Method for jointly removing hydrogen sulfide and sulfur dioxide in mixed gas and recovering sulfur

Method for jointly removing hydrogen sulfide and sulfur dioxide in mixed gas and recovering sulfur

The invention discloses a method for jointly removing hydrogen sulfide and sulfur dioxide in mixed gas and recovering sulfur. The method comprises the following steps: firstly, removing SO2 and part of H2S in a mixed gas by adopting a liquid-phase Claus reaction unit (1), then removing the residual...

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Hauptverfasser: HU LU, WU HONGGUAN, ZENG FANWEN, SHAO HU, XU XUNDA, LONG CHUANGUANG, XIA PENG, YU GUOXIAN, PAN WEI
Format: Patent
Sprache:chi ; eng
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CHEMISTRY
COMPOUNDS THEREOF
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
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creator HU LU
WU HONGGUAN
ZENG FANWEN
SHAO HU
XU XUNDA
LONG CHUANGUANG
XIA PENG
YU GUOXIAN
PAN WEI
description The invention discloses a method for jointly removing hydrogen sulfide and sulfur dioxide in mixed gas and recovering sulfur. The method comprises the following steps: firstly, removing SO2 and part of H2S in a mixed gas by adopting a liquid-phase Claus reaction unit (1), then removing the residual H2S by using a complex iron absorption unit (2), enabling a desulfurization pregnant solution generated by the liquid-phase Claus reaction to enter a complex iron pregnant solution tank (4), further reacting with a complex iron desulfurization pregnant solution, enabling the desulfurization pregnant solution and the complex iron desulfurization pregnant solution to enter a complex iron regeneration unit (3), and regenerating the complex iron. The regenerated desulfurization barren liquor returns to the complex iron absorption unit (1), and sulfur in the desulfurization barren liquor is recovered in the sulfur recovery unit (5) after settling or floating. The method adopted by the invention is simple in process, SO2
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subjects CHEMISTRY
COMPOUNDS THEREOF
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
title Method for jointly removing hydrogen sulfide and sulfur dioxide in mixed gas and recovering sulfur
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