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    • 32. 发明授权
    • 유사 이동층 크실렌 혼합물 전처리 공정 및 추가의 크실렌이성질화 공정을 포함하는 방향족 화합물의 분리 방법
    • 包含模拟移动床XYLENE混合物预处理方法和附加XYLENE异构化方法的芳族化合物的分离方法
    • KR100843436B1
    • 2008-07-03
    • KR1020070041570
    • 2007-04-27
    • 한화토탈 주식회사
    • 이진석김현철
    • C07C7/12C07C7/14C07C15/08
    • C07C7/12C07C5/27C07C6/126C07C15/08
    • A method for separating aromatic compounds is provided to increase the separation efficiency of para-xylene when separating aromatic compounds by using simulated moving bed adsorption chromatography and crystallization, and to enhance conversion of the remaining xylene mixture to para-xylene. A method for separating aromatic compounds using simulated moving adsorption chromatography and crystallization comprises: a sulforan step for removing non-aromatic compounds from a mixture of C7 or lower aromatic compounds; a benzene/toluene fractionation step(B/T Frac); an aromatic fractionation step(Aro Frac) for separating C8 or higher aromatic compounds; a selective disproportionation step(STDP) of toluene; a transalkylation step; a crystallization para-xylene separation step(Crystallizer); and xylene isomerization step(ISOMAR). The product of the sulfolane step is introduced to the benzene/toluene fractionation step, and toluene separated from the benzene/toluene fractionation step is introduced to the selective disproportionation step of toluene and the transalkylation step. A part of the product of the selective disproportionation step of toluene is introduced back to the benzene/toluene fractionation step and the remaining part thereof is introduced to an additional benzene/toluene fractionation step(B/T Frac2), and toluene separated from the additional benzene/toluene fractionation step is introduced back to the selective disproportionation step of toluene. The xylene mixture separated from the additional benzene/toluene fractionation step is introduced to the crystallization para-xylene separation step, and the remaining xylene mixture other than para-xylene is introduced to the simulated moving bed para-xylene separation step. The xylene mixture separated from the aromatic fractionation step is introduced to the simulated moving bed para-xylene separation step, and the xylene mixture separated from the simulated moving bed para-xylene separation step is introduced to the xylene isomerization step. The method further comprises a simulated moving bed xylene mixture pretreatment step(new SMB) between the aromatic fractionation step and the moving bed para-xylene separation step, and an additional xylene isomerization step(ISOMAR2) to which the xylene mixture separated from the moving bed xylene mixture pretreatment step is introduced.
