Abstract: A sorbent composition for the sequestration of mercury from a gas stream, a method for sequestering mercury from a gas stream and a method for the manufacture of a sorbent composition. The sorbent composition includes a highly porous particulate sorbent and at least two additive components, namely a non-halogen metal compound comprising a metal cation and an inorganic sulfur-containing compound, where at least a portion of the sulfur in the sulfur-containing compound has an oxidation state of equal to or less than +4. The method includes injecting the highly porous particulate sorbent and the two additive components into a gas stream, either discretely or as a single sorbent composition, to sequester mercury in the particulate sorbent. The method has a high degree of efficacy for mercury removal without requiring the addition of halogens to the gas stream.

Abstract: A system includes a first separator that separates water from a fluid material. The water settles on the bottom of the water knock-out tank. The system includes multiple compressors to boost the pressure of the fluid material. The system includes a second separator that separates condensate from the fluid material. The system includes a mixing pipe that mixes glycol with the fluid material and a first heat exchanger that cools the mixed fluid material and glycol. The system includes a third separator that separates gaseous components and liquid components of the mixed fluid material and glycol and a fourth separator that separates the liquid components of the mixed fluid material and glycol. The system includes a fractional distillation column that heats a first liquid from the fourth separator, gasifying a first portion of the first liquid. A second portion of the first liquid remains liquid and is natural gas liquids.

Abstract: A carbon molecular sieve (CMS) membrane having improved separation characteristics for separating olefins from their corresponding paraffins is comprised of carbon with at most trace amounts of sulfur and a transition metal, wherein the transition metal is one or more of a group 4-10 and 12 transition metal. The CMS membrane may be made by pyrolyzing a precursor polymer devoid of sulfur in which the precursor polymer has had a transition metal incorporated into it. The pyrolyzing for the precursor having the transition metal incorporated into it is performed in a nonoxidizing atmosphere and at a heating rate and temperature such that the metal has a valence greater than zero (i.e., not metal bonded) to a valence desirably closer to its maximum valence.

Abstract: A filtering device and a filtering method are provided. The filtering device includes a bubble filtering system. The bubble filtering system at least includes a first bubble filtering system and a second bubble filtering system. The first bubble filtering system configured for performing a first bubble filtration in the solution. The second bubble filtering system configured for performing a second bubble filtration in the solution. Filter fineness of the second bubble filtering system is higher than filter fineness of the first bubble filtering system.

Abstract: An aminal compound is injected into a fluid gas stream including at least one acid gas to reduce the amount of acid gas in the fluid gas stream. Having two reactive sites present in the aminal compound enables a much higher efficiency of acid gas capture than a simple alkanolamine, which isn't effective, for example, under dilute circumstances.

Abstract: A design is provided to convert a gas subcooled process plant to a recycle split vapor process for recovering ethane and propane from natural gas. When in operation, the recovery of ethane and propane can exceed 97 to 99 wt. % of the stream being processed. A second smaller demethanizer column is added to the gas subcooled process plant as well as the addition of several cryogenic pumps.

Abstract: An object of the present invention is to provide a gas refining apparatus which can produce a product gas with high purity and high yield at low cost and can produce a plurality of types of gas as a product gas without changing an adsorbent, and the present invention provides a gas refining apparatus (10) including a first derivation line (L3) connected to the second adsorption towers (2a, 2b) and through which the first gas flows, a second derivation line (L4) connected to the second adsorption towers (2a and 2b) and through which the second gas flows, a regeneration line (L5) connected to the first adsorption towers (1a, 1b), through which a regeneration gas for regenerating a first adsorbent in the first adsorption towers (1a, 1b) flows, and a pump (P) provided in the second derivation line (L4) and configured to desorb the second gas from a second adsorbent in the second adsorption towers (2a and 2b), and the regeneration line (L5) is connected to each of the first derivation line (L3) and the second deri

Abstract: The present disclosure is directed to a method for making a MER framework type zeolite, a MER framework type zeolite having a stick-like morphology, and processes for the selective separation of carbon dioxide (CO2) from multi-component feedstreams containing CO2 using the zeolite.

