Claus Sulfur Recovery Process

Sulfur Recovery BASF Catalysts

Sulfur recovery is an important process for natural gas processing plants and refineries The raw feed streams often contain gases such as H 2 S and CO 2 H 2 S is a highly toxic gas and contributes to SO 2 emissions To comply with environmental regulations the sulfur species are converted to elemental sulfur and water via sulfur recovery technologies such as Claus Sulfur Recovery Units and

The Claus Process netl doe gov

Figure 1 2 shows a typical process flow scheme of a 2 stage straight through 3 Claus sulfur recovery unit SRU Acid gas from the acid gas removal AGR process along with overhead gases from sour water stripping and a small amount of recycle from the tail gas treating unit not shown are burned in the Claus

Process and Plant Design for 99 Sulfur Recovery from

The modified Claus process is used to achieve a recovery of 97 To achieve the desired 99 sulfur recovery a Tail Gas Unit TAIL GAS UNIT must be added In this section the modified Claus process is analyzed from chemical and processing perspectives Fig 1 shows a schematic of the modified Claus process 1 Fig 1

Sulfur Recovery FSC 432 Petroleum Refining

Sulfur recovery takes place in a series of two steps Claus Process and SCOT Process 3 In the Modified Claus Process partial combustion of H 2 S takes place to generate SO 2 that is reacted with the remaining H 2 S to recover sulfur as elemental sulfur The Modified Claus Process once through burner operation works only with acid gases

What you should know about Sulfur Recovery Unit Claus

In a Sulfur Recovery Unit plant there are two sections played the role of elemental sulfur recovery from acid gas containing H2S Thermal section and Catalytic section In the Catalytic section

Corrosion/Erosion in Sulfur Recovery Real Life Examples

Corrosion/Erosion in Sulfur Recovery Real Life Examples By Philip J Oberbroeckling P E 2011 Sulfur Recovery Symposium Vail Colorado September 12 16 2011 4 2011 Sulfur Recovery Symposium Vail Colorado September 12 16 2011 Wet H 2 S Corrosion 550# Steam Claus Reheater

Effect of Sulfur Recovery Requirements on Optimization

To examine the effect of sulfur recovery requirements on the optimization of integrated sweetening sulfur recovery and TGCU s a process simulation program called TSWEET Bryan Research Engineering was used 2 TSWEET can simulate the entire system including sweetening sulfur recovery and TGCU in a single run permitting convenient optimization of the entire complex

OxyClaus Sulfur Recovery Unit Air Liquide

OxyClaus is a technology to boost the capacity of new and existing Claus plants which are used to convert hydrogen sulfide into sulfur The technology replaces the main part of the air in the combustion process with pure oxygen making the plant more efficient and less costly

Process Analyzer Best Practices for Sulfur Recovery

PROCESS INSTRUMENTS WESTERN RESEARCH Technical Paper Process Analyzer Best Practices for Sulfur Recovery Enhanced Claus and Tail Gas Treating Applications PRESENTED AT Sour Oil Gas Advanced Technology SOGAT 5th International Conference Abu Dhabi UAE March 2009 Adel S Misfer Saudi Aramco Kingdom of Saudi Arabia Suryanarayana Vedula

Sulfur Recovery UnitSulphur Recovery Unit SRU in

Project 3 10 000 tons/year sulfur recovery unit of Henan Kailun Chemical Co Ltd The project adopts the three stage Claus selective oxidation process and the total sulfur recovery rate reaches 99 The process gas is reheated by medium pressure steam and a combined catalyst is used

Howebaker Claus Sulfur Recovery Process Howe Baker

The Sulfur Recovery Unit SRU is based on the modified Claus Process which is a two step reaction scheme overall A portion of the total H2S is burned in the Reaction Furnace to form SO2 Then the H2S and SO2 react at an optimal 2 1 ratio to form elemental Sulfur Sx across the Claus Reactors

SPEMS Corrosion Control in Sulphur Recovery

across the Claus reactors After each catalytic stage liquid sulfur is recovered in the Claus condensers It should be noted that SRUs have very complicated sulfur chemical reactions resulting in many sulfur species existing at any one condition or process step Figure 1 Typical Three Stage Claus Sulphur Recovery Unit

Claus Sulphur Recovery Options

Claus plant To achieve 99 percent sulphur recovery the tail gas from the second Claus bed is fed directly to the reactor bed containing the direct oxidation catalyst To achieve 99 5 percent sulphur recovery the process includes a hydrogenation reactor upstream of the direct oxidation bed to convert all remaining sulphur species to H

Sulfur Recovery Unit Air Liquide

Sulfur Recovery Units SRU from Air Liquide Engineering Construction use a combustion and catalytic process to recover a pure form of sulfur from acid gas streams containing hydrogen sulfide If credit is given for steam produced in the SRU operating costs can be negligible Sulfur Recovery Units also known as Claus Units use a feedstock

6 2 2 Sulfur Recovery and Tail Gas Treating netl doe gov

Altogether this process series approach can achieve a typical overall sulfur recovery of 99 8 Sulfuric acid synthesis is an alternative to sulfur recovery via the Claus process This may be preferred if the plant is located close to a sizeable market for sulfuric acid

The Claus Process netl doe gov

Figure 1 2 shows a typical process flow scheme of a 2 stage straight through 3 Claus sulfur recovery unit SRU Acid gas from the acid gas removal AGR process along with overhead gases from sour water stripping and a small amount of recycle from the tail gas treating unit not shown are burned in the Claus furnace with sufficient air or oxygen to produce an overall gas mixture with the

