Carbon Blacks Based on Renewable Carbon Black Feedstocks

The carbon black according to clain 1, wherein the carbon black has at least one of the following properties:

• (a) an oil absorption number (OAN) measured according to ASTM D2414-19 of equal or less than 70 mL/100 g;
• (b) a BET surface area determined according to ASTM D6556-19a in a range of from 15 to 400 m2/g;
• (c) a statistical thickness surface area (STSA) determined according to ASTM D6556-19a in a range of from 15 to 300 m2/g;
• (d) a content of polycyclic aromatic hydrocarbons measured according to FDA method No. 63 (22 FDA PAH) of less than 10 ppm;
• (e) a content of toluene-soluble constituents in a range of from 0.01% to 0.20%;
• (f) a sulfur content according to ASTM D1619-20 in a range of from 0% to 2.5%.

A process for producing carbon black through thermal oxidative pyrolysis or cleavage of a carbon black feedstock in a reactor, the process comprising:

• feeding an O2-containing gas stream and a fuel stream comprising combustible material to the reactor;
• subjecting the combustible material to combustion in a combustion step to provide a combustion gas stream, wherein the O2-containing gas stream and the fuel stream comprising combustible material are provided for the combustion step in amounts corresponding to a k factor in the range of from 0.5 to 1.0, wherein the k factor is the ratio of O2 theoretically necessary for stoichiometric combustion of all combustible material in the combustion step to the total O2 provided for the combustion step;
• contacting the carbon black feedstock with the combustion gas stream in a reaction step to form carbon black;
• and
• terminating the carbon black formation reaction in a terminating step;
• wherein the carbon black feedstock comprises a renewable carbon black feedstock.