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公开(公告)号：US20190381488A1
公开(公告)日：2019-12-19
申请号：US16471403
申请日：2017-12-21
IPC分类号： B01J29/89 , B01J35/10 , B01J23/72 , B01J23/00 , B01J35/02 , B01J35/00 , B01J37/02 , B01J37/00 , B01J37/08 , F23C10/01 , F23C13/08
摘要： The invention relates to an oxygen carrier solid, its preparation and its use in a method of combustion of a hydrocarbon feedstock by active mass chemical-looping oxidation-reduction, i.e. chemical-looping combustion (CLC). The solid, which is hi the form of particles, comprises an oxidation-reduction active mass composed of metal oxide(s) dispersed in a ceramic matrix comprising at least at least one feldspar or feldspathoid with a melting point higher than 1500° C., such as celsian, and has, initially, a specific macroporous texture. The oxygen carrier solid is prepared from a precursor of the ceramic matrix, obtained from a macroporous zeolitic material with zeolite crystals of a specific size, and a precursor of the oxidation-reduction active mass.
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公开(公告)号：US20180172592A1
公开(公告)日：2018-06-21
申请号：US15834406
申请日：2017-12-07
CPC分类号： G01N21/65 , B01D15/1821 , B01D15/1828 , B01D15/1842 , C07C7/12 , C07C15/08 , G01J3/44 , G01N21/85 , G01N21/8507 , G01N2021/8411 , G01N2021/8416 , G01N2201/1211 , G01N2201/129
摘要： A method for measuring the concentrations of species present at at least one point of a separation unit operating in simulated moving bed (SMB) mode, or a hybrid separation unit employing a step for simulated moving bed (SMB) separation and a step for crystallization, by calibration by inline acquisition of Raman spectra for different mixtures; analysis by inline signal processing of the Raman spectrum.
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3.发明申请公开(公告)号：US20170239642A1
公开(公告)日：2017-08-24
申请号：US15501719
申请日：2015-08-04
申请人： CECA S.A. , IFP ENERGIES NOUVELLES
摘要： The present invention relates to a zeolite absorbent comprising at least one FAU zeolite with hierarchical porosity and comprising barium or barium and potassium, and the external surface area of which is greater than 20 m2·g−1, and the non-zeolite phase content being between 6% and 12% by weight with respect to the total weight of the absorbent. The present invention also relates to the use of such a zeolite absorbent as an adsorption agent, as well as the method for separation of para-xylene from aromatic isomer fractions with 8 carbon atoms.
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4.发明申请公开(公告)号：US20140155673A1
公开(公告)日：2014-06-05
申请号：US14095404
申请日：2013-12-03
IPC分类号： C07C7/13
CPC分类号： C07C7/13 , B01D15/1828 , B01D15/1842 , B01J20/186 , B01J20/28011 , B01J20/2803 , C07C15/08
摘要： This invention describes a process for separation of xylenes for the purpose of the production of high-purity metaxylene, a simulated countercurrent process using at least one adsorber with a limited cumulative total level (Hcu) of adsorbent at a surface velocity (Vsl) that is less than 2 cm/s.
摘要翻译： 本发明描述了用于生产高纯度间二甲苯的二甲苯的分离方法，使用至少一种具有吸附剂的累积总量（Hcu）的吸附剂的表面速度（Vsl）为至少一种吸附剂的模拟逆流方法 小于2厘米/秒。
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5.发明申请PROCESS AND APPARATUS FOR SIMULATED COUNTER-CURRENT CHROMATOGRAPHIC SEPARATION FOR HIGH-PRODUCTIVITY PRODUCTION OF PARAXYLENE 有权用于模拟对流色谱分离的方法和装置，用于生产高生产力的PARAXYLENE公开(公告)号：US20140155672A1
公开(公告)日：2014-06-05
申请号：US14093599
申请日：2013-12-02
IPC分类号： C07C7/12
CPC分类号： B01D15/1828 , B01D15/1842 , B01J20/186 , B01J20/28011 , B01J20/2803 , C07C7/13 , C07C15/08
摘要： The present invention describes a process for the separation of xylenes in simulated counter-current utilising at least one adsorber with a limited cumulated total height (Hcu) of adsorbent and a superficial velocity (Vsl) of less than 2 cm/s.
