Recovery and purification method of hydrogen in exhaust gas of glyphosate acid production

The invention provides a process for reclaiming and purifying hydrogen from exhaust gas of glyphosate acid comprising the following steps, (1) subjecting the exhaust-gas to a first washing through a water washing tower, (2) acid rinsing through acid liquor absorption column, (3) rinsing for the seco...

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Bibliographische Detailangaben
Hauptverfasser:	LIU XIAOHUA, WANG ZHONGSHI, ZHENG DUANYONG, WANG WEN, ZHOU LIANG, XU GUOMING, QIU HUI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM CHEMISTRY COMPOUNDS THEREOF INORGANIC CHEMISTRY METALLURGY NON-METALLIC ELEMENTS ORGANIC CHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION TRANSPORTING
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Beschreibung
Zusammenfassung:	The invention provides a process for reclaiming and purifying hydrogen from exhaust gas of glyphosate acid comprising the following steps, (1) subjecting the exhaust-gas to a first washing through a water washing tower, (2) acid rinsing through acid liquor absorption column, (3) rinsing for the second time through water washing column, (4) deoxidizing through reaction tower with built-in palladium catalyst, (5) drying through a drying column with drying agent, (6) purifying the dried gas with a PSA pressure swing adsorption apparatus, thus hydrogen with content over 99.8% can be obtained.