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1. (WO1998050742) PROCESS FOR SEPARATING HYDROCARBON GAS CONSTITUENTS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1998/050742 International Application No.: PCT/US1998/007556
Publication Date: 12.11.1998 International Filing Date: 16.04.1998
Chapter 2 Demand Filed: 15.10.1998
IPC:
F25J 3/02 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25
REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION OR SOLIDIFICATION OF GASES
J
LIQUEFACTION, SOLIDIFICATION, OR SEPARATION OF GASES OR GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT
3
Processes or apparatus for separating the constituents of gaseous mixtures involving the use of liquefaction or solidification
02
by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
Applicants:
ELCOR CORPORATION [US/US]; Suite 1000 Wellington Centre 14643 Dallas Parkway Dallas, TX 75240, US (AL, AM, AT, AU, AZ, BA, BB, BE, BF, BG, BJ, BR, BY, CA, CF, CG, CH, CI, CM, CN, CU, CY, CZ, DE, DK, EE, ES, FI, FR, GA, GB, GE, GH, GM, GN, GR, GW, HU, ID, IE, IL, IS, IT, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MC, MD, MG, MK, ML, MN, MR, MW, MX, NE, NL, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, SN, SZ, TD, TG, TJ, TM, TR, TT, UA, UG, UZ, VN, YU, ZW)
CAMPBELL, Wanda, P. [US/US]; US (UsOnly)
WILKINSON, John, D. [US/US]; US (UsOnly)
HUDSON, Hank, M. [US/US]; US (UsOnly)
CUELLAR, Kyle, T. [US/US]; US (UsOnly)
Inventors:
WILKINSON, John, D.; US
HUDSON, Hank, M.; US
CUELLAR, Kyle, T.; US
CAMPBELL, Roy, E.; null
Agent:
MURNANE, John, D. ; Baker & Botts, LLP 30 Rockefeller Plaza New York, NY 10112-0228, US
Priority Data:
08/915,06520.08.1997US
60/045,87407.05.1997US
Title (EN) PROCESS FOR SEPARATING HYDROCARBON GAS CONSTITUENTS
(FR) PROCEDE DE SEPARATION DES CONSTITUANTS DE GAZ D'HYDROCARBURES
Abstract:
(EN) A process for the recovery of ethane, ethylene, propane, propylene and heavier hydrocarbon components from a hydrocarbon gas stream is disclosed. The stream is divided into first (35) and second (32) streams, and the second stream (32) is expanded to the fractionation tower pressure and supplied to the column (18) at a mid-column feed position (33a, 34a). A recycle stream (39) is withdrawn from the tower overhead after it has been warmed and compressed, and is combined with the first stream (35). The combined stream (38) is cooled to condense substantially all of it, and is thereafter expanded to the fractionation tower (18) pressure and supplied to the fractionation tower at a top column feed position (38c). The pressure of the compressed recycle stream and the quantities and temperatures of the feeds to the column are effective to maintain the column overhead temperature at a temperature whereby the major portion of the desired components is recovered.
(FR) La présente invention se rapporte à un procédé permettant de récupérer l'éthane, l'éthylène, le propane, le propylène et des composants d'hydrocarbures plus lourds, à partir d'un courant de gaz d'hydrocarbures. Le courant est fractionné en premier (35) et en second (32)courants, le second courant (32) étant d'abord dilaté jusqu'au niveau de pression de la tour de fractionnement avant d'être amené jusqu'à mi-colonne (33a, 34a). Un courant de recyclage (39) est chauffé, comprimé puis retiré de la tête de la colonne (18) avant d'être combiné au premier courant. Le courant combiné (38) est refroidi jusqu'à quasi-condensation, puis il est dilaté jusqu'au niveau de pression de la tour de fractionnement. Le courant est ensuite amené à la tête (38c) de la tour de fractionnement (18). La pression du courant de recyclage dilaté, ainsi que la quantité et la température de l'alimentation de la colonne sont effectifs de façon à maintenir le distillat de tête à une température à laquelle la partie principale des composants désirés est récupérée.
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Designated States: AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CU, CZ, DE, DK, EE, ES, FI, GB, GE, GH, GM, GW, HU, ID, IL, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, UA, UG, US, UZ, VN, YU, ZW
African Regional Intellectual Property Organization (ARIPO) (GH, GM, KE, LS, MW, SD, SZ, UG, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
NO19995428MXPA/a/1999/009867SG68319VN4365EP0980502VN4751 1-1999-00809
CN1254411CA2286112EA199901005NZ500066AU1998071191DK0980502