Modular Offer

A modularization strategy offers ascendant advantages versus on-site manufacturing. During the last 40 years, Axens Solutions, through the acquisition of Prosernat in 2018, has supplied over 500 modular units, both upstream and downstream, providing tailor-made designs based on inlet feed conditions and meeting outlet specifications.

The purpose of modularization is to provide a completely prefabricated modular unit, thus minimizing site works. One unit is composed of several Pre-Assembled Units (PAU’s) interconnected through Pre-Assembled Rack (PAR). Each PAU is composed of several assembled Modules.

Construction of Modules is performed away from the final project in a specialized workshop or yard remote site and equipped with suitable manufacturing and personnel capacities. Shape, size, and weight of each module are optimized according to transportation constraints up to final project site.

“Modularization” includes : steel structure, piping & mechanical activities, electricity & intrumentation and transportation to final project site. As a result, on site works is reduced to civil engineering and modules assembly.


Why choose Module Units ? 

The delivery of a Modular Unit is a key choice in the following contexts :

  • Remote areas, with lack of resources and construction means, and lack of manpower,
  • Extreme climates, where working possibilities are restricted by seasonal constraints,
  • Lack of labor quality and availability,
  • Offshore sites, where on-site manufacturing is hardly possible and plot area optimization is compulsory,
  • Existing plants, where on-going operations are an obstacle to safe on-site manufacturing,
  • Places where letting site access open to workers and trucks is a security concern.


Axens Solutions Advantages

Axens Solutions modules offer the following advantages:

  • Shortened schedules: up to 25% schedule reduction is achievable during project execution when modular construction is considered. The major schedule reduction is obtained because the module construction can be performed at the same time as the construction phase on-site. By the time the modular unit reaches the owner’s site, the field is ready for module installation and connection with existing facilities.
  • Cost savings: by maximizing workshop construction and assembly, full advantage is taken from an efficient and organized work progression. 40 to 100% higher labor productivity is usually achievable and supervision time with a trained manpower is reduced accordingly. Cost savings are also achieved on field, where a modular unit requires less plot area and simpler foundation than a similar stick built unit.
  • Improved safety requirements: most of the labor intensive tasks are achieved in a workshop or on a yard chosen for its favorable and efficient working conditions. Construction permits are not necessary and there is no interaction with on-going site operations, it greatly reduces owner’s safety and security concerns.


Case Study - Total Antwerp Refinery Off-Gas Project : A Modular Approach

The project was aimed at the recovery and valorization of significant volumes of  high value components  for steamcracking (NC3) that were burned as fuel gas at the refinery in Antwerp, Belgium (TRA). The modular approach was successfully used in this project (scope : Modules and loose equipments for GSU, Caustic Unit, Dryers, COS / RSH removal, Arsine & mercury removal, Compressor filter and chiller vessels), and conducted nearby the site. Modularisation represented 20 modules for a total weight of 2,300 tons, 8 columns, and 3,300 m3 of concrete.


Aftersales Services

Axens Solutions is dedicated to provide a wide range of aftersales services including: field studies, revamping, troubleshooting, warranties, operational technical support, training, start-up & commissioning assistance, training and spare parts management.

Connect'In™ - Improve your unit profitability by keeping track of your Unit's KPIs in real time

Connect'In™, a service provided by Axens Horizon, is a monitoring service for refinery units.

This online solution automatically collects data from the refinery, with the highest standards of cyber security, and converts them into normalized KPI using Axens Horizon high-fidelity models in real-time.

Learn more about Connect'In