PRESSURE VESSEL, ENGINEERING & FABRICATION

ASME Reactor Vessel

  • Client

    ENERKEM

  • Industry

    Energy

  • Equipment

    ASME Reactor Vessel

  • Materials

    Steel

  • Our Service

    Engineering & Fabrication

01

OVERVIEW

260,000 lbs Reactor Pressure Vessel

The client designed a vertical Reactor Pressure Vessel for use in their Alberta facility using ASME standards, with parameters 6’-8” ID x 40’-0” long, 1200 psi, 600F.  It is a critical part of their process and a first for their engineering team.  A removable tube bundle (350 tubes of 1” sch.160 x 25’-0” long) is contained in the vessel and a pair of girth body flanges are needed for this accessibility.  

This high level of pressure requires a 3” thick carbon steel shell with SS316L 3/16’’ internal cladding, 3.5” thick dished heads, 18” thick girth flanges, yielding an overall vessel weight of 260,000 lbs.  Due to the size and complexity of this vessel, there is a high level of uncertainty because only about 70% of the mechanical design had been done.  They required the services of a pressure vessel fabrication company to finalize the remaining 30% mechanical design work and complete all the manufacturing.

  • Client

    ENERKEM

  • Industry

    Energy

  • Equipment

    ASME Reactor Vessel

  • Materials

    Steel

  • Our Service

    Engineering & Fabrication

Dimartech Pressure vessel Rector ASME
Reactor Vessel
Dimartech - industrial processing equipment
Dimartech engineering

02

APPROACH

Optimized mechanical design

DIMARTECH took over the responsibility of the remaining design tasks and provided the CLIENT with several proposals gradually over the course of the contract.  Both teams jointly collaborated in optimizing the mechanical design.  The 36,000 lbs internal tube bundle was designed with jigs and support frames for stability during welding.  The non-standard 6’-8’’ diameter girth flanges were designed as welding neck flanges, fully welded, PWHT, and machined for Flexitallic metal core gaskets.  All internal surfaces were weld overlayed with SS316L filler metal where needed.

Reactor - AMSE - Dimartech
Reactor Vessel

03

DELIVERY

Delivery of Design-Build

The client benefitted from time savings by allocating their engineering team to other tasks with minimal supervision of the entire manufacturing process.  The successful completion and delivery of this design-build (design + manufacturing) contract provided the CLIENT with an important milestone in their overall plant start-up and has contributed to their growing achievements.

During the final stages of manufacturing, DIMARTECH’s team also assisted the CLIENT to successfully complete their project with the joint review and approval of start-up and commissioning procedures, bolt torqueing of non-standard flanges, lifting and rigging analysis, loading and delivery drawings.

Dimartech - industrial processing equipment
Dimartech Pressure vessel Rector ASME
Dimartech engineering

GET A FIRM ESTIMATE FOR YOUR PROJECT

Pre-Fabrication Analysis Plan

Related Projects

Duis autem vel eum iriure dolor in hendrerit in vulputate molestie dolore feugiat nulla facilisis at vero eros et accumsan
The CLIENT required a pressure vessel manufacturer to design and build seven (7) primary and secondary separator pressure vessels in SS304L stainless steel. Girth flanges allow for safe and complete access for commissioning and maintenance purposes for the plant personnel.
Pressure Swing Adsorption is a chemical separation process in which a mixture of gases is passed through a bed of adsorbent media at high pressure. The CLIENT required a pressure vessel manufacturer to construct a set of multiple adsorbent vessels.
The CLIENT needed a fabricator to build a standalone modular unit for repeatability and efficiency to prepare their entry into the market. Their prototype model had evolved over time, and the challenge lies in establishing manufacturing tolerances and dimensions to improve on welding sequences.