• Oil Refining
  • Petrochemicals
  • Gases
  • Alternative Fuels
  • Water

Advanced Process Control

Fast Paybacks from Unique Multivariable Predictive Control Services and Softwares

As a leading process licensor, and based on its unique core knowledge, Axens has developed models and apply them to APC in refining and petrochemicals processes such as selective hydrogenation, etherification, isomerization, reforming, hydrotreatment and hydrocracking.

APC provided by Axens:

  • ensures robust control,
  • increases process operation stability;
  • allows operators to reach the economical optimum yield through unique services and applications.

 

 

MVAC is a core technology, consisting of valuable On-Line or Off-Line components that are designed to efficiently implement and maintain plant-wide APC applications.
This MVAC Suite is built around Axens Multivariable State Space Predictive Controller (MVAC), which provides robust control and the safe capture of plant benefits. Axens recommends using MVAC technology exclusively, but it can be integrated with other control software at the customer’s request.

To know more about the MVAC please download the dedicated Commercial Bulletin on APC, linked below in the Documentation Center.

Axens has developed for its APC applications unique module on dedicated process technologies such as Prime-G+®, Eluxyl® and CCR Reforming. For more information, consult the commercial bulletins in the Documentation Center:

  • APC for Prime-G+®,
  • APC for Eluxyl®,
  • APC for CCR Reforming.

For other applications, such as isomerization, Prime D or Pygas, please consult the list below.

Advanced Process Control

Hydrotreatment
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APC-Prime-G+

APC Technology for Prime-G+®

Multivariable predictive control on FCC gasoline hydro- desulfurization unit is an unavoidable factor in succeeding in first-class process optimization.

APC accurately maintains diolefins hydrogenation in SHU section, thus protecting HDS catalyst. APC stabilizes Splitter column, manipulating key operating variables for fine control of sulphur content in side draw product without giveaway, while minimizing reboiling energy consumption.

More details in the Commercial Bulletin (link in the Documentation Center)

APC-Prime-D

Specific Application for Prime-D

The Prime-D advanced control package combines Axens' latest generation multivariable controller MVAC, in association with on line inferential reactor model and feed switch technology; it is designed to maximize the benefits from Prime-D process at the lowest operating cost...

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APC-Pygas

The Pygas advanced control package combines Axens' latest generation multivariable controller MVAC with on line reactor models, in association with inferentials; it is designed to maximize the benefits from Pygas process at the lowest operating cost. As process licensor, catalyst manufacturer and advanced control technology supplier, Axens combines all the necessary expertise for successful Pygas APC projects...

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Conversion
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APC-R2R

A tailored application for R2R Units

The R2R advanced control package combines Axens' latest generation multivariable controller MVAC, in association with on line inferential technology; it is designed to maximize the benefits from R2R process, in an environment with difficult multivariable interactions...

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APC-Mild Hydrocraker

A tailored application for Mild Hydrocracking Units

The Mild Hydrocracking advanced control package combines Axens' latest generation multivariable controller MVAC, with on line reactor models and optimizer, in association with inferentials; it is designed to maximize the benefits from MHDK process at the lowest operating cost...

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APC-Visbreaking

The Visbreaking advanced control package combines Axens' latest generation multivariable controller MVAC in association with a Stability Model (and P-Value analyzer) and fractionation inferentials. It is designed to maximize the cycle length of Visbreaking unit between two consecutive air decokings. As a process licensor and an advanced control technology supplier, Axens combines all the necessary expertise for successful Visbreaking APC projects...

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Other
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APC Technology for CCR Reforming

Skilfully exploiting multivariable predictive control on CCR Reforming unit is a key factor to succeed in first-class process optimization: Accurately maintains reformate quality (octane or aromatics content depending on scheme) while maximizing reformate yield and capacity of the unit.

Control strategy is not only focused on reaction section but combined with regeneration section. The critical factor of yield increase is to stabilize and target optimal coke content on catalyst.

