Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 1 - 50 out of 8,858

Document Document Title
WO/2019/007781A1
The invention relates to a method for separating C4 hydrocarbons by extractive distillation, wherein the C4 hydrocarbons are subjected to a two-stage separation, comprising (i) fractionation of the C4 hydrocarbons into a light fraction a...  
WO/2019/008849A1
Provided are: a method for producing a purified aromatic hydrocarbon, the method being capable of stably producing the purified aromatic hydrocarbon having a low sulfur content; and a purified aromatic hydrocarbon or the like having a lo...  
WO/2019/008151A1
The invention relates to a method (100) for separating a starting mixture which largely contains hydrogen, methane, and hydrocarbons with two or two and more carbon atoms, wherein at least one part of the starting mixture is cooled, ther...  
WO/2019/009647A1
According to one embodiment of the present invention, a diffusion plate for a purification tower comprises: a supporting plate; at least one first fluid pipe positioned by penetrating the supporting plate; and a plurality of second fluid...  
WO/2019/002938A2
A scavenging composition and method for scavenging hydrogen sulfide and/or mercaptans from fluids. The scavenging composition comprises an alkali metal nitrite and a nitrogen-containing scavenger, and optionally an inorganic base, as a h...  
WO/2019/005274A1
Disclosed are processes for abating 3-cyclohexenone from a feed mixture comprising cyclohexylbenzene, cyclohexanone, phenol, and 3-cylclohexenone and cyclohexanone, comprising feeding the feed mixture to a first distillation column and a...  
WO/2019/005787A1
Processes for removal of heavy aromatic compounds in an alkylated aromatic compounds production complex is disclosed. The processes includes separating a first component from a second component comprising introducing a feed stream compri...  
WO/2019/005276A1
Disclosed are processes for making cyclohexanone from a feed mixture comprising cyclohexylbenzene, cyclohexanone, phenol, 3-cylclohexenone and optionally 2-cyclohexenone, comprising feeding the feed mixture to a first distillation column...  
WO/2019/005768A1
The present invention relates to a process and apparatus for reducing the desorbent recovery cost in a light desorbent system. More specifically, the present invention relates to an alternate flow scheme that for pre-fractionation of the...  
WO/2018/234158A1
The invention relates to a method for producing butadiene from n-butenes, having the steps of: A) providing an n-butene-containing feed gas stream a; B) feeding the n-butene-containing feed gas stream a and an oxygen-containing gas into ...  
WO/2018/230844A1
The present invention provides a fouling prevention method and a method for olefin oligomerization, wherein in the method for olefin oligomerization, a predetermined anti-fouling agent is added, thereby minimizing the production of stick...  
WO/2018/226911A1
Optimized, heat-integrated methods and systems are provided to produce multiple, high-value products from oil shale, while minimizing overall energy and water usage. A method for producing multiple products from oil shale comprises: feed...  
WO/2018/226466A1
The invention provides a high permeance and high selectivity facilitated transport membrane comprising a very small pore, nanoporous polyethersulfone (PES)/polyvinylpyrrolidone (PVP) blend support membrane, a hydrophilic polymer inside t...  
WO/2018/225908A1
The present invention provides an ethylene separation process in which a preexisting deethanizer column is provided at the upper end thereof with an additional deethanizer column and an acetylene converter from which an ethylene stream w...  
WO/2018/222527A1
A process and an apparatus are disclosed for a compact processing assembly to improve the recovery of C2 (or C3) and heavier hydrocarbon components from a hydrocarbon gas stream. The preferred method of separating a hydrocarbon gas strea...  
WO/2018/222526A1
A process and an apparatus are disclosed for a compact processing assembly to improve the recovery of C2 (or C3) and heavier hydrocarbon components from a hydrocarbon gas stream. The preferred method of separating a hydrocarbon gas strea...  
WO/2018/221785A1
The present invention relates to a method for collecting a hard olefin, the method being capable of: achieving the increase in production of propylene and the improvement of processing unit requirement through the input of steam into a 5...  
WO/2018/219996A1
Process for preparing butadiene from n-butenes comprising the steps: A) provision of an input gas stream a1 containing n-butenes, B) introduction of the input gas stream a1 containing n-butenes, a gas containing oxygen and a cycle gas st...  
WO/2018/217327A1
Methods for the production of para-xylene include flowing a xylenes-containing stream comprising PX, meta-xylene (MX), and ortho-xylene (OX), to a first crystallization stage. In addition, the methods include lowering a temperature of th...  
WO/2018/217337A1
Systems and methods are provided for integration of an aromatic formation process for converting non-aromatic hydrocarbon to an aromatic product and subsequent methylating of a portion of the aromatic product to produce a methylated prod...  
WO/2018/217924A1
The present disclosure provides methods and systems for producing an olefin, such as ethylene and propylene. A method for producing an olefin can comprise injecting an oxidizing agent and methane into an oxidative coupling of methane (OC...  
WO/2018/212812A1
The present disclosure relates to processes for improved yields of propylene via metathesis, primarily from the conversion of C4 and C5 + olefins obtained from steam or fluid catalytic cracking of hydrocarbons. In particular, the present...  
WO/2018/213121A1
A co-cast thin film composite flat sheet membrane is provided that comprises an asymmetric porous non-selective support layer with a thickness of 10-50 micrometers and an asymmetric integrally skinned polyimide-containing selective layer...  
WO/2018/211036A1
The invention relates to a method which comprises injecting a residual current (28) into a flash vessel (30) so as to form an overhead gaseous stream (32) and a bottoms liquid stream (34) and injecting the bottoms stream (34) into a dist...  
WO/2018/206417A1
The invention relates to an improved adsorbent for separating para-xylene from a mixture of xylene isomers, characterised in that the adsorbent contains a barium-containing zeolite of the faujasite type, at least 4.0% of the exchangeable...  
