One kind of molecular sieve adsorbent and preparation method 5a

The present invention provides a method of preparing an adsorbent and said adsorbent is 5A molecular sieve average grain diameter of 0.2-2.1μm; in dry weight of the adsorbent, the adsorbent is 5A zeolite content in the more than 92% by weight, the sorbent ratio at break of less than 9% 250N. Wherein the method of preparing an adsorbent comprising: containing molecular sieves 4A powder and a binder source pellets obtained by molding the roller; The pellets were dried and baked to obtain matrix pellets; the pre-matrix pellets wet, and then transposed so that the crystal matrix pellets into the binder substantially 4A molecular sieves, 4A molecular sieves to obtain pellets; the pellets washed with 4A molecular sieves, followed by a calcium 5A zeolite exchanged to obtain pellets; the 5A molecular sieve pellets described later, washed with water and dried, then fired. Adsorbent of the present invention has a large amount of adsorption of normal paraffins, high adsorption efficiency, strength and the like advantages.