公开(公告)号：US20240279480A1

公开(公告)日：2024-08-22

申请号：US18570411

申请日：2022-06-23

申请人： Cabot Corporation

发明人： Daxiang Wang ,  Wei-Ming Chi ,  David S. Crocker ,  Martin C. Green ,  David M. Matheu ,  Rob Davies

IPC分类号： C09C1/60 ,  B01D53/48 ,  B01D53/76

CPC分类号： C09C1/60 ,  B01D53/48 ,  B01D53/76 ,  B01D2257/108 ,  B01D2257/30 ,  B01D2257/504 ,  B01D2257/80

摘要： A method to produce carbonblack includes, in a carbonblack reactor having combustion zone and a reaction zone and a feedstock injection zone therebetween, converting a portion of at least one hydrocarbon feedstock to carbon black in the presence of combustion gases generated by burning a fuel in an oxidation gas mixture containing low amounts of nitrogen to form a product stream in which carbon black is carried by hot gases. The carbon black is separated from the hot gas, which is then processed to produce a flue gas high in carbon dioxide and low in nitrogen at least a portion of which is redirected to at least one of the combustion zone, the reaction zone, and the feedstock injection zone.