WO/2018/208163A1
The present invention concerns a process and system for producing and isolating a fraction of monocyclic aromatic compounds from a gasification gas. The process comprises (a) contacting the gas with a catalyst capable of converting ethyl...  
WO/2018/209362A1
Silver ionomers of fluorinated polymers are useful for separating alkenes from other compounds such as nitrogen, oxygen, carbon dioxide, and methane. In many instances the selectivities between the alkenes and other compounds are very hi...  
WO/2018/207038A1
Methods for the selective hydrogenation of acetylenic compounds in a product stream that includes isoprene. A method of selectively hydrogenating an acetylenic hydrocarbon in the presence of isoprene may include obtaining a hydrocarbon m...  
WO/2018/198072A1
Processes to selectively crack alkyne compounds from a hydrocarbon stream including olefinic and di-olefinic compounds are described. The process includes contacting the hydrocarbon stream with a supported CuO catalyst under conditions s...  
WO/2018/200694A1
A method for separating CO2 from C2 to C5 alkanes includes introducing a first stream including C2 to C5 alkanes and CO2 into a first separation zone, the first separation zone including a hydrocarbon solvent, and separating the first st...  
WO/2018/195037A1
Processes and apparatuses for producing para-xylenes are provided. The processes comprises providing a hydrocarbon stream comprising C7+ hydrocarbons. The hydrocarbon stream is separated to provide a C8 aromatics stream and an ortho-xyle...  
WO/2018/189097A1
The present invention relates to a process for oxidative coupling of methane (OCM), comprising the steps of: (a) contacting, in a reactor, oxygen and methane with an OCM catalyst, resulting in a reactor effluent comprising ethylene, etha...  
WO/2018/185629A1
A process for producing natural gasoline. The process includes increasing the n-pentane concentration of debutanized natural gasoline. The process may include a first concentration process that includes distillation and a second concentr...  
WO/2018/185310A1
The invention relates to a method (100, 200) for obtaining one or more olefins, wherein a gas mixture which contains hydrogen, methane, carbon monoxide, and hydrocarbons which boil at a higher temperature than methane is formed using an ...  
WO/2018/185628A1
A method of producing methyl tertiary butyl ether (MTBE) and propylene is disclosed. The method involves the use of a crude C4 stream and the integration of a MTBE synthesis process and a cracking process. The method may include processi...  
WO/2018/185613A1
The present invention relates to an additive composition for controlling and inhibiting polymerization of monomers, wherein the composition comprises a combination of (a) a phenol compound comprising catechol compound with (b1) an alipha...  
WO/2018/177498A1
The invention relates to the extraction of organic compounds from mixtures of said compounds with water, using a nanoporous carbon membrane. The invention can be used in any field where it is desired to separate an organic compound of in...  
WO/2018/175388A1
The invention relates to a system, method and apparatus for removing heavies from natural gas. Natural gas and an external rich reflux gas feed are processed in a single column refluxed absorber. A bottoms stream is routed to a first hea...  
WO/2018/173929A1
Provided is a method for separating hydrocarbon compounds, the method comprising a separation step for supplying mixed fluid that includes two or more hydrocarbon compounds to one surface side of a separation membrane that includes a zeo...  
WO/2018/175405A1
The invention relates to various nonlimiting embodiments that include methods, apparatuses or systems for processing natural gas comprising a heavies removal column processing natural gas and light oil reflux. The overhead stream goes to...  
WO/2018/173676A1
Provided is a method for purifying propylene from a raw material comprising propylene and impurities. In an absorption column 1 having a temperature adjustment function, a first step is carried out in which the raw material is placed in ...  
WO/2018/166961A1
The invention relates to a method for obtaining pure 1,3-butadiene from a raw C4 cut, said 1,3-butadiene having a specified maximum content of at least one low-boiling fraction and a specified maximum content of 1,2-butadiene, in each ca...  
WO/2018/163828A1
This hydrocarbon production method for producing hydrocarbons from a hydrocarbon mixture comprises: a first extractive distillation step for extracting and distilling a substance to be extractively distilled to obtain a fraction (A) that...  
WO/2018/165531A1
A method for reducing the mutagenicity of polycyclic aromatic compounds (PAC's) having one or more bay regions which involves alkylating the PAC's with an alkylating agent in the presence of a catalyst to lower the mutagenicity down to a...  
WO/2018/156731A1
Compositions and methods are described for self-assembled polymer materials having at least one of macro, meso, or micro pores.  
WO/2018/148145A1
A process for producing ethylene comprising: (a) reacting a reactant mixture in a reactor to yield a product mixture, wherein the reactor comprises a catalyst, wherein the reactant mixture comprises ethane, oxygen, and a chlorine interme...  
WO/2018/143041A1
Provided is an isolation and recovery method for isoprene. The method makes it possible to reduce the amount of polymers of isoprene generated when isoprene is isolated and recovered from a mixed fluid that includes isoprene. According t...  
WO/2018/143042A1
Provided is an isolation and recovery method for 1,3-butadiene. The method makes it possible to reduce the amount of polymers of 1,3-butadiene generated when 1,3-butadiene is isolated and recovered from a mixed fluid that includes 1,3-bu...  
WO/2018/144740A1
A method including contacting an organic stream with water and carbon dioxide, whereby sodium is extracted from the organic stream, and separating an aqueous sodium salt-containing phase from an organic phase comprising a reduced sodium ...  
WO/2018/138100A1
The invention relates to a method for obtaining pure 1,3-butadiene from a raw C4 cut by extractive distillation with a selective solvent, wherein (a) the raw C4 cut is introduced into a predistillation column, a first low-boiling fractio...  

Matches 1 - 50 out of 8,858