置は、分析経路1および分析経路2と呼ばれる2つの同一な、独立した経路によって構成され、各経路は、2つの枝を有し、主枝と呼ばれる一方は、時間の大部分の間で作動し、補助枝と呼ばれるもう一方は、時間のうち少ない部分で作動する。【選択図】 図1 |
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Bibliography: | Application Number: JP20140121026 |