SULFUR DIOXIDE GAS ADSORBENT

PURPOSE:To absorb sulfur dioxide from gas containing sulfur dioxide, by contacting the gas containing sulfur dioxide with diglycolic acid and/or an aqueous diglycolate solution. CONSTITUTION:Gas containing sulfur dioxide is contacted with diglycolic acid and/or an aqueous diglycolate solution to abs...

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Bibliographische Detailangaben
Hauptverfasser:	GOSHIMA YUUJIROU, TAMURA AKIRA, SASAKI TETSUO
Format:	Patent
Sprache:	eng
Schlagworte:	PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION TRANSPORTING
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Beschreibung
Zusammenfassung:	PURPOSE:To absorb sulfur dioxide from gas containing sulfur dioxide, by contacting the gas containing sulfur dioxide with diglycolic acid and/or an aqueous diglycolate solution. CONSTITUTION:Gas containing sulfur dioxide is contacted with diglycolic acid and/or an aqueous diglycolate solution to absorb sulfur dioxide. Diglycolic acid and/or the aqueous diglycolate solution shows action as a buffer agent at the time of the absorption of sulfur dioxide. The absorbent containing sulfur dioxide is sent to a regeneration process and contacted with hydrogen sulfide gas to be regenerated. At this time, sulfur dioxide being adsorbed is reacted with hydrogen sulfide to generate element sulfur rapidly and irreversibly.