| 摘要 |
<p>The invention concerns a method for pretreating a crude or semi-refined oil, from a renewable source, consisting of passing said oil into a reactor comprising at least one fixed bed of at least one adsorbent comprising a porous refractory oxide or a silicon carbide, impregnated with one or a plurality of alkaline earth metal phosphates, said adsorbent having, once shaped, an outer surface area strictly greater than 4 pi d2/4, d being the largest characteristic diameter of the cross-section of said adsorbent, and the filling rate of said fixed bed equal to the ratio of the volume filled by said adsorbent to the total volume of the reactor being less than or equal to 64%, said method operating at a temperature of between 130°C and 320°C, at a pressure of between 0.1 and 7 MPa and with a dwell time of said oil on said fixed bed of between 0.1 and 1 hour.</p> |
