Anhydrous Carbon Pellets—An Engineered CPC Raw Material

Abstract

The paper reports on a new technology Rain Carbon has been developing to produce an engineered calcined petroleum coke (CPC) product. Agglomeration of green petroleum coke (GPC) fines through either granulation/pelletizing or briquetting can be used to produce a CPC product with improved properties. Pelletizing GPC fines can produce high bulk density pellets hereafter referred to as anhydrous carbon pellets or ACP. ACP densifies when calcined to produce a high bulk density, free flowing CPC product. The spherical particle shape provides improved particle packing densities compared to irregular shaped CPC particles during anode production. The paper will summarize key results including pilot anode properties showing improvements in baked anode density, electrical resistivity and other properties when using calcined ACP. A key benefit is the ability to produce a fully engineered CPC product and Rain Carbon is currently constructing full scale, commercial plants to produce ACP.