Sulfur recovery tail gas processing technology and system

A tail gas treatment and sulfur recovery technology, applied in gas treatment, dispersed particle separation, membrane technology, etc., can solve the problems of complex operation and maintenance, easy corrosion of the system, high operating costs, etc., to achieve abundant resources, reduce secondary pollution, maintain and The effect of low maintenance cost

Inactive Publication Date: 2018-02-13
LUOYANG RUICHANG PETROCHEM EQUIP
View PDF9 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Patent ZL201510401950.X adopts sodium-magnesium wet sulfur flue gas desulfurization technology, and the absorbent is Mg(OH) 2 And NaOH, both are wet desulfurization processes, which consume a lot of water, and the operating costs are relatively high, the system is easy to corrode, and the later operation and maintenance are complicated

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Sulfur recovery tail gas processing technology and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] The present invention will be further described below in conjunction with embodiment, but protection scope of the present invention is not limited to this: the present invention is not only applicable to secondary Claus+SCOT sulfur recovery process, tail gas incineration and waste heat recovery process, and semi-dry flue gas desulfurization The combined process is also applicable to SO in the tail gas of other Claus sulfur recovery processes 2 Concentration≤1000mg / Nm 3 Any obvious improvements or changes made by those skilled in the art to the above embodiments will not exceed the concept of the present invention and the protection scope of the claims.

[0022] As shown in the figure: a sulfur recovery tail gas treatment process system:

[0023] 1) Klaus + SCOT process

[0024] Contains H 2 S acid gas enters the acid gas waste heat boiler 2 to by-produce medium-pressure steam through the acid gas combustion furnace 1 under-oxygen combustion, and reduces the temperatu...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a sulfur recovery tail gas processing technology and system. After sulfur is recovered from an acid gas containing hydrogen sulfide through a Klaus+SCOT technology, the tail gas of sulfur production performs the heat exchange with intermediate temperature smoke of the outlet of a tail gas heat recovery boiler, so the fuel consumption of the tail gas boiler is saved, the waste-heat utilization efficiency is improved, the smoke temperature is further reduced, and the effective combination with a semi-drying desulfurization technology is realized. The smoke containing SO2is fed into a circulating fluidized bed desulfurizing tower, the SO2 and an absorbent perform the neutral reaction under the action of atomized water, and the SO2 content in the discharged smoke is less than 50 mg / Nm3. The desulfuration process of the technology and system has no wastewater discharge, no corrosion and no rime fog phenomenon, and the investment and operating cost is low.

Description

technical field [0001] The invention relates to the technical field of sulfur recovery tail gas treatment, in particular to a sulfur recovery tail gas treatment process and system. Background technique [0002] Environmental issues are a prominent issue that my country attaches great importance to. The GB31570-2015 "Petroleum Refining Industrial Pollutant Discharge Standard" implemented on July 1, 2015 stipulates that SO 2 The emission limit is 100mg / Nm 3 , compared to the SO 2 Emission concentration is not higher than 960mg / Nm 3 A reduction of -90% shows my country's determination to control environmental pollution. At present, domestic sulfur recovery tail gas treatment methods mainly include low-temperature Claus, selective catalytic oxidation and reduction absorption. The reduction and absorption process has strong adaptability to the Claus sulfur recovery unit, high purification degree, and the sulfur recovery rate can reach 99.8%. The SO in the flue gas after being...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/52B01D53/50B01D53/75
CPCB01D53/343B01D53/504B01D53/52B01D53/75B01D2258/0283
Inventor 邵松王弯弯刘颖王丽洁
Owner LUOYANG RUICHANG PETROCHEM EQUIP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap