Caulking product fractions device to produce at least one of the drum 12, the caulking unit and at least the bottom-fraction 22, middle fraction 24 and a light fraction (28) to produce a coke product (16) held in the drum a delayed coking process for use in a delayed coking unit comprising a coking product stream 14 is introduced into (20), the step is: a. Introducing to the coking unit product fractionation fresh hydrocarbon feed 18 containing hazardous sulfur and / or nitrogen compounds to a warm-up of the lower part (20); b. Sulfur and / or nitrogen to the mixing zone 30 to form the adsorbent slurry stream 34, at least a portion of at least one adsorbent material 32 and the intermediate fraction (24) to selectively adsorb containing compound (24b) introducing the; c. The step of discharging said bottom fraction (22) from the fractionation apparatus (20); d. The step of adding all or a portion of the slurry stream 34 in the bottom fraction (22) to form a mixed coking unit feed stream (38); e. To heating at a predetermined temperature coking step of introducing the mixed coking unit feed stream (38) containing the adsorbent material (40) to the coking unit is heated; And f. The inside of the step and the delayed coking units drum 12, passing the heated blended feed stream 42 to the delayed coking drum 12 to produce the delayed coking product stream 14. Coke 16 having a sulfur and / or nitrogen compounds adsorbed by a step of depositing the absorbent material 44.