| 摘要 |
#CMT# #/CMT# Steam reforming of hydrocarbons in a reforming furnace comprising a combustion chamber with vertical refractory-lined walls (1, 2), a set of vertical reforming tubes (3) between the walls and burners mounted on the walls so as to produce radial flames parallel to the wall surface, where not all of the burners have the same power, comprises setting the power of each burner so as to avoid hot spots on the tubes. #CMT#USE : #/CMT# Steam reforming of hydrocarbons to produce synthesis gas. #CMT#ADVANTAGE : #/CMT# Heating of the tubes is optimized. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a side-fired reforming surface for carrying out the above process. 1, 2 : Vertical walls 3 : Tube 5, 6 : Groups of burners 7 : High-power burner 8 : Low-power burner. #CMT#CHEMICAL ENGINEERING : #/CMT# Preferred Process: The burners are arranged in vertical columns and horizontal rows. For a given column, the power of one group of burners (5) is set at a value above the mean power of the burners of this column and the power of another group of burners (6) is set at a value below the mean power of the burners of this column. For a given row (excluding the top and bottom rows), the burners (7, 8) are set alternately at above-mean power and below-mean power for the row. |
