REMOVAL OF MONOCYCLIC AROMATIC COMPOUNDS (BTEX) FROM A GAS
The present invention relates to an improved process and system for purifying a gas, preferably an energy gas, containing aromatic compounds and isolating a fraction of aromatic compounds from said gas. In the process according to the invention, the gas is contacted with a washing liquid in step (a)...
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| creator | VREUGDENHIL, Berend Joost BOS, Alexander |
| description | The present invention relates to an improved process and system for purifying a gas, preferably an energy gas, containing aromatic compounds and isolating a fraction of aromatic compounds from said gas. In the process according to the invention, the gas is contacted with a washing liquid in step (a), at a temperature of 15 ? 250 ?C, to obtain a purified gas, which is depleted in aromatic compounds, and a spent washing liquid wherein the aromatic compounds are dissolved. The spent washing liquid is stripped in step (b) with a stripping gas comprising at least 50 vol.% steam, to obtain a stripped washing liquid which is advantageously reused in step (a) and a loaded stripping gas comprising the aromatic compounds. The aromatic compounds are separated from the loaded stripping gas in step (c) by condensation of the steam and/or the aromatic compounds comprised in the loaded stripping gas to obtain an immiscible composition and isolating the aromatic compounds therefrom. The cleared stripping gas which is advantageously reused in step (b). [Figure 1] |
| format | Patent |
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In the process according to the invention, the gas is contacted with a washing liquid in step (a), at a temperature of 15 ? 250 ?C, to obtain a purified gas, which is depleted in aromatic compounds, and a spent washing liquid wherein the aromatic compounds are dissolved. The spent washing liquid is stripped in step (b) with a stripping gas comprising at least 50 vol.% steam, to obtain a stripped washing liquid which is advantageously reused in step (a) and a loaded stripping gas comprising the aromatic compounds. The aromatic compounds are separated from the loaded stripping gas in step (c) by condensation of the steam and/or the aromatic compounds comprised in the loaded stripping gas to obtain an immiscible composition and isolating the aromatic compounds therefrom. The cleared stripping gas which is advantageously reused in step (b). 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In the process according to the invention, the gas is contacted with a washing liquid in step (a), at a temperature of 15 ? 250 ?C, to obtain a purified gas, which is depleted in aromatic compounds, and a spent washing liquid wherein the aromatic compounds are dissolved. The spent washing liquid is stripped in step (b) with a stripping gas comprising at least 50 vol.% steam, to obtain a stripped washing liquid which is advantageously reused in step (a) and a loaded stripping gas comprising the aromatic compounds. The aromatic compounds are separated from the loaded stripping gas in step (c) by condensation of the steam and/or the aromatic compounds comprised in the loaded stripping gas to obtain an immiscible composition and isolating the aromatic compounds therefrom. The cleared stripping gas which is advantageously reused in step (b). [Figure 1]</description><subject>CHEMISTRY</subject><subject>FUELS</subject><subject>LUBRICANTS</subject><subject>METALLURGY</subject><subject>PEAT</subject><subject>PERFORMING OPERATIONS</subject><subject>PETROLEUM, GAS OR COKE INDUSTRIES</subject><subject>PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL</subject><subject>PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLEGASES CONTAINING CARBON MONOXIDE</subject><subject>SEPARATION</subject><subject>TECHNICAL GASES CONTAINING CARBON MONOXIDE</subject><subject>TRANSPORTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2023</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZLAKcvX1D3P0UfB3U_D19_N3jnT28XRWcAzy93UMATKc_X0D_EP9XIIVNJxCXCM0FdyAMgqOCu6OwTwMrGmJOcWpvFCam0HOzTXE2UM3tSA_PrW4IDE5NS-1JN430tDS1MDMwNGYoAIAqnInhg</recordid><startdate>20230105</startdate><enddate>20230105</enddate><creator>VREUGDENHIL, Berend Joost</creator><creator>BOS, Alexander</creator><scope>EVB</scope></search><sort><creationdate>20230105</creationdate><title>REMOVAL OF MONOCYCLIC AROMATIC COMPOUNDS (BTEX) FROM A GAS</title><author>VREUGDENHIL, Berend Joost ; BOS, Alexander</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_MY195060A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2023</creationdate><topic>CHEMISTRY</topic><topic>FUELS</topic><topic>LUBRICANTS</topic><topic>METALLURGY</topic><topic>PEAT</topic><topic>PERFORMING OPERATIONS</topic><topic>PETROLEUM, GAS OR COKE INDUSTRIES</topic><topic>PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL</topic><topic>PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLEGASES CONTAINING CARBON MONOXIDE</topic><topic>SEPARATION</topic><topic>TECHNICAL GASES CONTAINING CARBON MONOXIDE</topic><topic>TRANSPORTING</topic><toplevel>online_resources</toplevel><creatorcontrib>VREUGDENHIL, Berend Joost</creatorcontrib><creatorcontrib>BOS, Alexander</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>VREUGDENHIL, Berend Joost</au><au>BOS, Alexander</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>REMOVAL OF MONOCYCLIC AROMATIC COMPOUNDS (BTEX) FROM A GAS</title><date>2023-01-05</date><risdate>2023</risdate><abstract>The present invention relates to an improved process and system for purifying a gas, preferably an energy gas, containing aromatic compounds and isolating a fraction of aromatic compounds from said gas. In the process according to the invention, the gas is contacted with a washing liquid in step (a), at a temperature of 15 ? 250 ?C, to obtain a purified gas, which is depleted in aromatic compounds, and a spent washing liquid wherein the aromatic compounds are dissolved. The spent washing liquid is stripped in step (b) with a stripping gas comprising at least 50 vol.% steam, to obtain a stripped washing liquid which is advantageously reused in step (a) and a loaded stripping gas comprising the aromatic compounds. The aromatic compounds are separated from the loaded stripping gas in step (c) by condensation of the steam and/or the aromatic compounds comprised in the loaded stripping gas to obtain an immiscible composition and isolating the aromatic compounds therefrom. The cleared stripping gas which is advantageously reused in step (b). [Figure 1]</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CHEMISTRY FUELS LUBRICANTS METALLURGY PEAT PERFORMING OPERATIONS PETROLEUM, GAS OR COKE INDUSTRIES PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLEGASES CONTAINING CARBON MONOXIDE SEPARATION TECHNICAL GASES CONTAINING CARBON MONOXIDE TRANSPORTING |
| title | REMOVAL OF MONOCYCLIC AROMATIC COMPOUNDS (BTEX) FROM A GAS |
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