Abstract: The present disclosure relates to methods for processing plastic waste pyrolysis gas, such as methods wherein clogging of the systems used in the method is avoided or at least alleviated.

Abstract: A staggered and crossed heat storage adsorption bed and a seawater desalination waste heat storage system are provided, which relate to the field of seawater desalination and the technical field of thermochemical adsorption heat storage. The adsorption bed includes a bed body, wherein an adsorption cavity is arranged in the bed body; two sides of the adsorption cavity are respectively communicated with an inlet cavity and an outlet cavity; the adsorption cavity includes a vacuum heat insulation layer arranged at an outermost side; the vacuum heat insulation layer is embedded with an adsorption box fixing layer; a corner end adsorption box, a central adsorption box and a side adsorption box are staggered and crossed arranged in an inner cavity of the vacuum heat insulation layer through the adsorption box fixing layer.

Abstract: The disclosure pertains to a urea production plant and process using a thermal stripper, wherein the reaction mixture is separated in two parts, wherein the first part is supplied at least in part to the thermal stripper and the second part at least in part bypasses the thermal stripper and is supplied to a medium pressure recovery section.

Abstract: A system for producing needle coke and a method for producing needle coke using the system are provided. The system includes a coke tower, a pressure stabilization tower, a buffer tank and a coking fractionation tower. A pressure controller is provided at the top of the pressure stabilization tower for adjusting the pressure at the top thereof. An oil gas outlet of the coke tower is in communication with an oil gas inlet of the pressure stabilization tower through a pipeline. No pressure controller for adjusting the pressure at the top of the coke tower is provided in the coke tower or on the oil gas pipeline connecting the coke tower to the pressure stabilization tower.

Abstract: The present disclosure provides a method for decomposing a phenolic by-product, the method including: a step S10 of injecting and mixing a bisphenol A by-product produced in a bisphenol A production process, a mixed by-product stream of phenol by-products produced in a phenol production process, a decomposition apparatus side discharge stream, and a process water stream in a mixing apparatus; a step S20 of injecting a mixing apparatus discharge stream discharged from the mixing apparatus into a phase separation apparatus and phase-separating the mixing apparatus discharge stream into an oil-phase stream and a liquid-phase stream; a step S30 of feeding the oil-phase stream, which is phase-separated in the step S20 and discharged from the phase separation apparatus, to a decomposition apparatus to decompose the oil-phase stream; and a step S40 of circulating the decomposition apparatus side discharge stream obtained by the decomposition in the step S30 to the mixing apparatus in the step S10.

Abstract: In accordance with one or more embodiments of the present disclosure, a method for producing aromatic compounds from pyrolysis gasoline comprising C5-C6 non-aromatic hydrocarbons includes aromatizing the pyrolysis gasoline in an aromatization unit, thereby converting the C5-C6 non-aromatic hydrocarbons to a first stream comprising benzene-toluene-xylenes (BTX); hydrotreating the first stream comprising BTX in a selective hydrotreatment unit, thereby producing a de-olefinated stream comprising BTX hydrodealkylating and transalkylating the de-olefinated stream comprising BTX in a hydrodealkylation-transalkylation unit, thereby producing a second stream comprising BTX, the second stream comprising BTX having a greater amount of benzene and xylenes than the first stream comprising BTX; and processing the second stream comprising BTX in an aromatics recovery complex, thereby producing the aromatic compounds from the pyrolysis gasoline, the aromatic compounds comprising benzene, toluene, and xylenes.

Abstract: The present invention relates to a process for purifying a composition comprising a hydrohalocarbon B comprising the steps of: i) providing a composition A1 comprising a hydrohalocarbon B and at least one impurity C different from said hydrohalocarbon B, ii) compressing said composition A1, and optionally cooling it, so as to obtain said hydrohalocarbon B in liquid form in order to form a liquid stream A2 comprising said hydrohalocarbon B, iii) distilling said stream A2 obtained in step ii) in order to form and recover a stream A3 comprising said hydrohalocarbon B, characterized in that step iii) is carried out in a pressurized distillation device comprising one or more rotating packed beds.

