2716 results about "Dry gas" patented technology

The present invention relates to the connections between respiratory humidifiers and/or other such devices and heated breathing conduits used to couple a patient to the humidifier. In particular, the invention is a connector to couple a gases supply means and a conduit, such that the connector causes there to be an electrical and pneumatic, that is, sealed connection between a conduit including an electrical wire extending within, throughout or about it and a gases supply device, such as a humidifier, blower or the like. The connector may be of a single port type or a dual port type. The dual port type connector is suitable for ventilator apparatus that have a dry line (dry breathing conduit) extending from a ventilator or blower that carries dry gas to a humidifier and an inspiratory limb that extends from the humidifier to the patient and carries humidified gases to the patient.

The invention discloses a separating refinery catalytic dry gas method with middle cold oil absorptive method in separating refinery catalytic dry gas technical domain, which comprises the following steps: compressing; stripping acid gas; drying; purifying; absorbing; desorbing; reclaiming cold energy; crude-separating. This invention possesses cheap cost, low lost, simple operation, little investment and low energy consumption, which can get C2 fraction and ethane.

Methods and apparatus are provided for making particles comprising: (a) spraying an emulsion, solution, or suspension, which comprises a solvent and a bulk material (e.g., a pharmaceutical agent), through an atomizer and into a primary drying chamber, having a drying gas flowing therethrough, to form droplets comprising the solvent and bulk material dispersed in the drying gas; (b) evaporating, in the primary drying chamber, at least a portion of the solvent into the drying gas to solidify the droplets and form particles dispersed in drying gas; and (c) flowing the particles and at least a portion of the drying gas through a jet mill to deagglomerate or grind the particles. By coupling spray drying with “in-line” jet milling, a single step process is created from two separate unit operations, and an additional collection step is advantageously eliminated. The one-step, in-line process has further advantages in time and cost of processing.

A method for producing propylene and gasoline diesel-oil by two-section catalyzed cracking style is carried out by adopting two-section lift pipe catalyzing process and catalyst with molecular sieve, taking heavy petroleum hydrocarbon or various animal and vegetable oils containing hydrocarbon as raw materials, optimization combining by charging style for various reactants, and controlling proper reactive conditions. It can improve propene and light-oil recovery rate and quality, and inhibit to generate dry gas and coke.

A membrane exchange humidifier employs a water permeable membrane comprising a microporous polymer and a hydrophilic additive. In operation, the membrane preferably has favorable water transmission properties and resists transmission of reactant gas or other components. The membrane is suitable for use even when permeable in its dry condition to the wet or dry gases in the humidifier, and/or when the wet and dry gases are of different composition. By wetting the membrane, the presence of an amount of liquid water in the wet gas can reduce gas transmission through the membrane to an acceptable level. The humidifier is useful in fuel cell systems in which a reactant gas supply stream, such as the oxidant supply stream, is humidified primarily using water vapor from a fuel cell reactant exhaust stream. The humidifier is particularly suitable for use in conjunction with solid polymer fuel cell systems. The improved mechanical and welding properties of the membrane allow for a simpler humidifier configuration.

The invention described herein is a method for selectively removing mercaptans such as methyl mercaptan from dry gas mixtures containing high concentrations of carbon dioxide. In the method, the carbon dioxide-rich gas (sour gas) is passed through an absorption vessel or distillation column in which it is contacted with an absorbent such as liquid carbon dioxide in order to selectively absorb the mercaptans. The treated gas, which is now free of mercaptans, leaves the top of the vessel as a sales gas suitable for use in enhanced oil recovery applications. Preferably, a portion of the carbon dioxide in the sales gas is condensed and the liquid is returned to the absorber or distillation column as the scrubbing agent. At least part of this scrubbing agent leaves the bottom of the absorber or distillation column enriched in methyl mercaptan and other sulfur compounds. The stream from the absorption vessel containing the mercaptans can be incinerated or otherwise processed to utilize or dispose of the methyl mercaptan.

