METHOD FOR SEPARATING XYLENES IN A SIMULATED MOVING BED BY MEANS OF A ZEOLITIC ADSORBENT SOLID HAVING A PARTICLE SIZE OF BETWEEN 150 AND 500 MICRONS

• Main Authors: AUGIER FREDERIC, LUTZ CECILE, LEINEKUGEL LE COCQ DAMIEN, LEFLAIVE PHILIBERT, BOUVIER LUDIVINE, PERSILLON QUITTERIE, LAROCHE CATHERINE, SZENDROVICS SYLVIE
• Format: Patent
• Language: English; Korean
• Published: 02.10.2015
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; METALLURGY; ORGANIC CHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; THEIR RELEVANT APPARATUS; TRANSPORTING

본 발명은, 바람직하게 1 ~ 6 의 Si/Al 비를 갖는 포자사이트 제올라이트를 기반으로 한, 응집된 제올라이트성 흡착성 고형물을 이용하는 모사 이동층에 의해 크실렌을 분리하는 방법에 관한 것으로, 상기 고형물은 150 ㎛ ~ 500 ㎛ 의 직경을 가지는 입자들 형태로 사용된다. Process for separating xylenes starting from a feed comprising cuts of isomers of aromatic hydrocarbons containing 8 carbon atoms, in a simulated moving bed, by selective adsorption of a xylene isomer in the presence of a desorbent, by means of particles of agglomerated zeolitic adsorbent based on zeolite crystals with a number-average diameter less than or equal to 1.2 μm, wherein the number-average diameter of said particles of adsorbent is between 150 μm and 500 μm and the mechanical strength measured by the Shell method series SMS1471-74 adapted for agglomerates with a size below 500 μm is greater than or equal to 2 MPa.