Abstract: A multi-function solar panel, the panel being of the tilted tray type which is divided into three chambers, one chamber being used for electricity generation, and cooling of the PV panel and partial preheating of the feed water to a still, one for processing the feed water to produce potable water and the other for water storage and other ancillary devices used in the production process and PAYG functionality of the multi-function solar panel.

Abstract: A method of producing a coal mixture includes blending a plurality of coals, wherein formula (1) and formula (2) are satisfied: ? calc = ? i N ? ? i × x i ( 1 ) ?calc?1.2×10?10 (mol/g-coal)??(2) wherein ?calc is a hydrogen ion release capacity per unit mass (mol/g-coal) of the coal mixture, ?i is the hydrogen ion release capacity per unit mass (mol/g-coal) of a coal i, xi is a blending ratio of the coal i blended in the coal mixture, and N is a total number of brands of coal contained in the coal mixture.

Abstract: A method for removal of sulfide from a stream, the method comprising preparing a metal-chelant complex, designated M-Yn, where M is a divalent or trivalent cation, Y comprises a gluconic acid, glucaric acid or derivative thereof, and n is from about 1 to about 3; contacting a mixture comprising M-Yn and a base with a sulfide stream under conditions suitable for the formation of a metal-sulfide species; and contacting the metal-sulfide species with an oxidizing agent to form a soluble metal sulfide species. A method for removal of sulfide from a stream, the method comprising preparing a sulfide scavenging mixture comprising a base and a metal-complex characterized by Structure (I); contacting the sulfide scavenging mixture with a sulfide stream under conditions suitable for the formation of a metal-sulfide species; and contacting the metal-sulfide species with an oxidizing agent to form a soluble metal sulfide species.

Abstract: It has been discovered that solid contaminants in a mixture of a hydrocarbon phase and an aqueous phase may be retained in the hydrocarbon phase by introducing to the mixture an effective amount of an oil-wetting additive to retain at least a portion of the solid contaminants in the hydrocarbon phase as contrasted with an aqueous phase. The oil-wetting additive can be a surface-active additive including, but is not necessarily limited to, drilling fluid additives, surfactants, antifoulants, nanoparticles and combinations thereof.

Abstract: The invention relates to a process for the recovery of aliphatic hydrocarbons from a liquid hydrocarbon feedstock stream, which comprises aliphatic hydrocarbons and additionally comprises aromatic hydrocarbons and/or polar components, said process comprising the steps of: feeding the liquid hydrocarbon feedstock stream to a first column; feeding a first solvent stream which comprises an organic solvent to the first column at a position which is higher than the position at which the liquid hydrocarbon feedstock stream is fed; contacting at least a portion of the liquid hydrocarbon feedstock stream with at least a portion of the first solvent stream; and recovering at least a portion of the aliphatic hydrocarbons by liquid-liquid extraction of aromatic hydrocarbons and/or polar components with organic solvent, resulting in a stream comprising recovered aliphatic hydrocarbons and optionally organic solvent and a bottom stream from the first column comprising organic solvent and aromatic hydrocarbons and/or polar

Abstract: The present invention provides a microcrystalline wax having a needle penetration according to ASTM D-1321 at 25° C. of more than 1, a crystallinity according to XRD between 5 and 70%, an initial boiling point of less than 500° C., a congealing point in the range of from 60 to 120° C., an oil content according to ASTM D-721 of more than 2 wt. %, wherein the microcrystalline wax has a fraction up to C40 having at least 5 wt % of multiple methyl-branched paraffins as determined with GC×GC.

