986 results about "Removal Units" patented technology

Systems for converting a carbonaceous feedstock into a plurality of gaseous products are described. The systems include, among other units, two separate gasification reactors to convert a carbonaceous feedstock in the presence of an alkali metal catalyst into the plurality of gaseous products including at least methane. Each of the gasification reactors may be supplied with the feedstock from a single or separate catalyst loading and/or feedstock preparation unit operations. Similarly, the hot gas streams from each gasification reactor may be purified via their combination at a heat exchanger, acid gas removal, or methane removal unit operations. Product purification may comprise trace contaminant removal units, ammonia removal and recovery units, and sour shift units.

Systems to convert a carbonaceous feedstock into a plurality of gaseous products are described. The systems include, among other units, four separate gasification reactors for the gasification of a carbonaceous feedstock in the presence of an alkali metal catalyst into the plurality of gaseous products including at least methane. Each of the gasification reactors may be supplied with the feedstock from a single or separate catalyst loading and/or feedstock preparation unit operations. Similarly, the hot gas streams from each gasification reactor may be purified via their combination at a heat exchanger, acid gas removal, or methane removal unit operations. Product purification may comprise trace contaminant removal units, ammonia removal and recovery units, and sour shift units.

Systems to convert a carbonaceous feedstock into a plurality of gaseous products are described. The systems include, among other units, four separate gasification reactors for the gasification of a carbonaceous feedstock in the presence of an alkali metal catalyst into the plurality of gaseous products including at least methane. Each of the gasification reactors may be supplied with the feedstock from a single or separate catalyst loading and/or feedstock preparation unit operations. Similarly, the hot gas streams from each gasification reactor may be purified via their combination at a heat exchanger, acid gas removal, or methane removal unit operations. Product purification may comprise trace contaminant removal units, ammonia removal and recovery units, and sour shift units.

Systems to convert a carbonaceous feedstock into a plurality of gaseous products are described. The systems include, among other units, three separate gasification reactors for the gasification of a carbonaceous feedstock in the presence of an alkali metal catalyst into the plurality of gaseous products including at least methane. Each of the gasification reactors may be supplied with the feedstock from a single or separate catalyst loading and/or feedstock preparation unit operations. Similarly, the hot gas streams from each gasification reactor may be purified via their combination at a heat exchanger, acid gas removal or methane removal unit operations. Product purification may comprise trace contaminant removal units, ammonia removal and recovery units, and sour shift units.

An unnecessary component such as acne is removed completely from a predetermined structure such as a face in a photograph image without manual operation and skills. An acne removal unit fits to a face region as the structure in the image a mathematical model generated according to a statistical method such as AAM using sample images representing the structure without the component to be removed, and an image reconstruction unit reconstructs an image of the face region based on parameters corresponding to the face region obtained by the fitting of the model. An image is then generated by replacing the face region with the reconstructed image. Since the mathematical model has been generated from the sample images of human faces without acne, the model does not include acne. Therefore, the reconstructed face image generated by fitting the model to the face region does not include acne.

An inspection system is configured for use with a conveyer apparatus including carrier bars. Each carrier bar conveys pellet-shaped articles along a predetermined path. The inspection system includes at least one camera unit for sensing a predetermined characteristic of the pellet-shaped articles, a removal unit, and a controller. The removal unit, downstream from the at least one camera unit, removes selected pellet-shaped article(s) from the carrier bar(s) depending on whether the characteristic is sensed by the at least one camera unit. The controller is in communication with the at least one camera unit and the removal unit. The controller provides a signal to the removal unit in accordance with the sensed characteristic. The removal unit includes a rotatable ejection drum having extended vacuum nozzles along its length, equal to the number of articles conveyed in each carrier bar. Each vacuum nozzle selectively removes article(s) from the carrier bar(s) by suction.

