生产1吨电石约需消耗3450 kw·h的电、0.6吨的焦炭和0.9吨的石灰石。
由 CaO+3C=CaC2+CO 得 需要石灰石为1x56/64吨需要焦碳是为1x36/64吨
CaO+3C=CaC2+CO56 36 64x y 156/x=36/y=64/1要氧化钙：x=56/64=0.875吨要焦炭：y=36/64=0.5625吨
