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1. (WO2011095759) SEPARATION OF GASES
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Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2011/095759    International Application No.:    PCT/GB2011/000074
Publication Date: 11.08.2011 International Filing Date: 21.01.2011
IPC:
C01B 3/50 (2006.01), C01B 3/52 (2006.01), F25J 3/02 (2006.01), F25J 3/06 (2006.01)
C CHEMISTRY; METALLURGY
01
INORGANIC CHEMISTRY
B
NON-METALLIC ELEMENTS; COMPOUNDS THEREOF
3
Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
50
Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification
C CHEMISTRY; METALLURGY
01
INORGANIC CHEMISTRY
B
NON-METALLIC ELEMENTS; COMPOUNDS THEREOF
3
Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
50
Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification
52
by contacting with liquids; Regeneration of used liquids
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
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
06
by partial condensation
Applicants: BAILEY, Micheal Edward [GB/GB]; (GB) (For US Only).
CONSONNI, Stefano [IT/IT]; (IT) (For US Only).
FORSYTH, Jonathan Alec [GB/GB]; (GB) (For US Only).
GATTI, Manuele [IT/IT]; (IT) (For US Only).
MARTELLI, Emanuele [IT/IT]; (IT) (For US Only).
MORYI, Yasushi [JP/JP]; (JP) (For US Only).
OGURA, Kazumasa [JP/JP]; (JP) (For US Only).
VIGANO, Federico [IT/IT]; (IT) (For US Only).
BP ALTERNATIVE ENERGY INTERNATIONAL LIMITED [GB/GB]; Chertsey Road Sunbury-on-Thames Middlesex TW16 7BP (GB) (For All Designated States Except US)
Inventors: BAILEY, Micheal Edward; (GB).
CONSONNI, Stefano; (IT).
FORSYTH, Jonathan Alec; (GB).
GATTI, Manuele; (IT).
MARTELLI, Emanuele; (IT).
MORYI, Yasushi; (JP).
OGURA, Kazumasa; (JP).
VIGANO, Federico; (IT)
Agent: MURRAY, Elisabeth Anne; BP International Limited Global Patents And Technology Law Chertsey Road Sunbury-on-Thames Middlesex TW16 7LN (GB)
Priority Data:
1001710.1 02.02.2010 GB
10250761.3 13.04.2010 EP
Title (EN) SEPARATION OF GASES
(FR) SÉPARATION DE GAZ
Abstract: front page image
(EN)A process for separating sour shifted synthesis gas feedstock into liquid carbon dioxide, a gaseous hydrogen-containing gas and separated sulphur-containing components includes the steps of a. scrubbing the sour shifted gas elevated pressure with an alcohol solvent in a first scrubber and separately recovering an alcohol stream containing the sulphur-containing components and a sweet shifted gas; b. thereafter cooling the sweet shifted gas to a temperature and elevated pressure at which the carbon dioxide contained therein condenses and a two-phase gas- liquid mixture is formed; c. separating the two-phase mixture of stage (b) into separate liquid carbon dioxide and gaseous hydrogen-containing fractions in a fractionation unit; d. extracting residual carbon dioxide from the separated gaseous hydrogen- containing fraction by scrubbing the gaseous hydrogen-containing fraction at elevated pressure with an alcohol solvent in a second scrubber and recovering an alcohol stream containing carbon dioxide; e. feeding the alcohol stream containing carbon dioxide produced in step (d) to the first scrubber and f. warming and expanding the scrubbed gaseous hydrogen-containing fraction using at least one heat exchanger to exchange heat with the mixture of step (b) and at least one turbo-expander capable of recovering mechanical work The process described may be used in for example Integrated Gasification Combined Cycles (IGCC) where the source of fuel is coal or low grade carbon sources such as lignite, tar sands and shale oil.
(FR)Le procédé ci-décrit permettant de séparer une charge de gaz de synthèse à l'eau corrosif en dioxyde de carbone liquide, gaz contenant de l'hydrogène gazeux et composants soufrés séparés comprend les étapes consistant à : a. laver le gaz à l'eau corrosif à pression élevée avec un solvant de type alcool dans un premier laveur et récupérer séparément un flux d'alcool contenant les composants soufrés et un gaz à l'eau non corrosif ; b. puis refroidir le gaz à l'eau non corrosif à une température et à une pression élevée auxquelles le dioxyde de carbone qu'il contient se condense et un mélange gaz-liquide biphasique se forme ; c. séparer le mélange biphasique de l'étape (b) en fractions distinctes de dioxyde de carbone liquide et fractions contenant de l'hydrogène gazeux dans une unité de fractionnement ; d. extraire le dioxyde de carbone résiduaire subsistant dans la fraction contenant de l'hydrogène gazeux par lavage de ladite fraction contenant de l'hydrogène gazeux avec un solvant de type alcool dans un second laveur et récupérer un flux d'alcool contenant le dioxyde de carbone ; e. charger le flux d'alcool contenant le dioxyde de carbone obtenu à l'étape (d) dans le premier laveur et f. réchauffer et détendre la fraction contenant de l'hydrogène gazeux lavée à l'aide d'au moins un échangeur thermique pour échanger la chaleur avec le mélange de l'étape (b) et d'au moins un détendeur à turbine capable de récupérer le travail mécanique. Le procédé ci-décrit peut être utilisé, par exemple, dans des cycles combinés de gazéification intégrés (IGCC) où la source de combustible est le charbon ou des sources de charbons de mauvaise qualité tels que le lignite, les sables asphaltiques et l'huile de schiste.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Org. (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (EAPO) (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (OAPI) (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)