Coal Pellet	Coal Granular 4x8	Coal Granular 12x40	Coal Powder

The lignite coal-based powdered activated carbon (LPAC) is manufactured by heart-treatment furnace directly from the raw coal and steam activated. The lignite coal-based activated carbon is softer carbon by above process. Therefore, the lignite coal based activated carbon is in powder form.

The lignite coal-based granular activated carbon (LGAC) is processed through grinding, mixture (with coke tar under 150⁰C-180⁰C), extrusion, carbonization, steam activation, etc. Because of its unique physical properties, lignite based GAC requires substantially less water for backwashing than does bituminous based GAC.

The carbon made from lignite tend to have a large pore diameter with a higher total pore volume (higher molasses number) that makes better suited for the removal of large color body molecules (removal of large molecular weight from chemical compound) from liquids and the removal of sulphur (Hydrogen Sulfide) from vapors. The carbon gives you greater adsorption capacity, high ignition temperature, lower iodine number plus lower density. Lignite based activated carbon is macroporous. It has 20% more total pore volume than bituminous based coal carbon. In the petrochemical industry lignite based carbon has a greater capacity to remove the larger molecules that make up emulsions of oil and grease.