additional high-level heat. In plants that use wet chemical/solvent CO 2 recovery,
this heat is normally used to drive the solvent system, so the steam generator may
be omitted in these plants.
Treatment of the boiler feedwater (BFW) for the steam generator systems and
steam from hydrogen plants is critical. Table 5 summarizes the typical BFW
treatment requirements.
5
Equilibrium % CO
2 in Dry Gas
Steam/Carbon Ratio
10
15
30
100
Pressure, psig
200
300
400
500
Temperature, °F
25
20
Fig. 12 CO 2 slip equilibrium chart for steam/methane reforming of naphtha (After: Katalco
1970)
Hydrogen Production and Management for Petroleum Processing
593
this heat is normally used to drive the solvent system, so the steam generator may
be omitted in these plants.
Treatment of the boiler feedwater (BFW) for the steam generator systems and
steam from hydrogen plants is critical. Table 5 summarizes the typical BFW
treatment requirements.
5
Equilibrium % CO
2 in Dry Gas
Steam/Carbon Ratio
10
15
30
100
Pressure, psig
200
300
400
500
Temperature, °F
25
20
Fig. 12 CO 2 slip equilibrium chart for steam/methane reforming of naphtha (After: Katalco
1970)
Hydrogen Production and Management for Petroleum Processing
593