Abstract: The degassing device includes a degassing flow path, a vacuum chamber, a vacuum pump, an inlet flow path, an outlet flow path, a drain flow path, a downstream side switching unit, and a controller. The degassing flow path is made of a gas-permeable, liquid-impermeable tube, and is accommodated in the vacuum chamber. The inlet flow path is for introducing a mobile phase to the degassing flow path, and the outlet flow path is for causing a mobile phase which has passed through the degassing flow path to flow out. The drain flow path is provided separately from the outlet flow path and is configured to drain the mobile phase in the degassing flow path from the degassing flow path. The downstream side switching unit is configured to switch the downstream end of the degassing flow path so as to be connected to either the outlet flow path or the drain flow path.

Abstract: A method for purification of a styrene-containing feedstock includes steps of introducing the styrene-containing feedstock into the middle of an extractive distillation column, and a solvent for the extractive distillation into the upper part of the column; discharging a raffinate oil from the top of the column, and a rich solvent rich in styrene from the bottom of the column. The rich solvent is then introduced into the middle of the solvent recovery column for vacuum distillation to obtain a crude styrene from the top of the solvent recovery column, and a lean solvent is discharged from the bottom of the solvent recovery column and recycled to the upper part of the extractive distillation column. A portion of the rich solvent is sent to a solvent purification zone for a liquid-liquid extraction using water to obtain a mixture of a styrene polymer and styrene.

Abstract: Rechargeable dehumidifier including inside it the components it consists of, with the possibility that none of them project outward so that it can have an outward appearance without projections, as well as being simple to manufacture, comprising a casing with at least one first opening and open on the top, which configures a first internal cavity, a first lid arranged on top of the casing, provided in the first cavity with a container that in turn comprises a body open on the top that configures a second cavity, a second lid provided on top of the body and having at least one second opening; on top of the second lid may be provided a desiccant agent such that the water absorbed by it is collected in the body when it falls by gravity.

Abstract: An object of the present invention is to suppress performance deterioration of a molybdenum composite oxide-based catalyst at the time of performing gas-phase catalytic partial oxidation with molecular oxygen by using a tubular reactor. The present invention relates to a catalytic oxidation method using a tubular reactor in which a Mo compound layer containing a Mo compound and a composite oxide catalyst layer containing a Mo composite oxide catalyst are arranged in this order from a reaction raw material supply port side and under a flow of a mixed gas containing 75 vol % of air and 25 vol % of water vapor at 440° C., a Mo sublimation amount of the Mo compound is larger than a Mo sublimation amount of the Mo composite oxide catalyst under the same conditions.

Abstract: A method of converting one or more alkanes to one or more alkenes that includes a) providing a first stream containing one or more alkanes and oxygen to an oxidative dehydrogenation reactor; b) converting at least a portion of the one or more alkanes to one or more alkenes in the oxidative dehydrogenation reactor to provide a second stream exiting the oxidative dehydrogenation reactor containing one or more alkanes, one or more alkenes, oxygen, carbon monoxide and optionally acetylene; and c) providing the second stream to a second reactor containing a catalyst that includes a group 11 metal to convert a least a portion of the carbon monoxide to carbon dioxide and reacting the acetylene.

Abstract: Systems and methods are provided for separation of CO2 from dilute source streams. The systems and methods for the separation can include use of contactors that correspond radial flow adsorbent modules that can allow for efficient contact of CO2-containing gas with adsorbent beds while also facilitating use of heat transfer fluids in the vicinity of the adsorbent beds to reduce or minimize temperature variations. In particular, the radial flow adsorbent beds can be alternated with regions of axial flow heat transfer conduits to provide thermal management. The radial flow structure for the adsorbent beds combined with axial flow conduits for heat transfer fluids can allow for sufficient temperature control to either a) reduce or minimize temperature variations within the adsorbent beds or b) facilitate performing the separation using temperature as a swing variable for controlling the working capacity of the adsorbent.

