摘要:
A fluidized bed reactor comprising a reaction column having a fluid portion; a gas inflow means for flowing a gas upwardly from the fluid portion of the reaction column; a particle feed means for feeding particles to the fluid portion of the reaction column; a cyclone capable of separating particles from the gas flowing upwardly from the fluid portion of the reaction column, the cyclone being located within the reaction column and being in communication with the gas flowing upwardly, wherein the cyclone comprises a cyclone body having an inlet, a gas outlet, and a particle drop port; and a particle discharge pipe having an upper part connected to the particle drop port of the cyclone body, and a lower part, wherein the particle discharge pipe is located substantially outside of the reaction column.
摘要:
The invention relates to a catalytic reactor including a chamber (1) and separation means (2) arranged inside the chamber (1), said separation means defining at least one reaction area (3) and at least one regeneration area (4), the reaction area (3) being supplied by a reaction flow supply device (15, 16) and connected, at the outlet thereof, to a first gas tapping device (13), the regeneration area (4) being supplied by a regeneration flow supply device (17) and connected, at the outlet thereof, to a second gas tapping device (10), the reactor being suitable for comprising a fluidized bed of catalyst particles (5) in the reaction area (3), the separation means (2) being suitable for enabling the catalyst particles to pass from the reaction area (3) to the regeneration area (4), and the reactor being suitable for comprising a device for feeding catalyst particles into the regeneration area (4), thereby enabling the return thereof to the reaction area (3).
摘要:
There is provided a method for separating liquid from a solid-liquid mixture containing solid particles and liquid. The method is characterized in that it comprises a classification step of subjecting the solid-liquid mixture to wet classification so as to obtain a mixture containing solid particles each having a particle size larger than a predetermined particle size and the liquid, and a filtration step of subjecting the above obtained mixture to a cross-flow filtration so as to recover the liquid.
摘要:
A method for preventing or reducing clogging of a fines ejector in a gas-phase olefin polymerization process is disclosed. The process involves injecting a liquid into the motive gas stream entering the fines ejector.
摘要:
The present invention relates to an apparatus and process for the gas phase polymerisation of olefins, the apparatus comprising: a) a reaction zone comprising a grid at its base, b) an inlet located in the lower half of the reaction zone for introduction of a reaction gas to the reaction zone, c) an outlet located in the upper half of the reaction zone for removal of the reaction gas from the reaction zone, and d) a solids separation unit having an inlet fluidly connected to the outlet for removal of the reaction gas from the reaction zone, characterised in that the inlet of the solids separation unit is located at a vertical height lower than the outlet for removal of reaction gas from the reaction zone and such that the angle to the horizontal of a straight line drawn between the inlet of the solids separation unit and the outlet for removal of reaction gas from the reaction zone is greater than 20°.
摘要:
The present invention is related to the separator for separating solid particles from a vapour-gas mixture, and particularly to the structure of a dust chamber (2) as installed in the plant for processing fossil fuels or materials containing organic matter. The dust chamber (2) comprises a main body (4) having an inlet (14) for a vapour-gas mixture containing semi-coke particles and an outlet chute (9) for removal of semi-coke particles, wherein the upper part of the main body (4) is connected to the inlet of a cyclone (3) for removal of fine semi-coke particles from the vapour-gas mixture and wherein a screw conveyor unit (13) is connected to the bottom part of the main body (4). Said main body (4) is covered with an external insulation (5). Electrical trace heating cables (7) are in contact with the external surface of the main body (4) of the dust chamber (2).