C - Chemistry – Metallurgy – 01 – B
Patent
C - Chemistry, Metallurgy
01
B
48/25
C01B 3/24 (2006.01) C01B 3/38 (2006.01)
Patent
CA 1215230
ABSTRACT OF THE DISCLOSURE Referring to Figure 1 the hydrocarbon gas feedstream is partially reformed at elevated temperatures in indirect heat exchange with hot combustion gases in a direct fired primary reforming furnace (10) provided with a convection section (4) for recovery of combustion gas treat; and (b) the partially reformed feedstream (58) is then further reformed in the presence of an oxygen-containinq gas and steam in a secondary reformer (60) to form a secondary reformer gaseous effluent (62); the improvement which comprises heating a high pressure saturated steam (82) in a first steam superheating zone (80) by indirect heat exchange with at least a portion of said secondary reformer effluent gas (76) to form a first superheated steam stream (84); and (ii) further heating said first superheated steam in a second steam superheating zone (25) by indirect heat exchange with at least a portion of said primary reformer hot combustion gases to form a second superheated steam stream (36).
466030
Borden Ladner Gervais Llp
Exxon Research And Engineering Company
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