公开(公告)号：US3573012A

公开(公告)日：1971-03-30

申请号：US3573012D

申请日：1969-02-20

Applicant: SELAS CORP OF AMERICA

Inventor： KITZEN MAURICE R ,  WALL FRASER M

IPC: C07C4/04 ,  C01B2/14

CPC classification number: C07C4/04 ,  C10G9/14

Abstract: HYDROCARBON FEED STOCKS ARE CRACKED BY PASSING THEM IN A STRAIGHT LINEAR PATH THROUGH ELONGATED EXTERNALLY HEATED TUBES OF OPEN CROSS-SECTION, WITH A RESIDENCE TIME AT ABOUT 650*C. OR HIGHER OF LESS THAN 0.5 SECOND, PREFERABLY LESS THAN ABOUT .1-.4 SECOND, A PRESSURE DROP OF ABOUT 3-5 P.S.I. PER TUBE AND A TUBE SKIN TEMPERATURE OF ABOUT 1000*-1200*C.

公开(公告)号：US3221797A

公开(公告)日：1965-12-07

申请号：US32451163

申请日：1963-11-18

Applicant: SELAS CORP OF AMERICA

Inventor： WALL FRASER M

IPC: F23D11/00 ,  F23D14/12

CPC classification number: F23D14/125 ,  F23D11/00 ,  F23D11/002