opacity at the stack是什么意思? A trend of decreasing fines in the ecat is a cause for concern when accompanied by a loss problem on the unit. In this case, the amount and particle size distribution of fines in the slurry circuit, flue gas system and stack should be checked to determine where the catalyst is being lost. Two possible interim measures are to increase the fines content in the fresh catalyst and to recycle fines back to the unit. Remember that a finer catalyst can increase unit losses and increase opacity at the stack. A lower ecat fines content together with an increase in average particle size are classic symptoms of damaged cyclones. 个人翻译为:平衡剂的细粉减少趋势是问题的原因同时伴随着装置的损失问题。在这种情况下,应检查油浆,烟气系统和 黑度 以确定 催化剂 是从哪损失的。两种可能的过渡措施是增加新鲜剂的细粉含量和将细粉循环回装置。注意过细的催化剂会增加装置跑损和 烟气黑度 。平衡剂细粉含量低同时评价粒径增加是 旋风分离器 损坏的典型征兆。 这段话是关于催化裂化装置的,opacity at the stack是什么意思?不知道翻译成烟气黑度对不对 查看更多2个回答 . 4人已关注