公开(公告)号：US06274533B1

公开(公告)日：2001-08-14

申请号：US09460067

申请日：1999-12-14

Applicant: Gyanesh P. Khare

Inventor： Gyanesh P. Khare

IPC: B01J2002

CPC classification number: C10G25/003 ,  B01J20/02 ,  B01J20/28057 ,  B01J20/3078 ,  B01J20/3204 ,  B01J20/3206 ,  B01J20/3236 ,  B01J20/3433 ,  B01J20/3458 ,  B01J2220/42 ,  B01J2220/46 ,  C10G25/12 ,  C10G55/02 ,  C10G67/06 ,  C10G2300/202 ,  C10G2400/02 ,  C10G2400/04 ,  Y10S502/517

Abstract: Novel sorbent systems for the desulfurization of cracked-gasoline are provided which are comprised of a bimetallic promotor on a particulate support such as that formed of zinc oxide and an inorganic or organic carrier. Such bimetallic promoters are formed of at least two metals of the group consisting of nickel, cobalt, iron, manganese, copper, zinc, molybdenum, tungsten, silver, tin, antimony and vanadium with the valence of same being reduced, preferably to zero. Processes for the production of such sorbents are provided wherein the sorbent is prepared from impregnated particulate supports or admixed to the support composite prior to particulation, drying, and calcination. Further disclosed is the use of such novel sorbents in the desulfurization of cracked-gasoline whereby there is achieved not only removal of sulfur but also an increase in the olefin retention in the desulfurized product. Such sorbents can also be utilized for the treatment of other sulfur-containing streams such as diesel fuels.

公开(公告)号：US06184177B2

公开(公告)日：2001-02-06

申请号：US08919429

申请日：1997-08-27

Applicant: Hasso von Blücher ,  Ernest de Ruiter

Inventor： Hasso von Blücher ,  Ernest de Ruiter

IPC: B01J2002

CPC classification number: C01B32/324

Abstract: A method of processing spent ion-exchange resins contaminated with suspended particles, inorganic residues and/or organic foreign matter so as to render the resin ineffective for continued use, by which method this waste material can be processed to produce useful activated carbon particles instead of simply being dumped in a landfill. In accordance with the invention, granular spent organic ion-exchange resin having an ash content of from 5 to 30% is first dried, then carbonized under a substantially inert atmosphere at a temperature of 300 to 900° C., the inert atmosphere containing 0.2 to 4 volume percent oxygen up to 400° C., and finally activated at a temperature of at least 700° C. under a substantially inert atmosphere containing 3 to 50 volume percent steam.

Abstract translation: 处理被悬浮颗粒，无机残留物和/或有机异物污染的废弃离子交换树脂的方法，以使树脂无法继续使用，通过该方法可以处理该废料以产生有用的活性炭颗粒，而不是 只是被丢弃在垃圾填埋场。 根据本发明，灰分含量为5-30％的颗粒废弃有机离子交换树脂首先被干燥，然后在基本上惰性气氛下在300-900℃的温度下碳化，惰性气体含有0.2 至4体积％氧气至400℃，最后在含有3至50体积％蒸汽的基本惰性气氛下在至少700℃的温度下活化。