NOVELTY - Reduction of carbon dioxide emissions in a refinery comprises heating a hydrocarbon containing stream comprising a refinery off gas stream (10); cooling the reacted stream; producing a reformed stream (90) comprising hydrogen, carbon monoxide, steam, and carbon dioxide; reacting the carbon monoxide and steam in a water-gas shift reactor; separating carbon dioxide from the shifted stream; producing hydrogen containing fuel gas streams; and returning the hydrogen containing fuel gas stream to the refinery fuel gas header.    USE - Method for the reduction of carbon dioxide emissions in a refinery (claimed).    ADVANTAGE - The method does not require complex piping networks to gather flue gas and does not produce a carbon dioxide-rich exhaust gas as dioxide.    DETAILED DESCRIPTION - Reduction of carbon dioxide emissions in a refinery comprises:    (A) obtaining a refinery off gas stream (10) upstream from a fuel header in the refinery and down stream from a sulfur removal unit;    (B) heating a hydrocarbon containing stream comprising the refinery off gas stream, and producing a reacted stream (36) by catalytically reacting hydrogen with hydrocarbons and the sulfur compounds present within the hydrocarbon containing stream without oxygen so that the reacted stream contains saturated hydrocarbons and hydrogen sulfide formed from hydrogenation of the hydrocarbons and the sulfur compounds, respectively, or alternatively, catalytically reacting oxygen (28), steam (44), and the hydrocarbons and the hydrogen with the sulfur compounds so that the reacted stream contains additional hydrogen, saturated hydrocarbons, carbon monoxide, and the hydrogen sulfide;    (C) cooling the reacted stream, adsorbing the hydrogen sulfide in the reacted stream to produce a treated reacted stream and combining the treated reacted stream with a steam stream to produce a reactant stream (46);    (D) producing a reformed stream (90) comprising hydrogen, carbon monoxide, steam, and carbon dioxide, by subjecting the reactant stream to steam methane reforming in a steam methane reformer (48) fired by a fuel, where the steam methane reforming being carried out at 125-300 psia and at not less than 50-150 psia above fuel header pressure and at a steam to carbon ratio of 2-3.5 to produce reaction products from the steam methane reforming having a methane content of greater than or equal to 2 mol.%;    (E) reacting the carbon monoxide and steam contained in the reformed stream in a water-gas shift reactor such that a shifted stream is produced having a hydrogen and carbon dioxide content greater than that of the reformed stream and other constituents;    (F) separating carbon dioxide from the shifted stream to produce a carbon dioxide containing gas stream and a hydrogen containing gas stream having a greater concentration of the other constituents than the carbon dioxide containing gas stream;    (G) producing a first hydrogen containing fuel gas stream and a second hydrogen containing fuel gas stream from the hydrogen containing gas stream; and    (H) returning the first hydrogen containing fuel gas stream to the refinery fuel gas header and utilizing the second hydrogen containing fuel gas stream to supply part of the fuel to the steam methane reformer.    DESCRIPTION OF DRAWING(S) - The drawing is a schematic diagram of a steam methane reforming installation.    Refinery off gas stream (10)    Oxygen (28)    Reacted stream (36)    Steam (44)    Reactant stream (46)    Steam methane reformer (48)    Reformed stream (90)