Exxon Research & Engineering Co. (Florham Park NJ 02)
인용정보
피인용 횟수 :
7인용 특허 :
0
초록▼
A process for desensitizing a hypersensitive, high activity reforming catalyst for suppression of hydrogenolysis which is particularly acute during the early portion of the period that the catalyst is placed on stream, i.e., at the start-up of a reactor. The catalyst is constituted of a composite wh
A process for desensitizing a hypersensitive, high activity reforming catalyst for suppression of hydrogenolysis which is particularly acute during the early portion of the period that the catalyst is placed on stream, i.e., at the start-up of a reactor. The catalyst is constituted of a composite which includes a Group VIII noble metal hydrogenation-dehydrogenation component, notably platinum, iridium or rhenium, and a sulfurous acid or sulfuric acid component. Hydrogenolysis is suppressed by incorporating within such reforming catalyst at the time of its preparation a sulfurous acid or sulfuric acid component. In another of its aspects the present invention embodies a reforming catalyst or catalyst composite comprising a refractory or inorganic oxide support material, particularly alumina, a Group VIII noble metal hydrogenation-dehydrogenation component, notably platinum, to which iridium or rhenium, and a sulfurous acid or sulfuric acid component have been added to promote the activity and selectivity of the catalysts, and said catalyst is prepared by a method wherein the sulfurous acid or sulfuric acid component is introduced into and deposited throughout said support. Suitably, the reforming catalyst, or composite also contains a halogen component, particularly chlorine and preferably the sulfurous acid or sulfuric acid component is introduced into the support, or catalyst, by impregnating with a liquid solution which contains one or both of these compounds.
대표청구항▼
In a process for preparing a reforming catalyst wherein a Group VIII noble metal hydrogenation-dehydrogenation component in concentration ranging from about 0.01 to about 3 percent, based on the weight of the catalyst, a component comprised of iridium or rhenium, or both, in concentration ranging fr
In a process for preparing a reforming catalyst wherein a Group VIII noble metal hydrogenation-dehydrogenation component in concentration ranging from about 0.01 to about 3 percent, based on the weight of the catalyst, a component comprised of iridium or rhenium, or both, in concentration ranging from about 0.01 to about 3 percent, based on the weight of the catalyst, and a halogen component in concentration ranging from about 0.1 to about 3 percent, based on the weight of the catalyst, composited with an inorganic oxide support, the improvement which comprises incorporating sulfurous acid or sulfuric acid, or both, as a component within said catalyst at the time of its preparation in concentration ranging from about 0.001 to 3 percent, based on the weight of the catalyst, sufficient to increase the activity, or selectivity, or both.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허를 인용한 특허 (7)
Kirch Lawrence S. (Huntingdon Valley PA) Kennelly William J. (Newtown PA), Catalyst compositions and their use for the preparation of methacrolein.
Cosyns Jean (Maule FRX) Gremillon Marc (Paris FRX), Process for manufacturing a group VIII noble metal catalyst of improved resistance to sulfur, and its use for hydrogenat.
Baba, Shigeo; Shibata, Yukio; Kawamura, Takahiro; Takaoka, Hideo; Kimura, Tsuguo; Kousaka, Kazuo; Minato, Yoshihiro; Yokoyama, Naruo; Iida, Kozo; Imai, Tetsuya, Solid strong acid catalyst process for the production of the same and use thereof.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.