Steady Modeling for an Ammonia Synthesis Reactor Based on a Novel CDEAS-LS-SVM Model

Table 2

Auxiliary variables of model of net value of Ammonia.

List	Symbols	Name	Unit
1	𝑅H/N	H/N ratio	%
2	𝐴CH4	Methane concentration in recycled synthesis gas at the reactor inlet	Mole ratio
3	ANH3	Ammonia concentration in recycled synthesis gas at the reactor inlet	Mole ratio
4	𝑃𝑆	System pressure	Mpa
5	𝐹𝑄	Recycle gas flow rate	Nm^3/h
6	𝐹𝑄1	Quench gas flows of axial layer	Nm^3/h
7	𝐹𝑞2	Cold quench gas flows of 1st radial layers	Nm^3/h
8	𝐹𝑞3	Quench gas flows of 2nd radial layers	Nm^3/h
9	𝐹𝑞4	Hot quench gas flows of 1st radial layers	Nm^3/h
10	𝑇𝐴	Hot-spot temperatures of axial bed	°C
11	𝑇𝑅1	Hot-spot temperatures of radial bed I	°C
12	𝑇𝑅2	Hot-spot temperatures of radial bed II	°C
13	𝑇EO	Outlet gas temperature of evaporator	°C