Process and apparatus for simulated counter-current production of para-xylene, constituted by two absorbers in series with a total number of 22 or fewer beds
    1.
    发明专利
    Process and apparatus for simulated counter-current production of para-xylene, constituted by two absorbers in series with a total number of 22 or fewer beds 有权
    用于模拟对流生产PARA-XYLENE的过程和装置,由两个共22个或更多的床的系列中的两个吸收器组成

    公开(公告)号:JP2014084323A

    公开(公告)日:2014-05-12

    申请号:JP2013223301

    申请日:2013-10-28

    CPC classification number: C07C7/12 B01D15/1828 C07C7/13 C07C15/08

    Abstract: PROBLEM TO BE SOLVED: To provide a process and an apparatus for producing high-purity (i.e. higher than 99.7%) para-xylene with an amount equal to that produced in a conventional apparatus by using an adsorbent with a volume less than that in the conventional apparatus.SOLUTION: In a process for separating xylene by simulated counter-current (SCC), two absorbers connected in series with a total number Nt of beds of 22 or fewer are used and operated under a predetermined operation condition (temperature, pressure, flow ratio, recirculation ratio, circulation time, average linear velocity, and moisture content). In the process of the invention, there are a case in which the process is conducted by using a new apparatus and another case in which the process is conducted by remodeling an existing apparatus.

    Abstract translation: 要解决的问题:提供一种用于生产高纯度(即高于99.7%)对二甲苯的方法和装置,其量等于常规装置中产生的量,其使用的体积小于 常规装置。解决方案:在通过模拟逆流(SCC)分离二甲苯的方法中,在预定的操作条件(温度,压力,压力,压力等)下使用和操作两个共22个或更少的床数的两个吸收器, 流量比,再循环比,循环时间,平均线速度和含水量)。 在本发明的方法中,存在通过使用新的装置进行处理的情况和通过改造现有装置进行处理的另一种情况。

    Method for selectively hydrogenating gasoline
    4.
    发明专利
    Method for selectively hydrogenating gasoline 有权
    选择性加氢汽油的方法

    公开(公告)号:JP2013209650A

    公开(公告)日:2013-10-10

    申请号:JP2013065284

    申请日:2013-03-27

    Abstract: PROBLEM TO BE SOLVED: To provide a method for selectively hydrogenating gasoline including a polyunsaturated compound and a sulfurous light compound.SOLUTION: A method conjointly allows hydrogenation of polyunsaturated compounds into monounsaturated compounds, increase in weight of sulfurous light compounds by the reaction with unsaturated compounds, and maximization of isomerization of monounsaturated compounds including an external C=C double bond into the internal C=C double bond isomer thereof. The method is carried out using a catalyst containing a group VIb metal and a group VIII metal on a porous carrier, wherein the weight contents of the group VIb element and the group VIII element relative to the weight of the catalyst are 6-18% and 4-12% as oxides respectively, specific surface area of the catalyst is 200-270 m/g, and density of the group VIb element (represented by the ratio of the weight content of the oxide of the group VIb element to the specific surface area of the catalyst) is 4×10to 6×10g/m, and a molar ratio of the group VIII metal to the group VIb metal is 0.6-3 mol/mol.

    Abstract translation: 要解决的问题:提供一种选择性氢化包含多不饱和化合物和亚硫酸化合物的汽油的方法。解决方案:一种方法可以将多不饱和化合物氢化成单不饱和化合物,通过与不饱和化合物的反应增加亚硫酸轻化合物的重量 并且将包含外部C = C双键的单不饱和化合物异构化最大化到其内部C = C双键异构体中。 该方法使用含有VIb族金属和VIII族金属的催化剂在多孔载体上进行,其中VIb族元素和VIII族元素相对于催化剂重量的重量含量为6-18%, 4-12%的氧化物,催化剂的比表面积为200-270m 2 / g,VIb族元素的密度(VIb族元素的氧化物与比表面积的重量比例 催化剂面积)为4×10〜6×10g / m,第Ⅷ族金属与Ⅵb族金属的摩尔比为0.6〜3mol / mol。

    Highly flexible process and apparatus for the simulated counter-current production of para-xylene
    5.
    发明专利
    Highly flexible process and apparatus for the simulated counter-current production of para-xylene 有权
    用于模拟对流生产PARA-XYLENE的高灵敏度工艺和装置

    公开(公告)号:JP2013049052A

    公开(公告)日:2013-03-14

    申请号:JP2012183726

    申请日:2012-08-23

    CPC classification number: B01D15/1821 C07C7/13 C07C15/08

    Abstract: PROBLEM TO BE SOLVED: To provide a flexible process and an apparatus for the simulated conter-current production of para-xylene.SOLUTION: Two adsorbers can be connected in different three modes according to a flow rate of a supplied raw material to be treated and the presence or absence of an maintenance operation oif the one adsorber, in the case of functioning in "high productivity" mode each adsorber has 12 floors (the absorber (a)) has floors L1a to L12a and the absorber (b) has floors L1b to L12b). The two adsorber are separated execute two cycles of cycles comprising 12 steps in parallel. An injection opening Fa (the adsorber (a)) and an injection opening Fb (the adsorber (a)) of the supplied raw material flow, an injection opening Da (the adsorber (a)) and an injection opening Db (the adsorber (b)) of a desorbent flow, a drawing out opening Ea (the adsorber (a)) and a drawing out opening Eb (the adsorber (b)) of an extract flow, a drawing out opening Ra (the adsorber (a)) and the drawing out opening Rb (the adsorber (b) of a raffinate flow are formed in the respective adsorbers.

