Particle properties difference between calcined anthracite and calcined petroleum coke were studied in the same time.

考察了煅烧无烟煤和煅烧石油焦颗粒性质的差异。

youdao

There will be a lot of high-temperature smoke and serous power pollution in the production of petroleum coke calcined by rotary oven.

在回转窑煅烧石油焦的过程中，大量的高温烟气和比较严重的粉尘是污染环境的主要因素。

youdao

If calcined petroleum coke could command a premium, why not mattresses, bleach, sardines or processed meats?

FORBES: Northern Exposure