    • 提供分离芳族化合物的方法,以通过使用模拟移动床吸附层析和结晶分离芳族化合物,提高对二甲苯的分离效率,并提高剩余二甲苯混合物转化为对二甲苯的分离效率。 使用模拟移动吸附色谱法和结晶法分离芳族化合物的方法包括:从C7或更低级芳族化合物的混合物中除去非芳香族化合物的磺基呋喃步骤; 苯/甲苯分馏步骤(B / T Frac); 用于分离C8或更高级芳族化合物的芳族分馏步骤(Aro Frac); 选择性歧化步骤(STDP)甲苯; 烷基转移步骤; 结晶对二甲苯分离步骤(结晶); 和二甲苯异构化步骤(ISOMAR)。 将环丁砜步骤的产物引入苯/甲苯分馏步骤,并将从苯/甲苯分馏步骤分离的甲苯引入到甲苯和烷基转移步骤的选择性歧化步骤中。 将甲苯的选择性歧化步骤的一部分产物引回到苯/甲苯分馏步骤中,将其余部分引入另外的苯/甲苯分馏步骤(B / T Frac2)中,并从附加的甲苯中分离出甲苯 苯/甲苯分馏步骤被引回甲苯的选择性歧化步骤。 将从附加的苯/甲苯分馏步骤分离的二甲苯混合物引入结晶对二甲苯分离步骤中,将除对二甲苯以外的剩余的二甲苯混合物引入到模拟的移动床对二甲苯分离步骤中。 将从芳香分馏步骤分离的二甲苯混合物引入到模拟移动床对二甲苯分离步骤中,并将从模拟移动床对二甲苯分离步骤分离出的二甲苯混合物引入到二甲苯异构化步骤中。 该方法还包括在芳族分馏步骤和移动床对二甲苯分离步骤之间的模拟移动床二甲苯混合物预处理步骤(新的SMB)和另外的二甲苯混合步骤(ISOMAR2),二甲苯混合物从移动床 引入二甲苯混合物预处理步骤。
    • 37. 发明公开
    • 2,6-디메틸나프탈렌의 농축방법
    • 浓缩2,6-二甲基苯乙烯的方法
    • KR1020030007154A
    • 2003-01-23
    • KR1020020040715
    • 2002-07-12
    • 가부시키가이샤 고베 세이코쇼
    • 나카오노보루야마모토고지모토유키마사히로
    • C07C7/12
    • C07C7/13C07C15/24
    • PURPOSE: To provide a method for selectively concentrating 2,6- dimethylnaphthalene from a mixture of dimethylnaphthalene isomers using an adsorption column through maximally eliciting adsorbent performance. CONSTITUTION: This method for selectively concentrating 2,6- dimethylnaphthalene from the mixture of the dimethylnaphthalene isomers using the adsorption column for attaining a high concentration level involves setting the value of (u¬1/3/ε)d¬-5/3£m¬5/3sec¬-1/3kg¬-1| at >=14 to enable the rate of concentration of 2,6-dimethylnaphthalene to 2,7-dimethylnaphthalene to be 2.0 £where, u (m/s) is a linear velocity of the mixture of the dimethylnaphthalene isomer solution to be fed to the adsorption column; ε (kg/m¬3) is a packing density of the adsorbent; and d (m) is a granular size of the adsorbent|.
    • 目的:提供一种使用吸附塔从二甲基萘异构体的混合物中选择性浓缩2,6-二甲基萘的方法,通过最大限度地引发吸附剂性​​能。 构成:使用吸附塔从二甲基萘异构体的混合物中选择性浓缩2,6-二甲基萘以获得高浓度水平的方法包括设定(u-1/3 /ε)d-5/3 m¬5/3sec¬-1 /3kg¬-1 | 在≥14时,使2,6-二甲基萘浓度为2,7-二甲基萘的速度为2.0‰,其中u(m / s)是待进料的二甲基萘异构体溶液的混合物的线速度 吸附塔; ε(kg / m 3)是吸附剂的填充密度; d(m)为吸附剂的粒径。
    • 38. 发明公开
    • 탄화수소 탈수소화 반응구역에서 생성되는 단핵방향족 및 다핵방향족 공동생성물의 분리 및 회수 방법
    • 分离和收集方法,用于单体灭菌反应区中单个芳香族芳族化合物和多种芳香族芳烃的共同产物
    • KR1020000013482A
    • 2000-03-06
    • KR1019980032364
    • 1998-08-10
    • 유오피 엘엘씨
    • 글로버브라이언케이.
    • B01D15/00C07C7/12
    • C07C15/00C07C7/12
    • PURPOSE: A method is provided to separate and to collect a multinuclear aromatic are ne compound common product from a vapor outflow material in a gaseous state. CONSTITUTION: A method for separating and collecting a common product includes: mixing an outflow product of a hydrocarbon dehydrogenation reactive zone containing a dehydrogenated hydrocarbon, a dehydrogenated hydrocarbon, a small amount of mononuclear aromatic are ne and a multinuclear aromatic are ne hydrocarbon with a re-cycling stream containing a mononuclear aromatic are ne compound; and contacting the mixture to a selective absorbent in the mononuclear aromatic are ne compound and a multinuclear aromatic are ne compound for reducing the density of the mononuclear aromatic are ne compound and the multinuclear aromatic are ne and for generating a stream containing the dehydrogenated hydrocarbon and the dehydrogenated hydrocarbon.
    • 目的:提供一种分离和收集来自气态蒸汽流出物质的多核芳香族化合物共同产物的方法。 构成:用于分离和收集普通产品的方法包括:将含有脱氢烃,脱氢烃,少量单核芳族烃和多核芳烃的烃脱氢反应区的流出物混合, 含有单核芳香族的循环流是ne化合物; 并且将该混合物与单核芳族化合物中的选择性吸收剂接触,是一种化合物,多核芳族化合物是用于降低单核芳香族化合物的密度的化合物,并且多核芳族化合物是ne,并用于产生含有脱氢烃和 脱氢烃。