gPROMS Reactor Gas Cooling Simulation

1. Project Overview The objective is to develop a robust process simulation model using Siemens gPROMS to simulate the cooling of reactor exit gas from a methane conversion process. The simulation must model the cooling of the gas stream from an inlet temperature of 1200°C to a target outlet temperature of 500°C under Normal operating conditions.
2. Gas Stream Contents (Normal Condition) The model shall be based on the "Gas Outlet" stream resulting from a 18.000 kg/hr Methane feed. The specific composition to be modelled is as follows:
Reactor Outlet Stream Composition (Normal Condition)
Component Molecular Weight Mass Flow (kg/hr) Molar Flow (kmol/hr)
Methane (CH4) 16 4.140 0.259
Hydrogen (H2) 2 3.378 1.689
Acetylene (C2H2) 26 0.225 0.009
Propane (C3H8) 44 0.381 0.009
Carbon (Solid) 12 9.875 0.823
Total -- 18.000 2.788

3. Scope of Work The supplier is required to:
• Develop a steady-state or dynamic (as applicable) heat exchanger model within the Siemens gPROMS environment.
• Configure the model to accurately reflect the thermodynamic behaviour of the gas mixture at high temperatures (up to 1200°C).
• Perform the simulation to achieve the specified cooling profile.
4. Deliverables The successful supplier must provide the following:
• GProms Process Flowsheet: A clear diagram showing the cooling stage and relevant process boundaries.
• Technical Report: A comprehensive document containing:
o Heat exchanger performance data (e.g., heat duty, etc.).
o A summary of physical properties for every stream (inlet and outlet).
• Native File: The original, functional Siemens gPROMS file used for the simulation.
5. Timeline and Proposal Requirements
• Completion Date: This work must be completed and all deliverables submitted within two weeks of the project award.
• Proposal Content: The supplier must stipulate the following in their response:
o The total number of man-hours estimated to complete the work.
o The overall fixed cost for the project.


I will regard the task as complete once the model runs without errors, reproduces the sample output, and the documentation has been provided