| 摘要 |
<p>An apparatus and method for moving particulate catalyst particles is provided which comprises charging said catalyst from a catalyst source (10) into a feed hopper (12) maintained at a first pressure; transferring said catalyst from said feed hopper (12) into a conveying means (17) which is at a higher gas pressure than said first pressure and which comprises a conduit which communicates with the feed hopper (12) and with a receiving hopper (19), and a means for introducing a gas stream under pressure into said conduit at or near the portion of said conduit which communicates with the feed hopper (12), said conveying means being adapted to convey said particulate catalyst material under dense phase conditions at a pressure greater than said first pressure, and transporting said catalyst through said conveying means by means of a gas stream flowing through said conduit towards said receiving hopper (19) under dense phase transfer conditions to the receiving hopper. The use of dense phase transfer conditions is beneficial in reducing particle damage. The method and apparatus are particularly useful to charge and discharge reactor vessels. The apparatus is preferably transportable.</p> |
