.TransiEnt.Producer.Gas.SteamMethaneReformerSystem.SMRSystem_noH2Loop

Information

1. Purpose of model

This model represents typical setup of a steam methane reformer system with enough hydrogen in the feed.

2. Level of detail, physical effects considered, and physical insight

The feed is preheated, mixed with preheated steam and the higher hydrocarbons are decomposed. Thereafter, the steam methane reformer produces hydrogen out of methane and steam. Afterwards, the hydrogen yield is increased in the water gas shift reactor. In the end, the stream is cooled, dried and purified in a

pressure swing adsorption reactor (PSA). In a real system there are many more heat exchangers but most of the models work simplified and thus independent of the temperature. Necessary for this process is heat for the preheaters and the steam methane reformer which is usually delivered by a burner in which the PSA off-

gas is burned.

3. Limits of validity

The model is valid if there is enough hydrogen in the stream. The applicability of the submodels should be checked as well before using this model.

4. Interfaces

gasPortIn: real gas inlet

gasPortOut_offGas: real gas outlet for the PSA off-gas

gasPortOut_hydrogen: real gas outlet for the produced hydrogen

heatFeedPreheater: heat port for the feed preheater

heatSteamPreheater: heat port for the steam preheater

heatSMR: heat port for the steam methane reformer

5. Nomenclature

(no elements)

6. Governing Equations

(no remarks)

7. Remarks for Usage

(no remarks)

8. Validation

Tested in check models "TransiEnt.Producer.Gas.SteamMethaneReformerSystem.Check.TestSMRSystem_noH2Loop" and "TransiEnt.Producer.Gas.SteamMethaneReformerSystem.Check.TestSMRSystem_noH2Loop"

9. References

(no remarks)

10. Version History

Model created by Carsten Bode (c.bode@tuhh.de) in March 2017

Model revised by Carsten Bode (c.bode@tuhh.de) in Apr 2018 (fixed for update to ClaRa 1.3.0)

Contents

Name	Description
CostSpecsGeneral	General Cost Record
ControllerH2OForReformer	Controller for steam for reformer