A catalytic conversion method for preparing propylene and high-octane gasoline comprises the following steps: raw materials which are difficult to be cracked are firstly contacted with a thermal regeneration catalytic cracking catalyst to carry out cracking reaction under the conditions that the reaction temperature is 600-750 DEG C and the weight hourly space velocity is 100-800h<-1>, the reactant flow is mixed with raw oil which is easy to be cracked to carry out the cracking reaction under the conditions that the reaction temperature is 450-620 DEG C and the weight hourly space velocity is 0.1-100h<-1>; the spent catalyst and reaction oil and gas are separated, the spent catalyst returns to a reactor after regeneration, the reaction oil and gas are separated to obtain propylene and gasoline, and hydrogenated heavy oil obtained by hydrotreating fractions above 260 DEG C is taken as raw oil of the catalytic cracking device or a conventional catalytic cracking device. The method improves the yield and the selectivity of the propylene, increases the yield of the high-octane gasoline, reduces the yield of dry gas, greatly increases the yield of liquid and realizes the high-efficient utilization of petroleum resources.

A two-way combined process of wax oil hydro-process and catalytic crack is carried out by entering wax oil, catalytic cracking re-circulating oil and catalytic cracking diesel oil into hydro-processor, hydrogenation reacting under existence of hydrogen and hydrogenation catalyst, separating for reactant to obtain gas, hydrogenation naphtha oil, hydrogenation diesel oil and hydrogenation tail oil, entering hydrogenation tail oil into catalytic cracker, crack reacting under existence of catalytic cracking agent, separating to obtain dry gas, liquefied gas, catalytic cracking gasoline, catalytic cracking diesel oil and catalytic cracking re-circulating oil and oil slurry, and circulating for catalytic cracking diesel oil and catalytic cracking re-circulating oil to hydro-processor. It has higher recovery rate and cetyl value, less sulfur content, arene content and coke output.

Conventional spray-drying methods are improved by incorporation of a pressure nozzle and a diffuser plate to improve the flow of drying gas and a drying chamber extension to increase drying time, such improvements leading to the formation of homogeneous solid dispersions of drugs in concentration-enhancing polymers.

The invention relates to a catalysis conversion method for producing aromatic compounds. According to the method, poor quality heavy cycle oil and residual oil are subjected to a hydrotreating reaction in the presence of hydrogen gas and a hydrogenation catalyst, and the reaction products are separated to obtain gas, naphtha, hydrogenated diesel oil and hydrogenated residue oil, wherein the hydrogenated diesel oil enters a catalysis cracking device and is subjected to a cracking reaction in the presence of a catalysis cracking catalyst, the reaction products are separated to obtain dry gas, liquefied gas, catalytic gasoline containing rich benzene, toluene and xylene, catalytic light diesel oil, distillates with a distillation range of 250-450 DEG C, and an oil slurry, and the distillates with the distillation range of 250-450 DEG C are conveyed to a residue oil hydrotreating device so as to be recycled. According to the present invention, the residue oil hydrogenation condition is completely utilized to achieve saturation of the aromatic ring in the poor quality heavy cycle oil to the maximal degree, such that the hydrogenated diesel oil maximally produce benzene, toluene and xylene during catalysis cracking.

The invention discloses a device and a method for separating refinery dry gas through oil absorption. The device comprises a C4 absorption tower and a C4 desorption tower. A gasoline absorption tower is arranged after the C4 absorption tower. A top outlet of the C4 absorption tower is connected to the lower part of the gasoline absorption tower. The bottom and the top of the gasoline absorption tower respectively communicate with the outside world. The method comprises the steps that: catalytic dry gas is subjected to compression and cooling, and is delivered into the C4 absorption tower and is absorbed by using a C4 absorption agent; the tower kettle material of the C4 absorption tower is delivered into the C4 desorption tower; the tower kettle material of the C4 desorption tower is delivered back to the C4 absorption tower; tower top gas of the C4 absorption tower is delivered into the gasoline absorption tower and is absorbed by a gasoline absorption agent. According to the invention, no equipment such as ethylene cooling machine, expansion machine, or cold box is needed, such that investment and energy consumption are reduced.

The present invention provides a substrate processing apparatus having a drying mechanism for removing water from the surface of a substrate which has been cleaned by a wet cleaning process, and a substrate processing apparatus and a substrate processing method which are capable of efficiently removing an unnecessary thin film deposited on or adhering to a bevel or edge portion of a substrate. The substrate processing apparatus of this invention has a substrate holder for holding a substrate, and a dry gas supply section for turning an atmosphere to which at least a portion of a surface of the substrate held by the substrate holder is exposed into a humidity-controlled dry gas atmosphere.