Claus Processan overview ScienceDirect Topics

The most common sulfur recovery process is the Claus process where one third of the H 2 S must be converted to SO 2 for proper stoichiometry The theoretical sulfur recovery efficiency drops sharply when the stoichiometry differs from the desired 2 mol of H 2 S to 1 mol of SO 2 A proper amount of oxygen typically in the form of air must be introduced to the reaction furnace

Claus Sulfur Recovery Productsaimsgt

Claus Sulfur Recovery Products Product Characteristics Standard Sizes Claus Catalysts S 201 Sulfur conversion catalyst used in natural gas plants refineries and smelters having Claus process plants and other types of sulfur recovery units Spheres ½ x¼ 6 4 mm12 7 mm 3x6 mesh 3 3 mm6 7 mm 5x8 mesh 2 4 mm4 0 mm S 2001/

Sulfur Recovery Unit Air Liquide

With Sulfreen TM the Claus tail gas is catalytically purified resulting in an overall sulfur recovery rate of up to 99 5 Here the Claus reaction takes place below the sulfur dew point so that the sulfur is adsorbed on the Sulfreen TM catalyst The LTGT TM process meanwhile purifies the Claus tail gas through wet scrubbing By recycling the hydrogen sulfide rich stream to the unit this method can raise sulfur recovery

A Complete Range of Solutions for Sulfur Recovery

Claus Process Modified Claus Process with 98 sulphur recovery Special High Ammonia content design Oxygen Enrichment for debottlenecking Expertise in the treatment of lean acid gases down to 20 H 2 S by cofiring of acid gas with proprietary burners Turndown Ratio down to 10 5

SULPHUR RECOVERY BY TAIL GAS TREATING

the sulfur recovery to about 99 To choose a suitable process various parameters should be kept in mind namelycost product specifications safety and location Keywords Sulfur Sulfreen MCRC process Claus process sulfuric acid Introduction Sulfur is a widely used chemical agent for its chemical and non chemical properties Sulfuric

SULFUR RECOVERY UNIT

The Sulfur Recovery Unit SRU is often referred to as the Claus Process This process recovers elemental sulfur from petroleum and natural gas refining processes and reduces the hazardous sulfur emissions to limits permitted by national and local air quality requirements Zeeco supplies all of the combustion equipment used in the Claus process including high intensity style burners reaction

Modification of Claus Sulfur Recovery Unit by Isothermal

The Claus process teaching an old dog new tricks Catal Today 200379 487–94 11 Asadi S Pakizeh M Chenar MP An investigation of reaction furnace temperatures and sulfur recovery Front Chem Sci Eng 20115 362–71 12 Ghahraloud H Farsi M Rahimpour M Modeling and optimization of an industrial Claus process thermal and catalytic

Sulfur Recovery Unit Reliability Sulfur Recovery

The Claus plant is in place to convert H2S to valuable elemental sulfur and to minimize the amount of sulfur compounds released to the atmosphere Many SRUs also now have a Tail Gas Cleanup Unit TGCU following the Claus Plant in order to recover even more sulfur and further minimize emissions Learn more about the Sulfur Recovery Process

Sulfur Recovery Unit SRU ｜CHIYODA CORPORATION

The sulfur recovery rate of the Claus process is about 95 to 97 The tail gas that contains unrecovered sulfur is fed to the tail gas treating unit TGT The recovered sulfur is stored in the sulfur pit and shipped as product after undergoing a degassing process to remove H 2 S The Claus process is an equilibrium process and a modified

Explore further

Sulphur Recovery Chemical Elements Chemical Process

claus tgtu recovery 1 dry bed processes 2 wet bed processes a oxidise to so2 absorb or react b extend claus reaction on solid bed a extend claus reac in liq phase with catalyst b oxidise to so2 absorb or react c reduce to h2s absorb or react review of modified claus process modified claus process equilibrium sulfur conversion

The Claus Sulfur Recovery Process Sulfur Recovery

The Claus Sulfur Recovery Process Sulfur recovery refers to the conversion of hydrogen sulfide H2S to elemental sulfur Hydrogen sulfide is a by product of processing natural gas and refining high sulfur crude oils There are many sulfur recovery technologies available for different applications however the most common conversion method used is the Claus process

Sulfur Recovery in Claus Plants Linde Gas

Claus plants play a key role in refinery productivity They process concentrated hydrogen sulfide H 2 S fractions converting them into sulfur dioxide SO 2 and ultimately elemental sulfur They can also remove pollutants particularly those caused by decomposing ammonia Today many refinery operators are challenged to manage rising H 2 S levels On the one hand dwindling reserves mean the average S

1988 THE SUPERCLAUS PROCESS

CLAUS process this SUPERCLAUS process increases the sulphur recovery rate of a Claus plant to more than 99 Two process versions have been developed the SUPERCLAUS 99 process and the SUPERCLAUS 99 5 process 45 3 THE CLAUS PROCESS /f The Claus process was developed around 1890 and was based on

Sulfur Recovery AMETEK Process Instruments

Sulfur Recovery The Claus sulfur recovery unit SRU and tail gas treating unit TGTU require a suite of process gas analyzers to ensure safe operation high efficiency and meet environmental regulations The development of sulfur recovery processes for oil refining gas processing and coke oven plants began as a need to meet environmental

8 13 Sulfur RecoveryEPA

produced by the Claus process Claus sulfur recovery plants typically recover 95 to 99 9 percent of the hydrogen sulfide feedstream depending on the level of control employed 8 13 2 Process Description1 2 Hydrogen sulfide a byproduct of crude oil and natural gas processing is recovered and converted to elemental sulfur by the Claus process

SuperClaus Process for enhanced sulfur recovery

The modern modified Claus process can remove up to 98 sulfur from Sulfur Recovery Unit SRU inlet streams For greater Sulfur Recovery Efficiency SRE that is required by current regulations a variety of add on processes for further sulfur removal from the Claus tail gas have been developed