无烟煤，俗称白煤或红煤。是煤化程度最大的煤。无烟煤固定碳含量高，挥发分产率低，密度大，硬度大，燃点高，燃烧时不冒烟。黑色坚硬，有金属光泽。以脂摩擦不致染污，断口成贝壳状，燃烧时火焰短而少烟。不结焦。一般含碳量在90%以上，挥发物在10%以下。无胶质层厚度。热值约6000-6500千卡/公斤。有时把挥发物含量特大的称做半无烟煤；特小的称做高无烟煤。
Anthracite, commonly known as white coal or red coal. It is the coal with the largest degree of coalification. Anthracite coal has high fixed carbon content, low volatile yield, high density, high hardness, high ignition point, and no smoke when burning. Black is hard with a metallic sheen. It is not stained by grease friction, and the fracture is shell-shaped, and the flame is short and less smoke when burning. No coke. Generally, the carbon content is more than 90%, and the volatile matter is less than 10%. No gum layer thickness. The calorific value is about 6000-6500 kcal/kg. Sometimes the large volatile content is called semi-anthracite; The smallest ones are called high anthracite.