Adsorption process for oxygen and nitrogen production, hydrogen purification, separating hydrocarbons, removing solvents, mercury vapor, etc. uses adsorbent with some non=homogeneous particles

摘要

An adsorption process for separating components of a gas mixture uses an adsorbent where at least some of the adsorbent particles is non-homogenous. Independent claims are included for the following: (a) An adsorption process for separating components of a gas mixture uses a heterogeneous adsorbent where at least some of the adsorbent particles have a core made of a first material at least partly surrounded by an adsorbent layer that has a different composition. (b) Making particles as in (a). Preferred Features: The particles are spherical. oval or ellipsoidal and are 0.5 - 5.0 mm. The first material forms 15 - 95% of the particle. There may be either a discrete or a gradual change between the two materials. The first material includes metal(s) or ceramic(s).