| 摘要 |
A method and apparatus are disclosed for producing polyolefins by a fluidized gas phase polymerization process utilizing two stacked, substantially vertically aligned, reactors and a substantially vertical product transfer line for transfer of intermediate polyolefin polymer product from the polymerization zone of the upper reactor to the polymerization zone of the lower reactor. This abstract shall not be construed to define or limit in any way the scope of the invention, which is measured solely by the appended claims. |
