Patent application EP19182328A (EP), filed 2019-06-25
Publication number: EP3757172A1
Title: A PROCESS FOR PRODUCING CARBON BLACK AND RELATED FURNACE REACTOR
Abstract: Suggested is a process for obtaining a carbon black composition preferably of low porosity, comprising or consisting of the following steps:(A) subjecting a hydrocarbon raw material into a high temperature combustion gas stream in order to achieve thermochemical decomposition,(B) cooling the reaction gases and(C) recovering of the carbon black thus obtained,whereinsaid combustion gas stream consists of at least one oxidant and at least one fuel component, andat least a part of said oxidant and/or said fuel component is subjected to an electrical pre-heating step before it is introduced into the pre-combustion chamber to form a high temperature combustion gas stream.
IPC codes: B60C   1/    00            A I
C08K   3/    04            A I
C08L  21/    00            A I
C09C   1/    50            A I
Claims: number: 1
text: A process for obtaining a carbon black composition preferably with low porosity, comprising or consisting of the followingsteps:
number: 2
text: The process of Claim 1, wherein said oxidants are gaseous components selected from the group consisting of oxygen, ozone, hydrogen peroxide, nitric acid, nitrogen dioxide or nitrous oxide or oxidant-containing gas stream encompassing air, oxygen-depleted or oxygen- enriched air, oxygen, ozone, a gas mixture of hydrogen peroxide and air and/or nitro- gen, a gas mixture of nitric acid and air and/or nitrogen, a gas mixture of nitrogen di- oxide or nitrous oxide and air and/or nitrogen, and a gas mixture of combustion products of hydrocarbons and oxidants.
number: 3
text: The process of Claim 1 or 2, wherein said fuel components are gaseous components selected from the group consisting of hydrocarbon, hydrogen, carbon monoxide, natural gas, coal gas, petroleum gas, a petroleum type liquid fuel such as heavy oil, or a coal type liquid fuel such as creosote oil.
number: 4
text: The process of any of Claims 1 to 3, wherein said hydrocarbon raw material is selected from the group consisting of aromatic hydrocarbon encompassing anthracene, CTD (Coal Tar Distillate), ECR (Ethylene Cracker Residue) or petroleum type heavy oils encompassing FCC oil (fluidized catalytic decomposition residual oil) which also can be preheated electrically.
number: 5
text: The process of any of the precedent claims 1 to 4, wherein the reaction is conducted in a furnace reactor comprising at least
number: 6
text: The process of any of the precedent Claims 1 to 5, wherein the oxidant and the fuel component are introduced into the pre-combustion chamber, and said chamber is operated at a temperature ranging from about 1,000 to about 2,500 °C to produce a high temperature combustion gas stream.
number: 7
text: The process of any of the precedent claims 1 to 6, wherein pre-heated oxidant and/or fuel component leaves the pre-heating device with a temperature ranging from about 300 to about 1,300 °C.
number: 8
text: The process of any of the precedent Claims 1 to 7, wherein the formation of the carbon black takes place in the reaction tunnel, said tunnel representing or opening into a Venturi tunnel.
number: 9
text: The process of any of the precedent claims 1 to 8, wherein the carbon black formed in the reaction tunnel is cooled in the terminating zone, effected by introducing water as quenching agent or by means of at least one heat exchanger.
number: 10
text: The process of any of the precedent claims 1 to 9, wherein said at least part of the oxidant and/or fuel component prior to the pre-heating in the pre-heating device is warmed up by transferring thermal energy from the same or another industrial process by means of a heat exchanger.
number: 11
text: The process of Claim 10, wherein said at least part of the oxidant and/or fuel component prior to the pre-heating in the pre-heating device is warmed up by transferring thermal energy from the hot material stream (consisting of carbon black and tailgas) leaving the terminating zone by means of a heat exchanger.
number: 12
text: A carbon black of low porosity obtained or obtainable by the process of Claim 1 characterized by• a STSA surface area of 130 m2/g to 350 m2/g
number: 13
text: The use of the carbon black according to Claim 12 or obtained from the process of Claim 1 as an additive for pigments, polymers, particularly rubber, and tires.
number: 14
text: A furnace reactor for producing carbon black preferably of low porosity comprising or consisting of the followingelements:
Office action: search_report, dated 2020-12-30
Rejection reasons: novelty_epc_54
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Final disposition: pending (2020-12-30)