| 摘要 |
<p>A method and apparatus are disclosed for producing polyolefins by a fluidized gas phase polymerization process utilizing two stacked, substantially vertically aligned, reactors (10, 40) and a substantially vertical product transfer line (70) for transfer of intermediate polyolefin polymer product from the polymerization zone (36) of the upper reactor (10) to the polymerization zone (68) of the lower reactor (40).</p> |
