4. A UNITARY PROCESS FOR PRODUCING ACETYLENE AND PETROLEUM COKE WHICH COMPRISES ADMIXING, AT A TEMPERATURE FROM 100-230*F. IN AN AGITATED HYDRATION ZONE, CALCIUM CARBIDE PARTICLES WITH A SEPARATELY FORMED DISPERSION OF WATER PARTICLES IN A MOBILE REACTION MEDIUM OF OIL COKING CHARGE STOCK, THE RATIO OF OIL TO WATER IN SAID DISPERSION BEING WITHIN THE RANGE OF FROM ABOUT 1 TO 50 PARTS BY WEIGHT OF OIL PER PART OF WATER, THEREBY FORMING A WET ACETYLENE GAS PHASE AND A LIQUID PHASE CONTAINING SUSPENDED HYDRATED LIME, SEPARATELY WITHDRAWING SAID GAS PHASE AND SAID LIQUID PHASE FROM SAID HYDRATION ZONE, PASSING AT LEAST A PORTION OF SAID LIQUID PHASE CNTAINING SUSPENDED LIME INTO A COKING ZONE MAINTAINED AT TEMPERATURE BETWEEN ABOUT 850* AND ABOUT 1500*F., THEREBY FORMING HYDROCARBON DISTILLATE AND PETROLEUM COKE CONTAINING OCCLUDED LIME, AND WITHDRAWING FROM SAID COKING ZONE SAID HYDROCARBON DISTILLATE AND SAID PETROLEUM COKE CONTAINING OCCLUDED LIME.