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VGO Hydrotreating – Mild Hydrocracking

VGO hydrotreating applies to different feeds, coming either directly from the vacuum distillation or from conversion processes (visbreaking, coking,...). The main goal is to prepare adequate feeds for further conversion units, generally fluidized catalytic crackers (FCC) or hydrocracking, mainly by reducing sulfur and nitrogen contents.

The market changes affect refinery configurations. Mild hydrocracking technology allows refiners to convert 20-60% of the VGO feeds, produce high quality cat cracker feedstocks along with a certain quantity of middle distillates.

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Axens Offer

Axens VGO hydrotreating and Mild hydrocracking technologies are well established with over 60 units licensed worldwide.

VGO hydrotreating provides some remarkable improvements in FCC operations thanks to hydrogen addition in hydrotreated VGO. Mild hydrocracking increases the VGO conversion to 20%-60% and produce middle distillates along with hydrotreated VGO. VGO hydrotreating and Mild hydrocracking units are operated under relatively mild conditions and producing naphtha, diesel as well as VGO feed to downstream cracking unit.

Depending on unit severity, the diesel cut may require further hydrotreatment. Due to its aromatics and organic-nitrogen contents, it is more refractory to additional hydrotreating than straight-run diesel. This has led to the commercialization of the HyC-10 process, which meets the ULSD challenge.

VGO Hydrotreating/Mild Hydrocracking

The addition of VGO hydrotreating or mild hydrocracking units (MHC) upstream of the FCC can be an economically attractive solution to help to adapt overall FCC performance in terms of product slate, product qualities and FCC regenerator SOx and NOx emissions. Hydrotreated FCC feeds have less sulfur and higher H-to-C ratios. This in turn leads to greater volumes and better quality FCC gasoline.

More than 60 units have already been licensed
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Modular Unit
Axens VGO Hydrotreating

HyC-10™

In HyC-10™, the mild hydrocracking units (MHC) diesel receives the entire H2 make-up needed for both reaction sections and is sent to a polishing reactor operated in once-through mode. In addition, HyC-10™ systems can be designed to co-process other difficult feedstocks present in the refinery such as LCO, light cracked GO and visbroken GO (HyC-10+ process).

Commercial Bulletin
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Modular Unit
hyc-10
Catalysts

Hydrocracking Catalysts

Axens' Hydrocracking Catalysts upgrade a wide range of heavy feedstocks to produce the desired slate of products while meeting ultimate quality targets.

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Catalysts

VGO Hydrotreating Catalysts

Nowadays, VGO (Vacuum Gasoil Hydrotreating) HDT operators are not only focused on maximizing HDS performance, they are also looking for a boost in nitrogen removal and aromatics saturation. Depending on the Unit Pressure and targeted achievement, Axens offers a complete portfolio of Catalysts.

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Gradings

Arsenic Management

Arsenic is by far the most severe poison for Catalysts. Arsenic maximum allowable content on hydroprocessing catalysts during operation, depending upon the service, is in the range of hundreds of wppm.

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Gradings

Gums & Polymer formation control

Pressure drop induced by gum formation is frequently encountered in unit processing some cracked feedstock derived from various conversion processes. The olefins and mainly the diolefins contained in these streams tend to polymerize and get oxidized forming a crust which deposit in the upper layers of the reactor.

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Gradings

Nickel & Vanadium Management

Nickel and vanadium are naturally present in Crude Oil and usually in fractions boiling over 500°C. Nickel and vanadium poisoning affect only VGO and resid hydrotreaters and hydrocrackers.

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Gradings

Silica Management

Silicon is a well-known widespread poison for hydroprocessing catalysts. The main contributor to silicon is the Delayed Coker. In addition, there is a general tendency in the oil production industry to use more silicon-based flow improvers.

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Gradings

Speciality Bed Topping

In Hydroprocessing reactors, pressure drop is mainly induced by particulates build-up and gum formations. Pressure drop not only affect the capacity of the unit but can also have detrimental impact on the distribution.

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Furnaces

Furnace(s) is a key equipment considering the need for optimal operation of unit. Thanks to an extensive design experience with feedbacks from operators and a complete knowledge of this process, Heurtey Petrochem Solutions provides an unparalleled service such as these following features:

  • High fuel efficiency (94%+) depending on fuel S level
  • Fully Modularized
  • Lowest Emission (95%+ reduction with emission reduction technology)
  • Optimized Plot Plan
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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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Digital Applications

Innovative approach leveraging digital solutions leading to improved asset operation and performance.

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Reactor Internals

In today’s complex environment, refineries and petrochemical plants around the world need advanced solutions to reach operational excellence. In units featuring fixed-bed reactors, the use of high-efficiency reactor internals are essential to help achieve this goal.

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Events

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Kingdom of Saudi Arabia - UTC+3
3 days
Conference
picto Carbon Capture & Storage + 7
picto Oil Refining picto Petrochemicals CO₂ Capture VGO Hydrotreating (CFHT) / Mild Hydrocracking Process Technologies Sulfur Removal for Oil, Gas & Petrochemicals Adsorbent Middle-East

MEPEC 2024

MEPEC, takes place in Kingdom of Saudi Arabia, from 6 to 8 May 2024, serves as a crucial junction where industry connects with academic institutions and research and development centers, fostering collaboration under a single roof. With a core focus on pivotal industries, such as oil, gas, petrochemicals, and utilities, MEPEC is at the forefront of shaping the future of process engineering.
Learn more

Speakers

Romain Roux
Decarbonization & Consulting Vice President
Joseph Ibrahim
Managing Director, Middle East
Peggy Chan
Technology Engineer, Technology & Technical Support Business Division, Low Carbon Solutions and Gas
Jan Reneteau
Regional Sales Manager, NECTIS
Marc Elia
Regional Sales Manager

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