Abstract: There is a process for the production of a liquid fuel and of a gaseous fuel from biomass. The biomass is sent to a pre-treatment section to form a homogeneous phase that can be moved and/or pumped, wherein inert parts are separated from the biomass and the biomass shredded and/or ground to reduce its size. The homogeneous phase obtained is then subjected to subcritical hydrothermal liquefaction at a temperature between 240° C. and 310° C. to form a liquefied phase. The liquefied phase is separated. After separation, the process continues in two alternative and mutually exclusive modes. In the first mode, the first aqueous phase is subjected to an anaerobic reaction with multiple stages producing biogas; the oily phase is separated into a bio-oil and a solid residue. In the second mode, the separate mixed phase is separated by density or dynamics forming a first aqueous phase, bio-oil and a gaseous phase.

Abstract: The disclosure provides methodology for the synthesis of mono-alkylated cyclopentadiene structures, which can be obtained via fulvene intermediates. In one embodiment, the cyclopentadiene ring is substituted with a trialkylsilyl moiety, which enables the further reaction with certain metal halides to form metal adducts. For example, the monoalkyl cyclopentadienes substituted with a trimethylsilyl group can be reacted with TiCl4 to provide R*CpTiCl3 complexes, wherein R* is a group of the formula wherein R1 and R2 are as defined herein.

Abstract: Embodiments of the present disclosure include a system for harvesting salt, and other valued material, and generating distilled water from at least one of a produced water and salt water. The system can include a direct steam generator (DSG) configured to generate saturated steam and combustion exhaust constituents. The system can include a separation system operating after the DSG, configured to separate salt from the saturated steam and combustion exhaust constituents in at least one of brine form and solid form. The system can include an energy recovery system that includes an expansion turbine configured to recover energy from the steam and exhaust constituents.

Abstract: The present invention discloses process and apparatus for the production of light olefins from their respective alkanes by catalytic dehydrogenation, where in the dehydrogenation reaction is carried out in multiple semi-continuously operated fluidized bed isothermal reactors, connected to a common regenerator and wherein the process is carried out in a sequence of steps in each cycle i.e., entry of hot regenerated catalyst, pre-treatment with reducing gas, dehydrogenation reaction, stripping, transfer of catalyst to regenerator and catalyst regeneration. Process cycle in each reactor starts at different times such that the catalyst inventory in the regenerator is invariable with time.

Abstract: The present application relates to a method for treating a petrol containing sulphur compounds, olefins and diolefins, the method comprising the following steps: a) a step of hydrodesulphurisation in the presence of a catalyst comprising an oxide support and an active phase comprising a group VIB metal and a group VIII metal from, b) a step of hydrodesulphurising at least one portion of the effluent from step a) at a higher hydrogen flow rate/feed ratio and a temperature higher than those of step a) without removing the H2S formed in the presence of a catalyst comprising an oxide support and an active phase consisting of at least one group VIII metal, c) a step of separating the H2S formed in the effluent from step b).

Abstract: A desolidification process enables the isolation and extraction of solid additives from an unreacted petroleum residue stream. In a hydrocracking process that mixes a solid additive with a petroleum residue feedstock to convert the petroleum residue to higher-value distillates, the desolidification process enables the recovery of the unreacted petroleum residue for conversion to a saleable product. The desolidification process involves the mixture of one or more solvents with a slurry in which solids are integrated in the petroleum residue to generate a mixture having a decreased density and viscosity as compared to the slurry, which facilitates removal of the solids.

Abstract: Recovering hydrocarbons from oil shale can include injecting a heated working fluid into a first vessel containing particulate oil shale in a pyrolysis mode. The heated working fluid can have a temperature above a production temperature to pyrolyze kerogen in a stationary bed of the oil shale at or above the production temperature. An effluent can concurrently flow out of the first vessel to be injected into a second vessel in preheating mode. The second vessel containing particulate oil shale has an average temperature below the production temperature so as to capture heat from the effluent sufficient to increase the average temperature of the particulate oil shale and to condense condensable hydrocarbon product while also removing entrained mineral fines mists of condensed hydrocarbons from the effluent. Liquid hydrocarbons can concurrently be collected from the first vessel and/or the second vessel.