A process and apparatus for the decontamination of gaseous contaminants (especially oxygen, carbon dioxide and water vapor) from hydride gases (including their lower alkyl analogs) down to <=100 ppb contaminant concentration are described. The critical component is a high surface area metal oxide substrate with reduced metal active sites, which in various physical forms is capable of decontaminating such gases to <=100 ppb, <=50 ppb or <=10 ppb level without being detrimentally affected by the hydride gases. The surface area of the substrate will be >=100 m2/g, and preferably 200-800 m2/g. Oxides of various metals, especially manganese or molybdenum, can be used, and mixtures of integrated oxides, or one type of oxide coated on another, may be used. The substrate is preferably retained in a hydride-gas-resistant container which is installed in a gas supply line, such as to a gas- or vapor-deposition manufacturing unit. The invention provides final decontamination for hydride gas streams intended for gas- or vapor-deposition formation of high purity LED, laser (especially blue laser), electronic, optical or similar products, and can be used in combination with upstream preliminary decontamination process and/or upstream or downstream solid particulate removal units.

A system for sequestering carbon emissions from a fuel combustor generally includes a combustion gas extraction module for extracting combustion gas from a fuel combustor and a greenhouse facility for receiving the extracted combustion gas and having at least one vegetation supporting soil bed for absorbing carbon dioxide from the received combustion gas. The extraction module includes a particulate removal unit for removing pollutants from the extracted combustion gas and a heat exchanger in downstream fluid communication with the particulate removal unit for cooling the extracted combustion gas.

Provided is a content distribution system that prevents different keys to be derived between an encryption apparatus and a decryption apparatus. A random-number generating unit 112d, in an encryption apparatus 110d, generates a random number s, and a first function unit 113d generates a functional value G(s) of the random number s, and generates a verification value a and a shared key K from the functional value G(s). An encryption unit 114d generates a first cipher text c1 of the verification value a using a public-key polynomial h, and a second function unit 115d generates a functional value H(a,c1) of the verification value a and the first cipher text c1, and a random-number mask unit 116d generates a second cipher text c2=s xor H(a,c1). A decryption unit 123d, in a decryption apparatus 120d, decrypts the first cipher text c1 using a secret-key polynomial f, to generate a decryption verification value a'. A third function unit 124d generates a functional value H(a',c1) of the decryption verification value a' and the first cipher text c1, and a random-number mask removal unit 125d generates a decryption random number s'=c2 xor H(a',c1). A fourth function unit 126d generates a hash functional value G(s') of the decryption random number s', and generates a verification value a'' and a shared key K' from the functional value G(s') A comparison unit 127d outputs the shared key K' if the decryption verification value a' is equal to the verification value a''.

A automated test tube cap removal apparatus includes, a cap remover, a test tube rack which holds a plurality of capped test tubes upright in a row, a clamping mechanism which is disposed in the cap removing position and clamps the plurality of test tubes, and a cap removal unit disposed in the cap removing position and configured to move upward to remove caps from some of a plurality of test tubes and move upward to remove caps from the remaining test tubes. The cap removal unit includes engaging members which are capable of advance and retreat with respect to the caps and clamp each cap, a lift mechanism which raises the engaging members while alternately moving the engaging members upward, thereby removing the cap from each test tube, a cap guide member which separates the cap and guides the cap for dropping.

A medicine delivering device permits additional medicine cassettes to be provided at low cost without greatly enlarging the installation space. The medicine delivering device includes a medicine storage and removal unit in which many medicine cassettes each containing a medicine are detachably provided to the outer surface of a drum whose upper and lower ends are rotatable supported by the device body and a medicine packaging unit that packages medicine removed through a collecting hopper from the medicine cassette of the medicine storage and removal unit. There is provided on the side surface of the device body a sub medicine storage and removal unit including: a body; a drawer body provided to be capable of being pulled out from the body and that is detachably provided with a plurality of medicine cassettes each containing the medicine; and a guide that guides the medicine taken out from the medicine cassette to the collecting hopper.

Disclosed is an apparatus and process for controlling the sulfur content of effluent from a hydrocarbon fractionation column. The effluent includes a low boiling stream, a middle boiling stream and a high boiling stream. Either of the feed or the low boiling stream may be subjected to a mercaptan removal treatment such as thioetherification or mercaptan oxidation treatment. The high boiling stream is subjected to hydrotreatment which will rid the high boiling stream of almost all organic sulfur compounds. The middle boiling stream may be subjected to a sulfur treatment complex which may comprise a sulfur removal unit and/or a catalytic reforming unit which may already be present in the refinery. Control valves govern the flow of adding the middle boiling stream to the low boiling stream and the high boiling stream in response to the sulfur concentration of the overhead stream downstream of the mercaptan removal treatment.

