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6 条记录 (耗时 0.011 秒)

    디메틸에테르의 카르보닐화 반응에 의한 메틸아세테이트 직접 합성용 촉매 및 이의 제조방법
    3.
    发明授权
    디메틸에테르의 카르보닐화 반응에 의한 메틸아세테이트 직접 합성용 촉매 및 이의 제조방법 有权
    通过二甲醚碳酸酯的直接合成乙酸甲酯的催化剂及其制备

    公开(公告)号：KR101391571B1

    公开(公告)日：2014-05-02

    申请号：KR1020130000872

    申请日：2013-01-04

    申请人： 성균관대학교산학협력단

    发明人： 배종욱 ,  장인혁

    IPC分类号： B01J23/745 ,  B01J37/08

    CPC分类号： B01J29/655 ,  B01J35/1019 ,  B01J35/1023 ,  B01J37/08

    摘要： The present invention relates to a catalyst for the direct synthesis of methyl acetate by carbonylation reaction of dimethyl ether including ferrierite which is pretreated by 0.1-5 parts by weight of zirconium on the basis of 100 parts by weight of ferrierite and to a method for preparing the same. When carrying out the carbonylation reaction of dimethyl ether using the catalyst of the present invention, by-products can be minimally generated and the selectivity of methyl acetate can be improved. Thus, in a stepwise indirect process of ethanol synthesis in which synthesis gas as a starting material is changed into dimethyl ether and methyl acetate, as the enhancement of the selectivity of methyl acetate by the carbonylation reaction of dimethyl ether is the best contribution to the ethanol yield in the total process, the inactive speed of the catalyst and the conversion to C_1-C_5 hydrocarbons are suppressed at the same time even when the mole ratio of CO to DME is less than 10, and therefore, the ethanol productivity in the entire process can be increased.

    摘要翻译： 本发明涉及一种用于直接合成乙酸甲酯的催化剂，该催化剂是通过基于100份重量的镁碱沸石将0.1-5重量份的锆预处理的包括镁碱沸石在内的二甲醚进行羰基化反应，以及制备方法 一样。 当使用本发明的催化剂进行二甲醚的羰基化反应时，可以最小化产生副产物，并且可以提高乙酸甲酯的选择性。 因此，在将合成气作为原料的乙醇合成的逐步间接方法转化为二甲醚和乙酸甲酯中，通过二甲醚的羰基化反应提高乙酸甲酯的选择性是对乙醇的最佳贡献 即使当CO与DME的摩尔比小于10时，总工艺中的产率，催化剂的无活性速度和C_1-C_5烃的转化率同时被抑制，因此整个方法中的乙醇生产率 可以增加。

    유동상 접촉 분해 중의 ＮＯｘ 방출 감소를 위한 조성물 및공정
    6.
    发明公开
    유동상 접촉 분해 중의 ＮＯｘ 방출 감소를 위한 조성물 및공정 有权
    用于在流体催化裂化过程中减少NO x排放的组合物和方法

    公开(公告)号：KR1020080013939A

    公开(公告)日：2008-02-13

    申请号：KR1020077027491

    申请日：2006-03-24

    申请人： 더블유.알. 그레이스 앤드 캄파니-콘.

    发明人： 지바스마이클에스 ,  크리쉬나무르디미나크쉬선다람 ,  루시어로저제이

    IPC分类号： B01J29/65 ,  B01J29/68 ,  B01J23/06 ,  C10G11/18

    CPC分类号： B01J37/04 ,  B01D53/8628 ,  B01D2255/50 ,  B01D2255/502 ,  B01J29/061 ,  B01J29/072 ,  B01J29/65 ,  B01J29/655 ,  B01J29/68 ,  B01J35/0006 ,  B01J37/0045 ,  B01J2229/42 ,  C10G11/05 ,  C10G11/182

    摘要： Compositions for reduction of NOx generated during a catalytic cracking process, preferably, a fluid catalytic cracking process, are disclosed. The compositions comprise a fluid catalytic cracking catalyst composition, preferably containing a Y-type zeolite, and a NOx reducing zeolite having a pore size ranging from about 2 to about 7.2 Angstoms and a SiO2 to Al2 O3 molar ratio of less than about 500 and being stabilized with a metal or metal ion selected from the group consisting of zinc, iron and mixtures thereof. Preferably, the NOx reducing zeolite particles are bound with an inorganic binder to form a particulate composition. In the alternative, the NOx reducing zeolite particles are incorporated into the cracking catalyst as an integral component of the catalyst. Compositions in accordance with the invention exhibit improved effectiveness for the reduction of NO x emissions released from the regenerator of a fluid catalytic cracking unit operating under FCC process conditions without a substantial change in conversion or yield of cracked products. Processes for the use of the compositions are also disclosed.

    摘要翻译： 公开了用于还原在催化裂化过程中产生的NOx，优选流化催化裂化过程的组合物。 组合物包含优选含有Y型沸石的流化催化裂化催化剂组合物和孔径范围为约2至约7.2埃，SiO 2与Al 2 O 3摩尔比小于约500的NOx还原沸石， 用选自锌，铁及其混合物的金属或金属离子稳定。 优选地，还原NOx还原沸石颗粒与无机粘合剂结合以形成颗粒组合物。 在替代方案中，将还原NO x沸石颗粒作为催化剂的组成成分加入到裂化催化剂中。 根据本发明的组合物对于在FCC工艺条件下操作的流化催化裂化装置的再生器中释放的NO x排放的降低没有显着提高的效果，而没有破裂产物的转化率或产率的显着变化。 还公开了使用组合物的方法。