摘要:
The invention relates to a method for separating meta -xylene from C8 aromatic fractions, using a zeolitic adsorbent based on sodium-exchanged or sodium-and-lithium-exchanged agglomerated crystals of zeolite Y, with a large external surface area.
摘要:
Propane/propylene separation process employing a distillation column and at least one membrane separation unit consisting of one or more modules working in series, said membrane separation unit being placed either upstream, or downstream, or upstream and downstream of the distillation column.
摘要:
The present invention relates to a zeolite absorbent comprising at least one LSX zeolite with faujasite structure (FAU) and containing barium and/or potassium, in which the external surface area of said zeolite absorbent, as measured by nitrogen absorption, is between 20 m 2 ∙g -1 and 100 m 2 ∙g -1 , terminals included. 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.
摘要翻译:本发明涉及包含至少一种具有八面沸石结构(FAU)并含有钡和/或钾的LSX沸石的沸石吸收剂,其中所述沸石吸收剂的外表面积(如通过氮吸收测量的)在20m 2 / m 2 包括端子g-1和100 m2∙g-1。 本发明还涉及这种沸石吸收剂作为吸附剂的用途,以及从具有8个碳原子的芳族异构体部分分离对二甲苯的方法。
摘要:
The invention relates to a method for extracting sulphur compounds from an LPG- or petrol-type hydrocarbon fraction, by means of liquid-liquid extraction with a soda solution, using a pre-treatment unit (2) for pre-treating the feedstock to be treated, placed upstream of the soda-based extraction unit (4), said pre-treatment unit being formed by a first non-continuous pre-treatment reactor followed by a second piston-type continuous reactor operating in piston mode.
摘要:
The invention relates to zeolitic absorbents based on at least one zeolite with hierarchical porosity, containing barium or barium and potassium, to the uses thereof for separating para-xylene from aromatic fractions containing 8 carbon atoms, and to the method for separating para-xylene from aromatic fractions containing 8 carbon atoms.
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 m 2 .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.