Abstract:
In one embodiment of the present invention a fluid bed reactor is provided, comprising:a housing, at least one tray disposed within the housing, at least one motor operatively connected to the at least one tray, wherein the motor rotates the at least one tray; and at least one wiper associated with at the at least one tray which directs product on a top surface of a respective tray down through at least one radial slot in each respective tray as each respective tray is rotated by the motor. At least one of the trays is at least partially perforated material which a gas to flow up out of the top surface of the tray, at least partially fluidizing product on the top surface of the tray.
Abstract:
Provided is an apparatus for producing carbon nanotubes. The apparatus includes a reaction chamber and a rotating member. The reaction chamber provides a reaction space in which metal catalysts and a source gas react with one another to produce carbon nanotubes. The rotating member increases fluidizing of the metal catalysts in the reaction space to increase productivity and raise the gas conversion rate, thereby reducing the price of carbon nanotubes and preventing adhering of metal catalysts to the sidewall of the reaction chamber.
Abstract:
A reaction apparatus for producing trichlorosilane in which metal silicon powder M is reacted with hydrogen chloride gas, thus generating trichlorosilane, includes: an apparatus body into which the metal silicon powder is supplied; and an ejection port for ejecting the hydrogen chloride gas into the apparatus body from the bottom part of the apparatus body, wherein a plurality of holed pieces having a through hole penetrating in the thickness direction and a plurality of pellets interposed between these holed pieces are stacked in a mixed state on the upper side of the ejection port.
Abstract:
A process of converting a loop reactor into multiple loop reactors comprising starting with a loop reactor comprising at least 8 vertical legs, at least two non-vertical conversion runs, each non-vertical run connected in fluid flow communication with two vertical legs; at least two feed inlets; and at least two continuous discharge conduits; disconnecting at least one connection of each conversion run; and reconnecting each conversion run in fluid flow communication with a different vertical leg in such a manner to form multiple loop reactors each having at least one feed inlet and at least one continuous discharge conduit.
Abstract:
An apparatus for treating flue gas using a single-stage gas dispersing tray, which removes sulfur dioxide from the flue gas exhausted from a thermal power plant. Oxidation air is injected into the lower portion of an absorption slurry riser so as to decrease the density of a gas-liquid (slurry) mixture rising through the absorption slurry riser, and a difference of densities of absorption slurry between the inside and the outside of an overflow weir serve as a driving force for circulating the absorption slurry positioned on and under the gas dispersing tray so as to maximize the amount of the circulating absorption slurry. Thereby, the apparatus has a high SO2 removal efficiency even at a low operating pH and a low absorber pressure drop.
Abstract:
Installation for the gas-phase polymerisation of at least one olefinic monomer, comprising a horizontal stirred reactor (1) consisting of an undivided space, provided with a number of gas feeds (13a-13) in the bottom section of the reactor (1) and a number of liquid feeds (7a-7) in the top section of the reactor (1) and at least two gas outlets (9, 11) at the top of the reactor (1), the installation being provided with means (43, 45) to regulate the discharge capacities of the gas outlets.
Abstract:
A process/apparatus is disclosed for continuously separating a liquid medium comprising diluent and unreacted monomers from a polymerization effluent comprising diluent, unreacted monomers and polymer solids, comprising a continuous discharge of the polymerization effluent from a slurry reactor through a discharge valve and transfer conduit into a first intermediate pressure flash tank with a conical bottom defined by substantially straight sides inclined at an angle to that of horizontal equal to or greater than the angle of slide of the slurry/polymer solids and an exit seal chamber of such diameter (d) and length (l) as to maintain a desired volume of concentrated polymer solids/slurry in the exit seal chamber such as to form a pressure seal while continuously discharging a plug flow of concentrated polymer solids/slurry bottom product of said first flash tank from the exit seal chamber through a seal chamber exit reducer with inclined sides defined by substantially straight sides inclined at an angle to that of horizontal equal to or greater than the angle of slide of the polymer solids which remain after removal of about 50 to 100% of the inert diluent therefrom to a second flash tank at a lower pressure.
Abstract:
A process/apparatus is disclosed for continuously separating a liquid medium comprising diluent and unreacted monomers from a polymerization effluent comprising diluent, unreacted monomers and polymer solids, comprising a continuous discharge of the polymerization effluent from a slurry reactor through a discharge valve and transfer conduit into a first intermediate pressure flash tank with a conical bottom defined by substantially straight sides inclined at an angle to that of horizontal equal to or greater than the angle of slide of the slurry/polymer solids and an exit seal chamber of such diameter (d) and length (l) as to maintain a desired volume of concentrated polymer solids/slurry in the exit seal chamber such as to form a pressure seal while continuously discharging a plug flow of concentrated polymer solids/slurry bottom product of said first flash tank from the exit seal chamber through a seal chamber exit reducer with inclined sides defined by substantially straight sides inclined at an angle to that of horizontal equal to or greater than the angle of slide of the polymer solids which remain after removal of about 50 to 100% of the inert diluent therefrom to a second flash tank at a lower pressure.
Abstract:
A process/apparatus is disclosed for continuously separating a liquid medium comprising diluent and unreacted monomers from a polymerization effluent comprising diluent, unreacted monomers and polymer solids, comprising a continuous discharge of the polymerization effluent from a slurry reactor through a discharge valve and transfer conduit into a first intermediate pressure flash tank with a conical bottom defined by substantially straight sides inclined at an angle to that of horizontal equal to or greater than the angle of slide of the slurry/polymer solids and an exit seal chamber of such diameter (d) and length (l) as to maintain a desired volume of concentrated polymer solids/slurry in the exit seal chamber such as to form a pressure seal while continuously discharging a plug flow of concentrated polymer solids/slurry bottom product of said first flash tank from the exit seal chamber through a seal chamber exit reducer with inclined sides defined by substantially straight sides inclined at an angle to that of horizontal equal to or greater than the angle of slide of the polymer solids which remain after removal of about 50 to 100% of the inert diluent therefrom to a second flash tank at a lower pressure.
Abstract:
A process/apparatus is disclosed for continuously separating a liquid medium comprising diluent and unreacted monomers from a polymerization effluent comprising diluent, unreacted monomers and polymer solids, comprising a continuous discharge of the polymerization effluent from a slurry reactor through a discharge valve and transfer conduit into a first intermediate pressure flash tank with a conical bottom defined by substantially straight sides inclined at an angle to that of horizontal equal to or greater than the angle of slide of the slurry/polymer solids and an exit seal chamber of such diameter (d) and length (I) as to maintain a desired volume of concentrated polymer solids/slurry in the exit seal chamber such as to form a pressure seal while continuously discharging a plug flow of concentrated polymer solids/slurry bottom product of said first flash tank from the exit seal chamber through a seal chamber exit reducer with inclined sides defined by substantially straight sides inclined at an angle to that of horizontal equal to or greater than the angle of slide of the polymer solids which remain after removal of about 50 to 100% of the inert diluent therefrom to a second flash tank at a lower pressure.