Molten sulphur filtration

Most sulphur is used for the production of sulfuric acid (H2SO4). Before elemental sulphur can be fed to the contact process, typically with a vanadium catalyst, it needs to be purified. If sulphur is filtered in a molten sulphur process the maintenance interval of the sulphur burners, catalyst beds, and pipe reactors is significantly improved. This results in considerably lower maintenance costs.

Most sulphur is used for the production of sulfuric acid (H2SO4). Before elemental sulphur can be fed to the contact process, typically with a vanadium catalyst, it needs to be purified. If sulphur is filtered in a molten sulphur process the maintenance interval of the sulphur burners, catalyst beds, and pipe reactors is significantly improved. This results in considerably lower maintenance costs.

Molten sulphur filtration

Most sulphur is used for the production of sulfuric acid (H2SO4). Before elemental sulphur can be fed to the contact process, typically with a vanadium catalyst, it needs to be purified. If sulphur is filtered in a molten sulphur process the maintenance interval of the sulphur burners, catalyst beds, and pipe reactors is significantly improved. This results in considerably lower maintenance costs.


A molten sulphur filter system typically consists of a two stage filtration system. This system consists of a horizontal pressure leaf filter followed by a polishing/safety cartridge filter.


Filtration Group has developed Horizontal Pressure Leaf - Retractable Bundle and Retractable Shell type filters for sulphur filtration. Key characteristics of these filter models are a big filtration surface, easy to clean filter plates, and a heating jacket in order to maintain the high process temperature.An additional cartridge filter is placed downstream of the horizontal pressure leaf filter.


Sulphur filters can be found in the following industries:

  • Fertilizer industry.
  • Sulphuric and phosphoric acid producers.
  • Oil refineries
  • Rubber producers.
  • Mining corporations.
  • Carbon disulfide (CS2) producers.


Key advantages of Filtration Group's sulphur filtration:

  • Undisputed market leader with by far the largest installed base worldwide.
  • Several other players have copied our design, some of which with a reasonable result, but none with a better one.
  • Mechanical finish of the highest standard, leading to longevity of the filters.
  • Impact resistant and tightly assembled 5-ply filter plates with superior release properties.
  • Lower maintenance costs resulting from proprietary engineering, not just for your filters but also for the downstream protected burner nozzles.
  • Experience-based cycle algorithms to optimize your total process performance.
  • Extensive process support for commissioning and local design requirements.
  • Advanced operator training and pragmatic testing guidance.
  • Fully fledged quality assurance system and certification/compliance track record.
  • And last but not least close customer interaction, whenever you need it, wherever you are.
     
AMALFC-EN-203-005-sulphur

Horizontal Pressure Leaf Filter (HPLF)

The horizontal pressure leaf filter is an enclosed filtration system and can be fully automated. This filter produces a high filtrate clarity after the clarification run and is also suitable for all kinds of filter aids.

 

 

Key characteristics (sulphur filtration)

  • Big filtration surface,
  • Easy to clean filter plates,
  • Heating jacket in order to prevent solidification
  • The pressure leaf filter itself has no rotating parts, thus keeping maintenance to a minimum

 

These advantages result in an economical filtration solution. For cake discharge the carriage with the filter leaves is driven outside the tank with an electric or hydraulic system. With a Retractable Shell system, the filter leaves are exposed by moving the tank away from the bundle.

The bayonet ring is opened hydraulically. The cake discharge is easily done with the filter opened.

The Retractable bundle type filter is equipped with a self-sealing quick release manifold coupling which is steam heated.

The Horizontal Pressure Leaf Filter, which we supply in the filtration cycle of liquid sulphur, can be tailor made to fit your requirements, in any of the following setups:

 

Retractable bundle (RB)

 

The shell doesn’t move; the bundle with filter elements moves in and out of the shell.

 

Retractable shell with an overhead suspension frame horizontal pressure leaf filter

 

Retractable shell with an overhead suspension frame

 

The bundle doesn’t move, the shell hangs from a support structure and moves over the bundle.

 

Retractable shell with a lower support frame

 

The bundle doesn’t move here either, the shell is supported by rails and moves over the bundle.

Retractable shell with a lower support frame

 

Filter elements

 

The leaf spacing is 125 mm to allow for precoat and longer filtration times. The filter leaves are mounted on a manifold which allows for easy removal and mounting of the filter leaves.

 

Features and benefits

 

  • Vertical position for easy cleaning
  • Retanglar filter screens, double sided
  • Five layers of wire mesh
  • Reinforced binding around the full circumference of the filter leaf to protect the rim during manual cake removal by tapping

 

 

You will find us in almost every industry.

Ever wondered how edible oil is filtered? Or sugar? Beer? Cocoa? Sulphur? Ink? You name it! There is a good chance your product was filtered by one of our products.

 

Filtration Group Process Systems is active in almost every market that concerns process filtration separating solids from liquids since 1930.

Applications

Filtration Group has decades of experience in being able to supply innovative filtration technologies to provide optimized solutions for the chemical, food and beverages, oil processing industries current and future challenges.

 

Our products and services are designed to provide our customers with the highest consistency and quality.

We are here for you!

To learn more about Filtration Group Process Systems, our brands amafilter® & LFC Lochem® or our products like the Cricketfilter please contact us.

 

No query is too small for our dedicated customer service team.

Contact us