dampfkrack facility and method with controlled injection of solid particles in a abschreck exchangers

摘要

PCT No. PCT/FR95/01721 Sec. 371 Date Jun. 25, 1997 Sec. 102(e) Date Jun. 25, 1997 PCT Filed Dec. 22, 1995 PCT Pub. No. WO96/20259 PCT Pub. Date Jul. 4, 1996A facility and a process for steam cracking include controlled injection of solid particles into a transfer line exchanger (3). The particles are injected via injection lines, numbering between 1 and 8, just upstream of an impact-diffuser (6) comprising solid surfaces disposed on either side of the line for transfer of the cracked gases to the exchanger; this impact-diffuser is located in the inlet cone (2) of the exchanger, is permeable to the gases via a plurality of passages and at least 70% opaque viewed from the transfer line.