C. N. Trades Limited

C. N. Trades LimitedC. N. Trades LimitedC. N. Trades Limited

C. N. Trades Limited

C. N. Trades LimitedC. N. Trades LimitedC. N. Trades Limited

Process Design and Simulation for the Oil and Gas Industry

Process Design and Simulation for the Oil and Gas IndustryProcess Design and Simulation for the Oil and Gas IndustryProcess Design and Simulation for the Oil and Gas Industry

Process and process safety engineering

services across the full project lifecycle.

Get in Touch

Process Design and Simulation for the Oil and Gas Industry

Process Design and Simulation for the Oil and Gas IndustryProcess Design and Simulation for the Oil and Gas IndustryProcess Design and Simulation for the Oil and Gas Industry

Process and process safety engineering

services across the full project lifecycle.

Get in Touch

About

 C. N. Trades Limited is the consultancy of Chukwunwike Nzewi CEng MIChemE.


Over fourteen years of process engineering experience in the wider oil and gas industry, covering all stages of the project lifecycle on greenfield and brownfield projects, from concept and feasibility studies through FEED to detailed design. The work spans offshore and onshore facilities, across a variety of projects and roles with both operators and engineering contractors.


Work is taken on directly or through agencies, on site or remotely, for onshore and offshore facilities. Assignments are not limited to the UK.

Capability

Process Design

Process Simulation

Process Simulation

 Heat and mass balances, PFDs and P&IDs, line sizing, hydraulics, equipment sizing and specification, datasheets and design basis documents. 

Process Simulation

Process Simulation

Process Simulation

 Steady-state and dynamic modelling in Aspen HYSYS and UniSim Design, and flare system analysis in FlareNet. 

Process Safety

Process Simulation

Process Safety

 Relief and blowdown design, flare and vent systems, hazardous area classification, and the supporting safety documentation. 

Safety Studies

Technical Review

Process Safety

 HAZOP participation, including scope preparation, close-out of actions and independent process engineer role. 

Technical Review

Technical Review

Technical Review

 Independent review of process deliverables, and support or mentoring for less experienced engineers within a client team. 

Availability

Engagements are interim or project-based: filling a gap in a client team, taking a defined scope end to end, or providing independent review of critical deliverables.


Work can be delivered remotely or on client sites. Rates, terms and scope are agreed and documented prior to work commencing.


  •  Short-notice and short-duration assignments considered.
  •  Professional indemnity and public liability insurance in place.
  •  Available direct or through agencies, outside IR35 only.

Contact Us

GET IN TOUCH

GET IN TOUCH

GET IN TOUCH

 For enquiries about availability, scope or rates, email a short description of the work and your timescale. 

EMAIL

GET IN TOUCH

GET IN TOUCH

c.nzewi@cntradeslimited.com

BASED IN

GET IN TOUCH

BASED IN

Aberdeen, Scotland

Available UK-wide and overseas

Copyright © 2026 C. N. Trades Limited.

Registered in Scotland, Company Number: SC705090.

Registered Office: 5 South Charlotte Street, Edinburgh, EH2 4AN.

VAT Registration Number: 430 5149 27. 

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