| abstract |
The present invention seeks to provide a method and process for the preparation of highly stable cylindrical and spherical solid solid adsorbents capable of selectively adsorbing unsaturated hydrocarbons, which adsorb the silver compounds and minimize the amount of such compounds. By starting the mixture consisting of a suitable support having a sufficient surface area, the final adsorbent can be prepared by sequentially impregnating and heat treatment the mixture. Additives (promoters, promoters) may be selectively added during the preparation of such adsorbents.n n n Another object of the invention is to provide a process for selectively separating ethylene and (or) propylene components from a mixture. The mixture is composed of two components consisting of hydrogen (H 2 ), helium (He), methane (CH 4 ), ethane (C 2 H 6 ), or propane (C 3 H 8 ) in addition to ethylene and (or) propylene. It means a multicomponent mixture composed of a component or a part of the above components. In this process, the mixture is passed through a column packed with the present adsorbent at a temperature of 0 ° C. to 100 ° C. and a pressure of 1 to 100 atm, and thereafter, the pressure is reduced or the temperature is increased. Or) a propylene product. |