Patent ID: 6979358

Claim:
A vertical cyclone vessel having a tubular housing comprising of a tubular wall section provided with a tangentially arranged inlet for receiving a suspension of gas and solids and a cover which closes the upper end of the tubular wall section, wherein a gas outlet conduit protrudes from above and along the axis into the tubular housing to at most the horizontal position of the center of the tangentially arranged inlet, wherein the cover is arranged at a vertical distance (d 1 ) above the center of the tangentially arranged inlet opening and wherein the ratio of this distance (d 1 ) and the diameter of the tubular housing (d 2 ) is between 0.5 and 2 and wherein the gas outlet conduit protrudes at least distance (d 3 ) as measured from the cover into the tubular housing and wherein the ratio of this distance (d 3 ) and the distance (d 1 ) between the elevated cover and the center of the tangentially arranged inlet opening is between 0.1 and 0.6, wherein the ratio of the distance (d 1 ) and the diameter of the tubular housing (d 2 ) is between 0.5 and 1.5, wherein the gas outlet conduit protrudes at least distance (d 3 ) as measured from the elevated cover into the tubular housing, wherein the ratio of the distance (d 3 ) and the diameter (d 4 ) of the gas outlet conduit is at least 0.4, and wherein a dipleg is present at the lower end of the tubular wall section of the vertical cyclone, which dipleg is fluidly connected to the tubular wall section by means of a frustoconical wall section.