• 专利标题:   Modified ZSM-5 molecular sieve, useful for absorbing and removing nitrogen oxide and toluene in waste gas, comprises graphene oxide and zirconium-sulfur-doped-molecular sieve in which the shape is axial guide hollow column.
  • 专利号:   CN113830785-A, CN113830785-B
  • 发明人:   WU J, ZOU W, REN S
  • 专利权人:   SINOPEC SHANGHAI RES INST PETROCHEMICAL, CHINA PETROLEUM CHEM CORP, CHINA PETROLEUM CHEM CORP SINOPEC
  • 国际专利分类:   B01D053/02, C01B032/198, C01B039/38
  • 专利详细信息:   CN113830785-A 24 Dec 2021 C01B-039/38 202217 Chinese
  • 申请详细信息:   CN113830785-A CN10588089 24 Jun 2020
  • 优先权号:   CN10588089

▎ 摘  要

NOVELTY - Modified ZSM-5 molecular sieve comprises graphene oxide and zirconia, where the shape is axial guide hollow column. The relative crystallinity of the modified ZSM-5 molecular sieve is 85 to 120 %, preferably 100 % to 120 %. USE - The modified ZSM-5 molecular sieve is useful for absorbing and removing nitrogen oxides and toluene in waste gas, where the waste gas is used in printing, tar and other industries. ADVANTAGE - The modified ZSM-5 molecular sieve has high nitrogen oxide and toluene removing efficiency. The method is simple, environment-friendly and pollution-free. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a preparation method of modified ZSM- molecular sieve. DESCRIPTION OF DRAWING(S) - The drawing shows a transmission electron microscope (TEM) of the product.