Sulfur Recovery

Reclaim your elemental sulfur with an Oberlin Pressure Filter

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Take control of sulfur purity with our integrated cake wash system. Keep your chemistry in balance. 

The Oberlin Pressure Filter provides clean liquids and dry solids that are typically over 75% dry by weight, making it an excellent choice for dewatering elemental sulfur from varying amine processes. The filter’s cake wash system allows you to control and prioritize solids purity and chemical recovery. Popular system options include odor containment and hazardous area classifications. 

Our sulfur recovery filters are engineered to order.

Contact Steve Rose - Energy Division Manager, 262-547-4900 × 204 or email swr@oberlinfilter.com to discuss the right system for your unique application. 

Watch How the Filter Works in the Sulfur Recovery Process 


Animation of filtration process for sulfur application with a reusable belt
Using pressure and a cake of filtered solids for Sulfur Recovery

The Oberlin Filter pumps dirty liquid through a very tight media in a self-contained chamber. Sulfur builds into a cake on the media which catches more sulfur. Pressure continues to force the liquid through the densely packed cake and media. The cake can then be set to wash multiple times to recover the chemistry and control the purity of your sulfur. 

The Oberlin Filter's fully automatic features and simple design deliver both dry solids and clean liquids without operator contact, minimizing exposure to hazardous materials. 

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Industries & Applications
Sulfur Recovery Benefits
Oberlin Filter Benefits
Natural Gas
Landfill Gas
Biodigester
Dairy Farms
Coal Gasification
Claus Tail Gas Cleanup
Refinery Desulfurization
Water Treatment Facilities
Geothermal Plants
Offshore Platforms
FPSO
Chemical Plants
Lean Amine
Rich Amine
Automatic pressure filter operates with all types of chemical treatments that produce insoluble sulfur

Efficiently removes solids down to 1 micron

Automatically cycles without operator intervention, minimal maintenance

Filter cake dryness to over 75% typical

Take up less space with a small footprint, smaller footprint to comparable technologies
Ability to process ultra-pure sulfur for higher value

Flexible process - select the number of the washes that fits your sulfur recovery process

You control the sulfur purity level with the number of washes applied

Keep the chemistry - Recover fluid from the Oberlin Filter cake

Maintain an equilibrium in your system to recover sulfur

Replace your Vacuum or Gravity Filter with an
Oberlin Pressurized Filter for the highest quality Sulfur 

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Dry cake discharge

Minimal consumable costs

4-sided sealing, no bypass

Modular/custom design for your small spaces
Yes

Yes

Yes

Yes
Oberlin Filter
Gravity Filter
No

No

No

No
No

No

No

No
Vacuum Filter
Benefit

Sulfur Recovery Case History Applications 

Oberlin placed an OPF14 MLP filter unit on a FPOS ship in the Adriatic, just off the coast of Italy. The unit has been operating since April of 2013. The unit has 14square feet of filter area and is producing 3" to 4" thick filter cakes repeatedly since its start. The weight of dry sulfur filter cake is as much as 2 long tons per day. Depending on the chemistries employed, results may differ. 

Landfill Gas
Oberlin Filters in landfill gas operations listed on the Landfill Methane Outreach Program

Sulfur Recovery - Wet Scrubber: Landfill Gas Project in Roosevelt, Washington

The Oberlin Filter - OPF4SD with 4 ft² of filtering area is used in this application.   

 

Overview of Filter Operation:

  • Application: Sulfur recovery

  • Fluid: Process Mother Liquor

  • Flowrate:  30 GPM

  • Solids: 115 lbs of dry sulfur cake per day

  • Dry Filter Cake is 60-70% Solids by Weight

  • Filter Cycle Range : 60 - 130 minutes

 

Sulfur Recovery - Wet Scrubber: Landfill Gas Project, City of Dallas, TX  

 

This landfill operates a system that removes H2S from landfill gas using a liquid scrubber (similar to Sulferox or LO-CAT).  Once the H2S is converted to sulfur, it is removed from the recirculating solution using the Oberlin Filter.  A vacuum filter was replaced because it was required to manually scrape the cake off of the cloth drum along with the high variation of quality of filter cake produced (often losing more solution than it should).

 

Oberlin Pressure Filter Model OPF-12SD with 12 ft² of filtering area is used in this application.

Overview of Filter Operation:

  • Application: Sulfur recovery

  • Fluid: Process Mother Liquor

  • Flowrate: 120 GPM nominal

  • Solids: 1,000 pounds dry sulfur cake per day

 

 

Biodigester

Sulfur Recovery - Wet Scrubber

The Oberlin Filter is used for sulfur recovery for bio-digester off gas for food plant in Tennessee.

Contact Steve Rose - Energy Division Manager, 262-547-4900 × 204 or email swr@oberlinfilter.com to discuss the right system for your unique application. 

Dry Filtered Sulfur Cake from the Oberlin Filter