The invention discloses a method for refining catalysis drying gas by using oil absorption extraction. The method comprises the steps of using the carbon five-hydrocarbon containing pentane as absorbent, absorbing the C2 distillate and more important components in the compressed and cooled catalysis drying gas in a main absorbing tower, sending the matter in the main absorbing tower to a desorbing tower, and recycling the C2 concentrated gas from the top of the desorbing tower. The method of the invention has high absorbing temperature and needs no ethylene, propylene cooling compressor and de-compressor so the energy consumption is less, the investment is low and the operation is simple.

The present invention provides a standardized mechanical interface (SMIF) reticle pod that is configured to provide a controlled environment for supporting a reticle wherein the controlled environment is maintained substantially free of crystal growth causing contaminants. Accordingly, there is provided a layered filter with filter elements capable of filtering particulates and adsorbing gaseous contaminants. The filter has an inwardly facing face generally planar shaped with a surface area that is substantially half or more of the area of the reticle face. The inwardly facing face is placed in close proximity to the reticle patterned surface and has an area that is a significant fraction of the reticle patterned surface area. The SMIF pod is also provided with a purge system configured to inject a very dry gas within the controlled environment to flush the controlled environment of contaminants as well as to regenerate the filter.

A method for preparing light fuel oil and propylene from poor-quality raw oil comprises the following steps: the poor-quality raw oil sequentially enters a first reaction zone and a second reaction zone of a catalytic conversion reactor so as to be contacted with a catalytic conversion catalyst to generate first reaction and second reaction respectively, and after gas-solid separation is implemented to reaction products and spent catalyst, the spent catalyst returns to the reactor for recycling after steam stripping and burning; the reaction products are separated to obtain propylene, gasoline, heavy oil and other products, wherein the heavy oil is contacted with hydrogen and a hydrotreating catalyst for reaction, the obtained hydrogenated heavy oil circulates to the first reaction zone of the catalytic conversion reactor or/and other catalytic conversion devices for further reaction to obtain the target products of the propylene and the gasoline. The characteristic of the heavy oil obtained by hydrotreating after the mild catalytic conversion of the poor-quality raw oil is significantly improved, thereby significantly increasing light oil, reducing dry gas, reducing the yield of oil slurry and realizing the high-efficient utilization of petroleum resources.

An apparatus and process including a heat sink exchanger (26) to cool and condense liquid out of a drying gas with a heat transfer surface arranged to exchange heat with a first sub-stream of the drying gas and a heat source heat exchanger (27) arranged to exchange heat with a second sub-stream of a drying gas and arranged in a functionally parallel configuration with said heat sink heat exchanger (26) so that each of said drying gas sub-streams exchanges heat with one of the two said heat transfer surface per cycle through the heat exchange system and a gas movement device (35) for propelling the drying gas through the heat exchanger system in either a forward or reverse flow path direction. The apparatus and process can also include controlling the amount of heat rejected from apparatus (26) based on maintaining the wet bulb of the drying gas nominally constant and controlling the amount of refrigerant in the heat exchanger circuit based on maintaining the dry bulb temperature of the drying gas within certain limits.

A wet scrubber having a series of chambers for capturing and cooling exhaust gases generated during static test firing of rocket motors. Exhaust gas enters an inlet to a first chamber and is cooled and slowed by a spray solution. HCL gas is condensed and absorbed by the spray solution and precipitates to a liquid slurry at the bottom of the device. The remaining exhaust products enter a demister chamber where nozzles continue to spray the gasses as they pass upward and through a mesh-style demister at the top of the vessel. The demister filters liquid and solid waste particles from the gas stream, and the clean, dry gases are accelerated through a centrifugal fan into the atmosphere. A deflector is positioned within the inlet to the first chamber for containing parts in the event of a motor mal-function.

The invention discloses a catalysts grading method for coker dry gas hydrogenation for preparation of ethylene cracking feed. According to the method, coker dry gas is contacted with a hydrogenation catalyst to carry out a hydrogenation reaction, and olefin in coker dry gas is saturated to further obtain an ethylene cracking feedstock, wherein three hydrogenation reaction zones are successively arranged in a hydrogenation reactor. By reasonable grading of catalysts in different systems, advantages of the respective catalysts during different hydrogenation processes are fully performed. By synergism among the catalysts and by cooperation of reaction temperature gradients of the three hydrogenation reaction zones, activity of the monolithic catalyst is raised.