Dust content in raw blast furnace gas is about _______________ gm/Nm3; hence it is cleaned to the dust level of about

Question

Dust content in raw blast furnace gas is about _______________ gm/Nm3; hence it is cleaned to the dust level of about < 10 mg /Nm3 before use?

Accepted Answer

15-30. The typical dust content in raw blast furnace gas is around 15-30 gm/Nm3. This high level requires cleaning to below 10 mg/Nm3 for safe use.