Other

Exxonmobil Research and Engineering Company

Tiax LLC

Dennis L Juedes

Charles E Benson

Peter J Loftus

Roberto O Pellizzari

Richard R Martin

Thomas M Rudy

Paul M Rodden

Earl Ray Wade

San Chhotray

James P Norton

San Chottray

A fired heater unit is disclosed having at least one radiant heating section with each of the at least one radiant heating section having a heating element located therein. The unit includes a convection section operatively connected to the at least one radiant heating section, wherein the convection section having at least one vertically oriented convection tube. Each of the at least one convection tube being operatively connected to the at least one radiant heating section. Each of the at least one convection tube includes an inner tube having process fluid flowing therethrough, wherein the process fluid being heated by the at least one radiant heating section, and an outer tube extending along a predetermined portion of the inner tube, wherein the outer tube is spaced from the inner tube to form a flow path therebetween.

Advanced fired heater unit for use in refinery and petro-chemical applications

An improved process for heating furnaces using a burner design that produces very low level of undesirable nitrogen oxides is provided. The process recirculates a large volume of furnaces gases back to the burner where it is mixed with fuel gas in a plurality of recirculation ports prior to combusting with air in a primary combustion zone. Dispersion of the fuel gas in the recirculated furnace gases is believed to result in lower peak flame temperatures and therefore minimizing the formation of the pollutants, such as nitrogen oxides.

Method and apparatus for heating a furnace

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Moneta, VA, United States of America

Dennis L Juedes