EP 0345182 B1 19911106 - PROCESS AND APPARATUS FOR THE FABRICATION OF OLEFINS AND DIOLEFINS BY STEAM CRACKING OF HYDROCARBONS, CONTROLLED BY A SYSTEM COMPRISING AN INFRARED SPECTROPHOTOMETER
Title (en)
PROCESS AND APPARATUS FOR THE FABRICATION OF OLEFINS AND DIOLEFINS BY STEAM CRACKING OF HYDROCARBONS, CONTROLLED BY A SYSTEM COMPRISING AN INFRARED SPECTROPHOTOMETER
Publication
Application
Priority
FR 8807322 A 19880530
Abstract (en)
[origin: US5082985A] The present invention relates to a process and an apparatus for steam cracking a mixture of hydrocarbons comprising passing steam and the mixture of hydrocarbons through at least one heated cracking tube. The process is characterised in that it is controlled by analyzing the mixture of hydrocarbons fed to the cracking tube with an infrared spectrophotometer to determine the absorbances at a number n of wavelengths in the range 0.8 to 2.6 microns and by using the results of this absorbance to determine one or more values V of steam cracking process conditions which will achieve a desired value P of the space time yield of one or more products of the steam cracking reaction.
IPC 1-7
IPC 8 full level
G01N 21/35 (2006.01); C07C 1/00 (2006.01); C07C 4/04 (2006.01); C07C 11/02 (2006.01); C07C 67/00 (2006.01); C10G 9/20 (2006.01); C10G 9/36 (2006.01)
CPC (source: EP KR US)
C10G 9/20 (2013.01 - KR); C10G 9/206 (2013.01 - EP US); C10G 9/36 (2013.01 - KR); C10G 2400/20 (2013.01 - EP US); Y10S 208/01 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE ES GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0345182 A1 19891206; EP 0345182 B1 19911106; AT E69254 T1 19911115; CA 1332923 C 19941108; DE 68900412 D1 19911212; ES 2027068 T3 19920516; FI 892605 A0 19890529; FI 892605 A 19891201; FI 97973 B 19961213; FI 97973 C 19970325; FR 2631957 A1 19891201; FR 2631957 B1 19900831; GR 3003560 T3 19930316; JP H0228293 A 19900130; JP H0774339 B2 19950809; KR 890017339 A 19891215; KR 970007493 B1 19970509; MY 111734 A 20001230; NO 175008 B 19940509; NO 175008 C 19940817; NO 892156 D0 19890529; NO 892156 L 19891201; SG 125792 G 19930709; US 5082985 A 19920121
DOCDB simple family (application)
EP 89430014 A 19890519; AT 89430014 T 19890519; CA 600980 A 19890529; DE 68900412 T 19890519; ES 89430014 T 19890519; FI 892605 A 19890529; FR 8807322 A 19880530; GR 920400017 T 19920113; JP 13733189 A 19890530; KR 890007277 A 19890530; MY PI19890738 A 19890530; NO 892156 A 19890529; SG 125792 A 19921209; US 35421989 A 19890519