More details in the Commercial Bulletin (link in the Documentation Center)

APC-Isomerization

The isomerization advanced control package combines Axens' latest generation multivariable controller MVAC, with on line reactor models and optimizer, in association with inferentials; it is designed to maximize the benefits from isomerization process at the lowest operating cost. As a process licensor, catalyst manufacturer and advanced control technology supplier, Axens combines all the necessary expertise for successful isomerization APC projects...

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APC- Polynaphtha

APC uses a model-based predictive control technology that drives the process towards the desired targets through the manipulation of several variables simultaneously while observing all process constraints. APC has a proven track record in delivering business objectives: reducing energy costs, increasing yields and improving operability...

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APC- Selectopol

APC uses a model-based predictive control technology that drives the process towards the desired targets through the manipulation of several variables simultaneously while observing all process constraints. APC has a proven track record in delivering business objectives: reducing energy costs, increasing yields and improving operability...

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APC-Etherification

APC uses a model-based predictive control technology that drives the process towards the desired targets through the manipulation of several variables simultaneously while observing all process constraints. APC has a proven track record in delivering business objectives: reducing energy costs, increasing yields and improving operability...

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APC-Alphabutol

APC solution for AlphaButolTM Unit

The AlphaButol advanced control package combines Axens' latest generation multivariable controller MVAC, with on line reactor models, in association with fractionation inferentials; it is designed to maximize the benefits from AlphaButol process, in an environment with complex, slow and non-linear multivariable interactions...

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APC-Sulfur Removal

A tailored application for Sulfur Removal Units

The SRU advanced control package uses Axens' latest generation multivariable controller MVAC.

It is designed to achieve optimum operation of the SRU, often a difficult to control process, in an environment with frequent composition and flowrate variations of the multi-component feed.

Poor operation can easily result in emission violations, SRU shutdown or costly constraints for upstream plant operations...

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APC Technology for Eluxyl®

As process licensor and advanced control technology supplier, Axens is in a unique position to provide APC (Advanced Process Control) for Eluxyl®. The APC algorithm drives the process towards the desired targets while manipulating multivariable predictive control on top of Axens proprietary SCS (Sequential Control System).

More details in the Commercial Bulletin (link in the Documentation Center).

Open Art
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APC-Crude

A tailored application for Crude Units (ADU)

Its objectives are to maximize the production of higher value products, minimize energy consumption, operate in safe and stable conditions and minimize the effects of changes in crude characteristics.

This application uses MVAC, Axens' latest generation multivariable predictive controller in association with inferentials and cutpoint technology...

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APC-LPG

A tailored application for LPG Units:

The LPG advanced control package combines Axens' latest generation multivariable controller with inferentials. It is designed to maximize the benefits from the LPG process at the lowest operating cost...

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Non Axens License
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APC-Ammonia

APC - Ammonia

The Ammonia Plant advanced control package uses three modules of Axens' latest generation multivariable controller MVAC. It is designed to maximize the benefits from the Ammonia Plant, in an environment with multiple constraints and complex multivariable interactions...

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APC- HF Alkylation

Specific Application for HF Alkylation Units

The HF Alkylation advanced control package uses Axens' latest generation multivariable controller MVAC.

It is designed to maximize the benefits from the HF Alkylation process in an environment with difficult and particularly slow, multivariable interactions...

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APC- H2SO4 Alkylation

A tailored application for H2SO4 Alkylation Units

The H2SO4 Alkylation advanced control package uses Axens' latest generation multivariable controller MVAC.

It is designed to maximize the benefits from the H2SO4 Alkylation process, in an environment with difficult and particularly slow, multivariable interactions...

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Documentation Center

Assets & Operation Optimization Services - Commercial Bulletin cadenas

APC - Commercial Bulletin cadenas

APC - Prime-G+ - Commercial Bulletin cadenas

APC - CCR - Commercial Bulletin cadenas

APC - Eluxyl - Commercial Bulletin cadenas