System and method for reducing sulfur dioxide emission concentration of sulfur recovery device and desulfurization agent
The invention belongs to the technical field of sulfur recovery and particularly relates to a system and a method for reducing sulfur dioxide emission concentration of a sulfur recovery device and a desulfurization agent. The desulfurization agent comprises aminopolycarboxylic acid chelate iron, an...
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| creator | ZHU MAOYUAN LIU SIYANG ZHANG NA PAN WEI ZHOU ZHIXIONG |
| description | The invention belongs to the technical field of sulfur recovery and particularly relates to a system and a method for reducing sulfur dioxide emission concentration of a sulfur recovery device and a desulfurization agent. The desulfurization agent comprises aminopolycarboxylic acid chelate iron, an aminopolycarboxylic acid chelating agent, acrylamide and fatty alcohol polyoxyethylene ether-9 and water. The system comprises a complex iron desulfurization device, the sulfur recovery device and a liquid sulfur tank gas stripping device; tail gas generated by degassing of a liquid sulfur tank and the sulfur recovery device is purified in a complex iron desulfurization system, so that various factors causing sulfur dioxide emission of the sulfur recovery device are radically eliminated from the source; the sulfur dioxide concentration of flue gas after incineration is guaranteed to be lower than 50 mg/Nm ; thermal reaction and conversion parts of an existing sulfur recovery device are not changed, so that the investment is low and the running cost is low; air is utilized for degassing of the liquid sulfur tank and serves as regeneration air of the complex iron desulfurization system, so that the running cost of liquid sulfur degassing purification is reduced; a comprehensive and complete solution is provided for reducing the sulfur dioxide emission concentration of the sulfur recovery device. |
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The desulfurization agent comprises aminopolycarboxylic acid chelate iron, an aminopolycarboxylic acid chelating agent, acrylamide and fatty alcohol polyoxyethylene ether-9 and water. The system comprises a complex iron desulfurization device, the sulfur recovery device and a liquid sulfur tank gas stripping device; tail gas generated by degassing of a liquid sulfur tank and the sulfur recovery device is purified in a complex iron desulfurization system, so that various factors causing sulfur dioxide emission of the sulfur recovery device are radically eliminated from the source; the sulfur dioxide concentration of flue gas after incineration is guaranteed to be lower than 50 mg/Nm ; thermal reaction and conversion parts of an existing sulfur recovery device are not changed, so that the investment is low and the running cost is low; air is utilized for degassing of the liquid sulfur tank and serves as regeneration air of the complex iron desulfurization system, so that the running cost of liquid sulfur degassing purification is reduced; a comprehensive and complete solution is provided for reducing the sulfur dioxide emission concentration of the sulfur recovery device.</description><language>eng</language><subject>CHEMISTRY ; COMPOUNDS THEREOF ; INORGANIC CHEMISTRY ; METALLURGY ; NON-METALLIC ELEMENTS ; PERFORMING OPERATIONS ; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL ; SEPARATION ; TRANSPORTING</subject><creationdate>2015</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20150722&DB=EPODOC&CC=CN&NR=104787730A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,777,882,25545,76296</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20150722&DB=EPODOC&CC=CN&NR=104787730A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>ZHU MAOYUAN</creatorcontrib><creatorcontrib>LIU SIYANG</creatorcontrib><creatorcontrib>ZHANG NA</creatorcontrib><creatorcontrib>PAN WEI</creatorcontrib><creatorcontrib>ZHOU ZHIXIONG</creatorcontrib><title>System and method for reducing sulfur dioxide emission concentration of sulfur recovery device and desulfurization agent</title><description>The invention belongs to the technical field of sulfur recovery and particularly relates to a system and a method for reducing sulfur dioxide emission concentration of a sulfur recovery device and a desulfurization agent. 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The system comprises a complex iron desulfurization device, the sulfur recovery device and a liquid sulfur tank gas stripping device; tail gas generated by degassing of a liquid sulfur tank and the sulfur recovery device is purified in a complex iron desulfurization system, so that various factors causing sulfur dioxide emission of the sulfur recovery device are radically eliminated from the source; the sulfur dioxide concentration of flue gas after incineration is guaranteed to be lower than 50 mg/Nm ; thermal reaction and conversion parts of an existing sulfur recovery device are not changed, so that the investment is low and the running cost is low; air is utilized for degassing of the liquid sulfur tank and serves as regeneration air of the complex iron desulfurization system, so that the running cost of liquid sulfur degassing purification is reduced; a comprehensive and complete solution is provided for reducing the sulfur dioxide emission concentration of the sulfur recovery device.</abstract><oa>free_for_read</oa></addata></record> |
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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 | System and method for reducing sulfur dioxide emission concentration of sulfur recovery device and desulfurization agent |
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