A newly down flow reactor with new ways of feed atomization and oil catalyst contact was developed according to the characteristic of ultra short contact time catalytic cracking process.
根据超短接触时间催化裂化工艺的特点，开发了具有新型原料雾化和剂、油接触方式的下行式反应器。
The experiment result showed, the form-film time of up-flow BAF was lower than down-flow BAF, and the kind of microbe in the reactor was abundant.
试验结果表明，上流式曝气生物滤池的挂膜时间略少于下流式曝气生物滤池，两种运行方式的生物相丰富；
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