Abstract:
An apparatus for the selective catalytic oxidation of carbon monoxide contained in a hydrogen-rich mixed gas flow, includes a reaction chamber filled with a catalyst and a cooling chamber through which a coolant flows formed between successive plates. The plates have openings that form inlet and outlet channels for the mixed gas flow and the coolant. An oxidizing gas is supplied directly into the inlet channel for the mixed gas flow. For two-stage apparatuses, a separating plate without an opening for the inlet channel for the mixed gas flow is arranged between the first and the second stage, and an apparatus for supplying the oxidizing gas to the second stage is passed into the outlet channel for the mixed gas flow from the first stage.
Abstract:
An apparatus and method for mixing and dispensing a powder material in an aqueous solution wherein the powder material is premixed into solution by a spreader. The premix solution is subsequently dispensed in a diluted aqueous stream by a venturi proportioner. In a preferred manner a hopper is provided for the powder material which is partially positioned in a mixing chamber. A valve and spreader are positioned at the base of the hopper.
Abstract:
The storage tank of the invention for an easily polymerizable compound is a storage tank having an acceptance piping and a delivery piping and is characterized by having a circulation line which directly connects the acceptance piping to the delivery piping or having circulation lines which respectively connect the acceptance piping to the storage tank and the storage tank to the delivery piping; the method of storing of the invention is characterized by storing an easily polymerizable compound in the storage tank while circulating the compound in the storage tank through the circulation line(s); the method of pipe jointing and apparatus therefor of the invention are a method of jointing pipes fitted to a handling apparatus in a production apparatus, storage apparatus, or the like for the purpose of transporting a corrosive liquid, the method being characterized in that the pipes are jointed with flanges, bolts, and nuts made of a material having resistance to corrosion by the corrosive liquid; the process for (meth)acrylic acid compound production of the invention is a process for producing and/or purifying a (meth)acrylic acid compound, and is characterized in that the temperature of a purified (meth)acrylic acid compound obtained which is being supplied to a storage tank is regulated so as to be not higher than the temperature of the purified (meth)acrylic acid compound residing in the storage tank; and the process of the invention for producing an easily polymerizable compound which is a (meth)acrylic acid compound is characterized in that the temperature of a (meth)acrylic acid compound-containing liquid which has been discharged as an off-specification product and is being supplied to a storage tank is regulated so as to be not higher than the temperature of the off-specification liquid stored in the storage tank.
Abstract:
A system for filling a substrate having at least one chamber with a liquid sample is provided. The system in one embodiment includes a substrate defining a network of passageways including at least one chamber for the liquid sample, and an adapter. The adapter includes a fill reservoir for the liquid sample, a vacuum port for attachment to a vacuum source, and at least two channels. One channel allows a vacuum to be imparted to the network, and the other channel allows the liquid sample to be introduced into the network. The system also includes a mechanism that sequentially closes and opens at least one of the channels so that a vacuum can first be introduced to the substrate and thereafter the liquid sample introduced to the substrate for permitting the vacuum to urge the liquid sample to flow from the fill reservoir into the substrate. An apparatus for positioning a substrate with a plurality of sample detection chambers in a detection unit is also provided.
Abstract:
A method comprises continuously supplying an alcohol to a pressurized reaction system, pressurizing carbon monoxide with a compressor 8 attached to a first feed line 22, for continuously supplying carbon monoxide to the reaction system via a second feed line 23 with a reference flow rate F, and converging excess carbon monoxide in the reaction system in the first feed line via a branched circulation line 24 for allowing to react alcohol with carbon monoxide. The reference flow rate F in the second feed line 23 is a total rate of a reference consumption flow rate Fcs in the reaction and a flow rate F1 in excess rate over a fluctuation consumption flow rate ΔFcv in the reaction system (F=Fcs+F1, F1>ΔFcv). According to the pressure fluctuation of the gaseous phase in the reaction system, the flow rate in the circulation line 24 is controlled to a flow rate Fr=F1−ΔFcv and the feed flow rate in the first feed line 22 is controlled to a flow rate Fsu=Fcs+ΔFcv, for compensating a consumption rate variation in the reaction system with the feed flow rate of carbon monoxide. This ensures discharge inhibition of the gaseous reactant in a liquid phase pressurized reaction system (such as carbonylation reaction system) and effective utilization of the reactant for the reaction.
Abstract:
The present technique provides for the use of spectroscopic probes, such as Raman probes, within the conduits of a polyolefin production system. The Raman probe or other spectroscopic probes may be used to obtain spectroscopic measurements of the contents of the conduits. The spectroscopic measurements may be processed and analyzed to determine the composition of the conduit contents. In addition, the spectroscopic measurements may be used in conjunction with correlations or other statistical models to determine one or more properties of interest of a constituent of the conduit contents. One or more processes upstream and/or downstream of the conduit may be adjusted in response to the determined composition or composition properties.
Abstract:
A fluid additive delivery system includes a container for a fluid additive gel. The container has one or more openings to allow contact of the fluid with the gel to cause one or more additive components in the gel to be released into the fluid.
Abstract:
An apparatus and method for mixing and dispensing a powder material in an aqueous solution wherein the powder material is premixed into solution by a spreader. The premix solution is subsequently dispensed in a diluted aqueous stream by a venturi proportioner. In a preferred manner a hopper is provided for the powder material which is partially positioned in a mixing chamber. A valve and spreader are positioned at the base of the hopper.
Abstract:
A method, a module, and a device for gas-liquid contacting. The liquid is sent, in the presence of the gas, in jet form in a first direction onto a wall inclined at an angle of 35-55 degrees with respect to the first direction, the wall dispersing the liquid jet into the gas. The module includes a structure (23, 25) for sending a liquid jet in a first direction, a structure (21) for creating a gas flow, and a wall (11) inclined at an angle of 35-55 degrees.
Abstract:
A polymerization method in which a first liquid and a second liquid are mixed in a gas phase and polymerized in the form of droplets is disclosed, wherein a polymerizable monomer and a polymerization initiator are each contained in at least one of the first liquid and the second liquid, and at least one of the first liquid and the second liquid is injected in a spatially expanding film shape. By employing the polymerization method of this invention, high-quality polymer can be efficiently produced in large quantity by the droplet polymerization even using a polymerizable monomer with a rapid reaction rate.