The present invention is an apparatus and process for oxidizing mercaptans in a preferably kerosene stream. By using a catalyst promoter, sufficient separation of hydrocarbon and aqueous alkali occurs in the reactor vessel to obviate the need for a settling tank. Hence, the sweetened kerosene can be withdrawn from the reactor vessel and sent directly to a residual alkali removal unit such as a sand filter vessel or to a water wash vessel if jet grade fuel is desired. In an embodiment, the reactor vessel used for this purpose includes a reaction section and a separation section in the same reactor vessel and an aqueous alkali outlet and a sweetened hydrocarbon outlet in the separation section.

The invention relates to a low-temperature coke oven flue waste gas desulphurization and denitration process. According to the process, fluidized NaHCO3 fine powder is jetted into a flue gas conveying pipeline, so as to remove most of SO2 in the flue gas through the dry process; meanwhile, a denitration catalyst structure layer and an ammonia removal catalyst structure layer are combined for use, so that NOx in the coke oven flue gas is effectively removed; a denitration catalyst adopts a filtering-bag-shaped structure, and the ammonia removal catalyst adopts a V-shaped structure. The process utilizes a system consisting of an induced draft unit, a desulphurization unit, an ammonia preparation unit, a denitration and ammonia removal unit, a compressed air unit and a particle conveying unit to realize efficient denitration and desulphurization; compared with the prior art, the process has the benefits that residual ammonia water in a coking plant is fully utilized, a process combining a dry desulphurization method with an SCR (Selective Catalytic Reduction) denitration method is adopted, and the denitration catalyst and the ammonia removal catalyst are combined together, so that the efficient low-temperature coke oven flue gas desulphurization and denitration is realized.

A process to prepare a sweet crude from an ash containing and heavy fraction of a tar sand oil by:

• (a) supplying an atmospheric distillation bottoms of a tar sands originated feed to a vacuum distillation to obtain a vacuum gas oil and a vacuum bottoms,
• (b) contacting the vacuum gas oil with hydrogen in the presence of a suitable hydrocracking catalyst to obtain a sweet synthetic crude
• (c) separating the vacuum bottoms obtained in step (a) into an asphalt fraction comprising between 0.1 and 4 wt % ash and a de-asphalted oil,
• (d) feeding said asphalt fraction to a burner of a gasification reactor where the asphalt fraction is partially oxidized in the presence of an oxidizer gas in a burner to obtain a mixture of hydrogen and carbon monoxide,
• (e) performing a water gas shift reaction on the mixture of hydrogen and carbon monoxide,
• (f) separating hydrogen sulphide and carbon dioxide from the shifted gas in an acid removal unit thereby obtaining crude hydrogen,
• (g) purifying the crude hydrogen to obtain pure hydrogen and
• (h) using part of the pure hydrogen in step (b), wherein in step (d) the asphalt fraction is provided to the burner in a liquid state and wherein in case separation step (c) fails to provide sufficient feed for step (d), step (d) is performed by feeding the vacuum bottoms of step (a) to the burner in a liquid state.

A water treatment system and method including a membrane-based boron removal unit includes a boron analyzer for detecting the concentration of boron in a treatment stream. The boron removal unit can be a reverse osmosis (RO) or electrodeionization (EDI) treatment unit. A controller responds to the detected boron concentration to control an operation of the RO or EDI units. In an EDI system, the controller may adjust current or voltage supplied to match current to changes in ionic load and maintain a portion of the dilute cell in a substantially regenerated state. In an RO system, the controller may control the high pressure side flow rate, the brine blowdown rate, the product water permeation rate, pH, or feed rate of chemicals in response to the detected boron concentration value.

Disclosed is a removal unit for removing metallic alien materials, which is adapted to remove metallic alien materials such as metal fragments contained in powder or liquid raw materials. The removal unit includes an outer plate, an inner plate spaced apart from the outer plate, and magnet members coupled between the inner and outer plates. Each magnet member includes a cylindrical stainless steel rod, a magnet received in the stainless steel rod to extend from one end of the stainless steel rod to at least an intermediate portion of the stainless steel rod, a non-magnetic piece received in the other end of the stainless steel rod and coupled to the outer plate, and a fluorine resin coating formed over an outer peripheral surface of the stainless steel rod. A removal member is arranged to be slidable in a longitudinal direction along the magnet members while being in contact with the outer peripheral surfaces of the magnet members.