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FCC Naphtha Sweetening

Mercaptans (RSH) are naturally present in crude oils but are also generated from other sulfur compounds during crude fractionation and cracking processes. Mercaptans are undesirable because of their obnoxious odor and their tendency to hydrolyze, forming toxic and corrosive hydrogen sulfide. The classic tests for mercaptan presence are the “doctor” test and copper corrosion strip test.
The Sweetn'G® process eliminates mainly mercaptans by extraction or by their conversion into less aggressive compounds, protecting downstream equipment or units such as hydrotreaters as well as meeting fuel specifications.

Sweetn'G®

Sweetn'G® is an intermediate process dedicated to Gasoline cut which can use else the SCPS-ready in fixed bed else the LCPS-30 diluted in the caustic depending on client requirements.

This process will selectively convert the acidic mercaptans to neutral disulfides in order to pass the copper strip, doctor test. Heavy sulfur molecules like thiophenes cannot be efficiently removed or transformed by caustic. As a consequence, light naphtha notably from FCCU and H-Oil® are usual feedstocks for a Sweetn'G® process. As a result, the unit scheme is adapted for each client and associated objectives such as meeting gasoline pool sulfur constraints.

Sweetn'G® combines the advantages of Sulfrex™ and Sweetn'K™ technologies thanks to optimized caustic management and without mandatory proprietary equipment. This results in a lower initial investment as well as low operating costs.

Robust and simple solution leveraging Axens’ expertise in the field of LPG sweetening
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Catalysts

Sweetening Catalysts

For the sweetening of liquid hydrocarbons Axens offers catalysts using sulfonated cobalt phthalocyanine as the active material.

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Adsorbents

Arsine Removal Adsorbents

The poisonous effects of arsine and other metal hydrides on hydrogenation and polymerization catalysts is well documented. By far the most common, arsine can seriously deactivate the high-activity Ziegler Natta, metallocene and noble metal catalysts used for processing cracked light ends.

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Material specially developed to achieve your feedstock’s specification requirements.

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Sulfur Removal Adsorbents for Oil, Gas & Petrochemicals

Hydrogen sulfide (H₂S), COS, mercaptans or sulfides are common contaminants that must be removed from various gases and liquids such as natural gas, NGLs, LPGs, cracked gases, olefins or biogas.

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Consulting

Axens offers a customized approach, including tailored studies, audits and consulting services, covering technical and operational challenges.

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Modular Units

A modularization strategy offers superior benefits versus on-site manufacturing. During the last 40 years, Axens has supplied over 500 modular units, both onshore and offshore, providing tailor-made designs according to client project specifications.

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Technical Support & Performance Management

Axens is fully committed to be your partner and provide assistance and support during your project lifecycle, from conception to start-up & running operations.

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Events

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Lyon, France - CEST
6 days
Conference
picto Oil Refining + 18
picto Petrochemicals Catalytic Cracking Catalytic Reforming Diesel Hydrotreating FCC Naphtha Hydrotreating FCC Naphtha Sweetening Naphtha Treatment Catalysts Process Technologies CCR Reforming Arsine Removal Adsorbent Chloride Removal Adsorbent Claus Catalysts Drying Series Adsorbent Reforming Catalysts Sulfur Removal for Oil, Gas & Petrochemicals Adsorbent Sweetening Catalysts Europe

International Congress on Catalysis ICC

The 18th International Congress on Catalysis will be held in Lyon on July 14-19, 2024.
All French academic laboratories related to catalysis, along with the majority of the industrial companies will contribute to this successful event. The strong background of France continues today thanks to a young generation of talented scientists in all fields of catalysis.
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Speakers

Quentin Debuisschert
Chief Executive Officer

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