Patent ID: 6199835
Filing Date: 2001-03-13
Classification: B01J,C10G

Abstract:
A gas injector comprising a pressure reducing zone having gas entrance and exit ends said reducing zone terminating at its exit end in an orifice which opens into an entrance of an elongated longitudinal first gas expansion zone,said first gas expansion zone having gas entrance and exit ends at opposite ends of its longitudinal axis, an inner wall and a substantially constant cross-sectional area perpendicular to said axis, which area is larger than that of said orifice,said exit end of said first gas expansion zone opening into a gas entrance of a second gas expansion zone having gas entrance and exit ends at opposite ends of its longitudinal axis, an inner wall and a cross-sectional area perpendicular to said axis that increases from said entrance to exit, wherein said second zone entrance has a cross-sectional area larger than that of said first zone gas exit.