摘要翻译： 本发明描述了利用吸附剂的有限累积总高度（Hcu）和小于2cm / s的表观速度（Vsl）的至少一个吸附器来分离模拟逆流中的二甲苯的方法。
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公开(公告)号：US20240271780A1
公开(公告)日：2024-08-15
申请号：US18291012
申请日：2022-07-04
发明人： Catherine LAROCHE , Florent GUILLON , Airy TILLAND
CPC分类号： F23C10/04 , F23C9/06 , F23C10/10 , F23C99/00 , F23L7/007 , F23C2206/10 , F23C2900/10001 , F23C2900/10002 , F23C2900/99008
摘要： The present invention concerns a CLC method and plant for a hydrocarbon feedstock, comprising combustion of said hydrocarbon feedstock (8) on contact with an oxygen carrier in form of particles in a reduction zone (R0), and oxidation of the oxygen carrier from reduction zone (R0) on contact with an oxidizing gas, preferably air, in an oxidation zone. According to the invention, gaseous oxygen is released by the oxygen carrier in a sealing device (S1) operating in a dual fluidized bed and positioned in the path of said carrier from the oxidation zone to the combustion zone, and it is mixed with part of the combustion fumes intended to be recycled to the reduction zone. The gaseous oxygen then enables combustion of the residual unburned species that may be contained in the combustion fumes and/or it participates in the combustion of the hydrocarbon feedstock in the reduction zone.
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公开(公告)号：US20220241749A1
公开(公告)日：2022-08-04
申请号：US17622895
申请日：2020-06-11
IPC分类号： B01J20/18
摘要： The invention relates to a process for the liquid-phase separation of xylose from a mixture of C5 and C6 sugars comprising at least xylose and glucose, by adsorption of xylose on a zeolitic adsorbent based on FAU-type zeolite crystals having an Si/Al atomic ratio of less than or equal to 1.5 comprising barium, wherein: said mixture is brought into contact with said adsorbent, by liquid chromatography, to obtain a glucose-enriched liquid phase and a xylose-enriched adsorbed phase; on the one hand, said glucose-enriched liquid phase is recovered and said phase adsorbed on said adsorbent is desorbed by means of a desorption solvent in order to recover the xylose on the other hand.
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公开(公告)号：US20220098499A1
公开(公告)日：2022-03-31
申请号：US17487132
申请日：2021-09-28
摘要： Device and process for converting a feedstock of aromatic compounds, in which the feedstock is notably treated using a fractionation train (4-7), a xylenes separating unit (10) and an isomerization unit (11), and in which a pyrolysis unit (13) treats a second hydrocarbon-based feedstock, produces a pyrolysis effluent feeding the feedstock, and produces a pyrolysis gas comprising CO, CO2 and H2; a WGS water gas shift reaction section (50) suitable for treating the pyrolysis gas and for producing a WGS gas enriched in CO2 and in hydrogen; a CO2 aromatization reaction section (52) suitable for: at least partly treating the WGS gas to produce a hydrocarbon effluent comprising aromatic compounds, and feeding the feedstock with the hydrocarbon effluent.
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9.发明申请公开(公告)号：US20180258013A1
公开(公告)日：2018-09-13
申请号：US15918222
申请日：2018-03-12
CPC分类号： C07C7/13 , B01D15/1828 , B01D2215/023 , C07C15/08
摘要： The present invention describes a process for the simulated moving bed separation of xylenes, in which the operating conditions are optimized by means of a specific relationship between the cycle time and the flow rate of the desorbant.
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公开(公告)号：US20180201555A1
公开(公告)日：2018-07-19
申请号：US15742614
申请日：2016-07-08
CPC分类号： C07C7/13 , B01D15/08 , B01D2253/108 , B01J20/041 , B01J20/186 , B01J20/3085 , C07C15/08 , C07C29/76 , C07C37/82 , C07C201/16 , C07C209/86 , C07C15/02 , C07C39/07 , C07C205/06 , C07C211/50
摘要： The present invention relates to zeolite adsorbents based on agglomerated zeolite X crystals comprising barium, potassium and sodium. These adsorbents find applications in the separation of aromatic C8 isomer fractions and especially xylene.
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