초록 ▼

A compact concentric-tube catalytic reaction apparatus for converting distillable hydrocarbon feedstock or methanol to useful industrial gases, such as hydrogen and carbon monoxide, comprises an annular reaction chamber concentrically disposed around an internal burner chamber. An infrared burner as

A compact concentric-tube catalytic reaction apparatus for converting distillable hydrocarbon feedstock or methanol to useful industrial gases, such as hydrogen and carbon monoxide, comprises an annular reaction chamber concentrically disposed around an internal burner chamber. An infrared burner assembly vertically disposed within the burner chamber provides a uniformly radiating source for heat transfer to the reaction chamber. The burner chamber employs a convective section of enhanced thermal efficiency. The present invention eliminates the problems of flame impingement and local heat maldistribution associated with compact designs employing flame burners directly radiating to the reaction chamber wall.

대표청구항 ▼

Endothermic catalytic reaction apparatus comprising: (a) an axially extending reaction chamber, and an axially extending regenerative heat transfer chamber, (b) an internally disposed, axially extending burner chamber about which the reaction chamber extends, the burner chamber containing an infrare

Endothermic catalytic reaction apparatus comprising: (a) an axially extending reaction chamber, and an axially extending regenerative heat transfer chamber, (b) an internally disposed, axially extending burner chamber about which the reaction chamber extends, the burner chamber containing an infrared burner assembly, means defining a radiant chamber, and means defining a convection chamber wherein said burner chamber supplies endothermic reaction heat to the reaction chamber, said burner chamber defined by a generally cylindrical inner wall means of said reaction chamber, said burner chamber also including burner gas exhaust means associated therewith, (c) said axially extending reaction chamber being disposed generally concentrically about said burner chamber, said reaction chamber defined by said inner wall means which is exposed to burner gases within said burner chamber and also by a generally concentric cylindrical outer wall means exposed to hot product gases within said regenerative heat transfer chamber, there being a first space between said reaction chamber inner and outer wall means defining a generally annular chamber which is substantially filled with catalyst and which is a passageway for conducting reactant gases over said catalyst, (d) said axially extending regenerative heat transfer chamber disposed in a generally concentric arrangement about said reaction chamber, said regenerative heat transfer chamber defined by said outer wall means of the reaction chamber and by a generally concentric cylindrical outer shell means of the catalytic reaction apparatus, there being a second space between said outer wall means and said outer shell means defining a generally annular passageway for flow of said hot product gases, (e) said infrared burner assembly comprising an upper radiant burner portion and a lower burner stock portion, said radiant burner portion being vertically disposed within said radiant chamber of the burner chamber, and said burner stock portion defining an inner wall means of said convection chamber, (f) and wherein said radiant burner portion comprises a gas permeable support structure having an internal volume defining a burner core and wherein said support structure includes a ceramic fiber material defining a radiant skin enclosing a substantial portion on said support structure.