    Abstract translation: 要解决的问题:提供一种灵活的工艺和用于模拟当量生产对二甲苯的设备。 解决方案:两种吸附器可以根据供给的待处理原料的流量和不同的吸附器的维护操作以不同的三种模式连接,在“高生产率”的情况下 “模式下,每个吸附器具有12层(吸收体(a))具有层L1a至L12a,吸收体(b)具有层L1b至L12b)。 两个吸附器被分离,执行两个循环的循环,包括12个步骤并行。 供给原料流的注入口Fa(吸附器(a))和注入口Fb(吸附器(a)),注入口Da(吸附器(a))和注入口Db(吸附器 b)),抽出口Ea(吸附器(a))和抽出流的拉出口Eb(吸附器(b)),拉出开口Ra(吸附器(a)) 并且在各个吸附器中形成抽出口Rb(吸附剂(b))。(C)2013,JPO&INPIT

    Process and apparatus for simulated counter-current chromatographic separation using two adsorbers in parallel for optimized para-xylene production
    6.
    发明专利
    Process and apparatus for simulated counter-current chromatographic separation using two adsorbers in parallel for optimized para-xylene production 有权
    用于模拟对流色谱分离的方法和装置,使用两个吸附剂并行进行优化的PARA-XYLENE生产

    公开(公告)号:JP2013001709A

    公开(公告)日:2013-01-07

    申请号:JP2012135288

    申请日:2012-06-15

    CPC classification number: B01D15/1821 C07C7/13 C07C15/08

    Abstract: PROBLEM TO BE SOLVED: To solve the problem of limitation to productivity of 24-bed para-xylene production devices without disadvantages of the prior art solutions using two adsorbers, which are connected together in parallel and each have 12 beds, for directly producing high purity para-xylene (i.e., more than 99.7% purity).SOLUTION: A process for simulated counter-current separation of xylenes includes a first adsorption step using two adsorbers each having twelve beds. Each of the adsorbers has a line for introducing a feed (F), a line for introducing an eluent (D), a line for withdrawing an extract (E), and a line for withdrawing a raffinate (R); and is divided into 4 chromatographic zones.

    Abstract translation: 解决的问题:为了解决24床对二甲苯生产装置的生产率的限制问题,没有现有技术的解决方案的缺点,使用两个并联连接在一起并且每个具有12个床的吸附器,用于直接 产生高纯度对二甲苯(即纯度超过99.7%)。 解决方案:二甲苯的模拟逆流分离方法包括使用两个各自具有12个床的吸附器的第一吸附步骤。 每个吸附器具有用于引入进料(F),用于引入洗脱液(D)的管线,用于抽出萃取物(E)的管线)和用于抽出萃余液(R)的管线的管线。 并分为4个色谱区。 版权所有(C)2013,JPO&INPIT

    Method and apparatus for pseudo-moving bed separation by adjusting flow rate of bypass fluid using bypass line in floor of every other stage
    7.
    发明专利
    Method and apparatus for pseudo-moving bed separation by adjusting flow rate of bypass fluid using bypass line in floor of every other stage 有权
    通过在每个其他阶段的地板中使用旁路线调节旁路流量的方法和装置

    公开(公告)号:JP2010247153A

    公开(公告)日:2010-11-04

    申请号:JP2010089975

    申请日:2010-04-09

    Abstract: PROBLEM TO BE SOLVED: To provide a pseudo-moving bed separation method with improved separation efficiency. SOLUTION: The pseudo-moving bed separation method is a separation method of a feed F by pseudo-moving bed adsorption in an SMB equipment and the equipment comprises outside bypass lines L i/i+1 for directly bonding two continuous plates P i and P i+1 , each (suffix i is an even number or an odd number (exclusive of the former)) along the entire length of a column for flushing the plates and each bypass line L i/i+1 has an automated means for controlling the flow rate in the bypass line. With respect to the opening degree of the control means, three rules are regulated as follows: (a) the flow rate is established corresponding to over synchronicity in a range of 15 to 30% in the entire opened bypass line in a zone 1; (b) the flow rate is established corresponding to synchronicity in a range of ±8% in the entire opened bypass line in zones 2 and 3; and (c) the flow rate is established corresponding to over synchronicity in a range of 20 to 40% in the opened bypass line in a zone 4. COPYRIGHT: (C)2011,JPO&INPIT

