United States Patent [191
[11] Patent Number: 4,457,364
DiNic0lantoni0 et al. [45] Date of Patent: Jul. 3, 1984 [54] CL()SE.CQUPLE1) TRANSFER LINE 1-[EAT 3,910,347 10/1975 Woebcke ........................... .. 165/142 UN" 1423242: 2412;: 4 A ~ 4 ~ ~-.2222: , , engs e ec [75] Inventors: Arthur R. DiNic0lant0nio, 4,151,217 4/1979 Amano et al. ..... .. 260/683 Whippany, N.J.; Bill Moustakakis, 4,192,658 3/1980 Worrell ......................... .. 165/174X Waterloo, Belgium 73 A _ E R _ _ C FOREIGN PATENT DOCUMENTS [ 1 sslgnm Fi‘;‘r‘;1';m°l§§:{<c N1 ngmeemg °" 1077918 11/1965 United Kingdom . [21] Appl. No.: 359,197 OTHER PUBLICATIONS [22] Filed, Ma,-_ 13’ 1932 ;I63thylene”, Chemical Week, Nov. 13, 1965, pp. 69, 72, [51] Int. Cl.3 .............................................. .. F28F 9/00 Qii and Gas Journal, Feb_ 1, 1971, pp_ 7()_73_ [52] U.S. Cl. ................................ .. 165/134 R; 48/190; 165/174; 165/178; 165/DIG" 14; 285/155 Primary Examiner—~Sheldon J. Richter [58] Field Of Search ................. .. 165/174, 178, 134 R, Attorney, Agent, or Firm_Rebecca Yablonsky 165/DIG. 14; 208/48 Q; 285/155, 176, 132; 48/190, 191, 192 [571 ABSTRACT [56] References Cited In thermal cracking of hydrocarbons, especially steam U S PATENT DOCUMENTS cracking to light olefins, a transfer lme heat exchanger - - unit 1s provided 1n which cracked gas flows from a 2,082,403 6/1937 Larkin ........................... .. 165/174 x fumace into heat exchange tubes. which comprises a 2,762,635 9/1956 Lorber .............. .. 285/155 distributor having an inlet for said gas and two or three 3,357,485 _ I2/1967 O’Sullivan et al. . 165/ 174 diverging branches forming with said distributor 3 wye --------------------- -or tfi-pielclze for gassagil <1)f gas, teach branch havingl along 4 1 - its engt a su stanti y um orm cross-section area 3'456’719 7/1969 Palcmk. ' 165/142 and being in fluid flow communication with a respec3,552,487 1/1971 Tokumltsu . 165/174 t. 1. t b U f d .d t. d 3,574,781 4/1981 Racine et al. . . . . . . . . . . .. 260/683 ggpcsrz ‘r‘;%u:e§' thgrgsy iififirggiieg i§‘t‘(’)sse"t‘;° 3,583,476 6/1971 Woebcke et al. ....... .. 165/1 ’ , ' 3,641,119 2/1972 Kivlen et 81. 260/683 ylcnc 3,67l,198 6/1972 Wallace . . . . . . . . . . . . .. 23/277 3,763,262-10/1973 Sato et al. ......................... .. 260/683 21 Claims, 7 Drawing Figures 4 7 OVAL _ HEADER ';‘ e 23 \1(::;(\ 7.1 \ 1" \ " ' 5 FIG. 2c ,':,’.: CROSSECTIONAL AREA ON LINE C-C .C" 1 1| \ |O .',' \ 3 . ,1! '|‘1, ~_ 6 ’?|,:1“\\' 3 1 I l I I / 1' I‘ / | | V ,’ /I |2 F16. 2B I‘ 1,; i CROSSECTIONAL AREA ON LINE B-B . 1‘ 2 I ' /'5' 14 .3 </ 9 A '
FIG. 2A CROSSECTIONAL AREA on um-: A-A
