ammonia revamping project of using natural gas to replace residual oil
cluster-type residual oil
dispersion of residual oil
excavation of residual oil
Liaohe atmosphoric residual oil
Lowsulphur residual oil
oil residual contamination
pressure reduced residual oil
reduce residual oil in meal
residual oil
剩余油分布
塔河渣油
残渣油
减压渣油
残饼油
剩余油
剩油
渣油
点火
残油
金属钝化剂
残余油
重油
余油
residual oil and gas pool
Residual oil as feedstock