    Abstract translation: 要解决的问题:提供具有提高的分离效率的伪移动床分离方法。 解决方案:伪移动床分离方法是在SMB设备中通过伪移动床吸附进料F的分离方法,并且设备包括外部旁路管线L i / i + 1 用于直接连接两个连续板P i 和P i + 1 ,每个(后缀i是偶数或奇数(不包括前者))沿着整个 用于冲洗板和每个旁通管线L的柱的长度具有用于控制旁路管线中的流速的自动化装置。 关于控制装置的开度,三个规则被调节如下:(a)在区域1中的整个开启的旁路管线中,对应于15-30%的过度同步性建立流量; (b)在区域2和3中的整个开启的旁路管线中,对应于±8%的范围内的同步性建立流量; 和(c)在区域4的开通旁路管线中,对应于20〜40%范围内的过度同步性确定流量。(C)版权所有(C)2011,JPO&INPIT

    New method for on-line measuring in simulated moving bed, and application to control and adjustment of the bed
    8.
    发明专利
    New method for on-line measuring in simulated moving bed, and application to control and adjustment of the bed 有权
    模拟移动板在线测量的新方法及其控制和调整应用

    公开(公告)号:JP2010210624A

    公开(公告)日:2010-09-24

    申请号:JP2010051202

    申请日:2010-03-09

    Applicant: Ifp イエフペ

    Abstract: PROBLEM TO BE SOLVED: To provide a new method of analysis for on-line concentration measurement of flow composition in hydrocarbon traveling within various separated bands of the simulated moving bed based on simultaneous measurement of Raman spectrum and temperature for a sample in the measuring point.
    SOLUTION: This invention is the method using an immersion probe and a thermocouple to measure concentration of a form existed in one point of a separator which functions in a manner of the simulated moving bed (SMB). The immersion probe is located in one of the flows entering or coming from one point inside the above separator or the separator itself, while the thermocouple is located near the immersion probe. Further the Raman spectrum obtained by using a laser light source which functions in wavelength of 785 nm is also used.
    COPYRIGHT: (C)2010,JPO&INPIT

    Abstract translation: 要解决的问题:提供一种新的分析方法,用于在模拟移动床的各种分离带内行进的烃流中的流动组成的在线浓度测量,基于同时测量拉曼光谱和样品的温度 测点。 解决方案:本发明是使用浸入式探针和热电偶来测量以模拟移动床(SMB)的方式起作用的分离器的一个点中存在的形式的浓度的方法。 浸入式探头位于进入或离开上述分离器或分离器本身内的一点的流中,而热电偶位于浸入式探针附近。 此外,还使用通过使用在785nm波长下起作用的激光光源获得的拉曼光谱。 版权所有(C)2010,JPO&INPIT

    Method for producing high-purity meta-xylene comprising simulated moving-bed adsorption and crystallization
    9.
    发明专利
    Method for producing high-purity meta-xylene comprising simulated moving-bed adsorption and crystallization 有权
    生产包含模拟移动式吸附和结晶的高纯度金属二甲苯的方法

    公开(公告)号:JP2008273968A

    公开(公告)日:2008-11-13

    申请号:JP2008114698

    申请日:2008-04-25

    Applicant: Ifp イエフペ

    CPC classification number: C07C7/13 C07C7/14 C07C15/08

    Abstract: PROBLEM TO BE SOLVED: To construct a method for producing meta-xylene of a purity of at least 99.5% by combining a simulated moving-bed adsorption step and a crystallization step to separate the meta-xylene.
    SOLUTION: The simulated moving-bed adsorption step (LM3) is operated under a mild condition and the purity of the meta-xylene discharged from the adsorbing apparatus is low, generally 75% to 99%. The apparatus has high productivity (amount of meta-xylene produced per unit volume of an adsorbent per unit time) and a raw material is rich in ortho-xylene (for example, 10% or higher) which lead to a decrease of the ratio of a solvent to the raw material. The yield in the crystallization (CD6, CD12) step is improved by concentrating the coming raw material in advance.
    COPYRIGHT: (C)2009,JPO&INPIT

    Abstract translation: 待解决的问题:通过组合模拟的移动床吸附步骤和结晶步骤来构建纯度至少为99.5%的间二甲苯的方法以分离间二甲苯。 解决方案:模拟移动床吸附步骤(LM3)在温和条件下运行,从吸附装置排出的间二甲苯的纯度低,通常为75%至99%。 该装置具有高生产率(每单位时间每单位体积的吸附剂产生的间二甲苯的量),原料富含邻二甲苯(例如10%以上),导致比例降低 对原料的溶剂。 通过预先浓缩未来的原料,提高结晶(CD6,CD12)步骤的产率。 版权所有(C)2009,JPO&INPIT

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