METHOD FOR DIRECTLY PRODUCING METHYL ACETATE AND/OR ACETIC ACID FROM SYNGAS

    公开(公告)号:EP3689848A1

    公开(公告)日:2020-08-05

    申请号:EP17926817.2

    申请日:2017-09-29

    摘要: A method for directly producing methyl acetate and/or acetic acid from syngas, whose reaction process is carried out in at least two reaction zones, the method comprises: feeding a raw material containing syngas into a first reaction zone to contact and react with a metal catalyst; allowing an obtained effluent to enter a second reaction zone directly or after the addition of carbon monoxide so as to contact and react with a solid acid catalyst; separating the obtained effluent to obtain product of acetate and/or acetic acid, and optionally returning a residual part to enter the first reaction zone and/or the second reaction zone to recycle the reaction. The present application provides a novel method for directly converting syngas into methyl acetate and/or acetic acid, the method having a simple processing procedure and high product selectivity. According to the method, the product selectivity of the product of methyl acetate or acetic acid is greater than 93%, and the quantity of methyl acetate and acetic acid may be adjusted according to processing, thus the method has great industrial application prospects.

    CU-SAPO MOLECULAR SIEVE, SYNTHESIS METHOD THEREFOR AND CATALYTIC USE THEREOF

    公开(公告)号:EP3586960A1

    公开(公告)日:2020-01-01

    申请号:EP17897284.0

    申请日:2017-02-27

    摘要: Disclosed are a Cu-SAPO molecular sieve with coexisting crystal phases of CHA and GME, a synthesis process therefor and the use thereof in a denitration reaction. A XRD diffraction pattern of the Cu-SAPO molecular sieve shows the characteristic of broad peaks and narrow peaks coexisting. An inorganic framework has the following chemical composition: wCu-(Si x Al y P z )O 2 , wherein x, y and z respectively represent the molar fractions of Si, Al and P; the molar fraction ranges thereof are respectively x = 0.01∼0.28, y = 0.35∼0.55 and z = 0.28∼0.50, with x+y+z = 1; w is the molar number of Cu per mole of (Si x Al y P z )O 2 ; and w = 0.001∼0.124. The synthesized molecular sieve can be used as a catalyst for a selective reduction of NO x .