Abstract: An exemplary embodiment of the present application provides a method for preparing butadiene, the method comprising a process of performing an oxidative dehydrogenation reaction by introducing a reactant comprising butene, oxygen, nitrogen, and steam into a reactor which is filled with a catalyst, in which during a first start-up of the oxidative dehydrogenation reaction, the oxygen is introduced into the reactor before the butene, or the oxygen is introduced into the reactor simultaneously with the butene.

Abstract: A method of operating a fuel oxygen reduction unit for a vehicle or a gas turbine engine of the vehicle is provided. The fuel oxygen reduction unit including a contactor and a fuel gas separator, and further defining a stripping gas flowpath in flow communication with a stripping gas inlet of the contactor and a stripping gas outlet of the fuel gas separator. The method includes receiving data indicative of a parameter of a stripping gas flow through the stripping gas flowpath or of a component in flow communication with the stripping gas flow through the stripping gas flowpath; and determining an operability condition of the fuel oxygen reduction unit, or a component operable with the fuel oxygen reduction unit, based on the data received indicative of the parameter of the stripping gas flow or of the component in flow communication with the stripping gas flow.

Abstract: The present disclosure relates to systems and methods for separation of sulfurous material(s) from a multi-component feed stream. The systems and methods can comprise contacting the multi-component feed stream with a solvent in a contacting column so that at least a portion of the sulfurous material(s) is transferred from the multi-component feed stream to the solvent. A stream of a substantially purified gas can thus be provided along with a liquid stream comprising at least a majority of the sulfurous material. In particular, the solvent can comprise liquid carbon dioxide, which can be particularly beneficial for removing sulfurous materials from multi-component feed streams.

Abstract: Hydrogenation of at least one aromatic or polyaromatic compound contained in a hydrocarbon feedstock having a final boiling point below or equal to 650° C., at a temperature of between 30 and 350° C., at a pressure of between 0.1 and 20 MPa, at a hydrogen/(aromatic compounds to be hydrogenated) molar ratio between 0.1 and 10 and at an hourly space velocity HSV of between 0.05 and 50 h?1, in the presence of a catalyst comprising an alumina support and an active phase comprising nickel, prepared by i) contacting the support with a solution containing a nickel precursor; ii) bringing the support into contact with a solution containing an organic compound comprising a carboxylic acid, or alcohol, or ester, or amide function; iii) drying the impregnated support at a temperature below 250° C.; i) and ii) being carried out separately, in any order, or at the same time.

Abstract: Embodiments of apparatuses and methods for reforming of hydrocarbons including recovery of products are provided. In one example, a method comprises separating a reforming-zone effluent into a net gas phase stream and a liquid phase hydrocarbon stream. The net gas phase stream is separated for forming an H2-rich stream and a first liquid phase hydrocarbon stream. The H2-rich stream may be contacted with an adsorbent to form an H2-ultra rich stream and a gas stream. C3/C4 hydrocarbons are absorbed from the gas stream with the liquid phase hydrocarbon stream. The gas stream may be contacted with an H2/hydrocarbon separation membrane to separate the PSA tail gas stream and form an H2-rich permeate stream and an H2 depleted non-permeate residue stream.

Abstract: Various methods and systems are provided for removing liquid from a sample containing both liquid component and gaseous component. In particular, the liquid component may be separated from the sample by flowing the gaseous component of the sample from a lower chamber to an upper chamber through a membrane. The liquid portion of the sample may be drain from the lower chamber via a drainage channel within the bottom wall of the lower chamber. The liquid portion of the sample flows horizontally outward in the drainage channel through capillary action induced by a capillary part positioned within the drainage channel.