Abstract:
A tube supporting device is described which in a preferred embodiment comprises ferrules (1) located on the tubes (2), brace means (3) connecting the ferrules (1) and cleats (7) connecting rows of tubes (2). The brace means (3) may be held in position by means of a retaining band (8) which itself is located in position by a stave (9). The support structure is capable of being assembled as the tube bundle is assembled.
Abstract:
A method and apparatus for generating gas for a processing system is provided. In one embodiment, an apparatus for generating gas for a processing system includes a canister having at least one baffle disposed between two ports and containing a precursor material. The precursor material is adapted to produce a gas vapor when heated to a defined temperature at a defined pressure. The baffle forces a carrier gas to travel an extended mean path between the inlet and outlet ports. In another embodiment, an apparatus for generating gas includes a canister having a tube that directs a carrier gas flowing into the canister away from a precursor material disposed within the canister.
Abstract:
Disclosed is a microsize driving device in which falling of track proteins from an arrangement of motor protein molecules arranged on a linear track groove provided on a substrate is suppressed and utilization of kinetic energy of track proteins as a driving energy is made possible by controlling the moving direction to a single direction. Namely, provided is a microsize driving device which comprises a substrate, an arrangement of motor protein molecules such as, for example, kinesin molecules deposited on the bottom of a linear track groove provided thereon and track proteins such as, for example, microtubules disposed thereon and is characterized in that the said linear track groove has side surfaces shaped in such a structure as to permit a linear movement of the track proteins moving in a certain specific direction but to inhibit the track proteins moving in the reverse direction thereto causing reversion for the movement in the above mentioned specific direction.
Abstract:
A precursor and method for filling a feature in a substrate. The method generally includes depositing a barrier layer, the barrier layer being formed from pentakis(dimethylamido)tantalum having less than about 5 ppm of chlorine. The method additionally may include depositing a seed layer over the barrier layer and depositing a conductive layer over the seed layer. The precursor generally includes pentakis(dimethylamido)tantalum having less than about 5 ppm of chlorine. The precursor is generated in a canister having a surrounding heating element configured to reduce formation of impurities.
Abstract:
The present invention provides an apparatus for manufacturing activated carbon fiber, which enables continuous production with high productivity. This apparatus is configured in a U-shape and comprises the first vertical furnace, the second vertical furnace, and the connecting portion to connect both furnaces at the lower parts. This apparatus employs neither the air curtain method nor the water seal method that requires drying process to shut off air from the furnace. In this apparatus, raw materials are introduced from the inlet on the upper part of the first furnace. Then they are subjected to pyrolysis, carbonization, and activation as they pass through the first furnace, connecting portion and the second vertical furnace. Finally they are taken up from the outlet on the upper part of the second furnace to be an active carbon fiber product.
Abstract:
A heated catalyst support device for a reactor including a reactor vessel containing a bed of catalyst particles. The device includes a permeable support plate having a channel extending therethrough, where the support plate is adapted to contact the bed of catalyst particles. The device further includes a heating element extending through the channel in the support plate. A method for starting up a water gas shift reactor is provided that includes applying heat to the bed of catalyst particles using the heating element, measuring a temperature in the bed of catalyst particles. and starting up the water gas shift reactor when the temperature exceeds a saturation temperature for a desired operating pressure.
Abstract:
The present invention relates to methods for selectively converting oxygenates to light olefins, preferably ethylene and propylene, in which desirable carbonaceous deposits are maintained on a total reaction volume of catalyst by totally regenerating only a portion of the total reaction volume of catalyst and mixing the regenerated portion with the unregenerated total reaction volume of catalyst.
Abstract:
Disclosed is a batch-type polyester polymerization apparatus, which is manufactured by assembling a conventional batch-type apparatus with a thin film tower. The batch-type polyester polymerization apparatus is advantageous in that oligomer is polymerized while forming a polyester thin film on each inclined plate of a thin film tower, and a polycondensation reaction is conducted in a polycondensation reactor as well as the thin film tower, thus greatly reducing polymerization time.