A METHOD FOR GENERATING SYNTHESIS GAS FOR AMMONIA PRODUCTION

CA 03078742 2020-04-08
(12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY
(PCT)
(19) World Intellectual Property
Organization 1 11111 1 111111 11 111111 1 11
11111 1 111 1111 1 1 11 111111 111 1 111 111 11111 1111 11111111111 1 11 1111
International Bureau (10) International
Publication Number
(43) International Publication Date WO 2019/072608 Al
18 April 2019 (18.04.2019) WIPO I PCT
(51) International Patent Classification: CA, CH, CL, CN, CO, CR, CU, CZ,
DE, DJ, DK, DM, DO,
C25B 1/00 (2006.01) C25B 1/04 (2006.01) DZ, EC, EE, EG,
ES, FI, GB, GD, GE, GH, GM, GT, HN,
HR, HU, ED, EL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP,
(21) International Application Number:
KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME,
PCT/EP2018/076616
MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ,
(22) International Filing Date: OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU,
RW, SA,
01 October 2018 (01.10.2018) 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.
(25) Filing Language: English
(84) Designated States (unless otherwise indicated, for every
(26) Publication Language: English
kind of regional protection available): ARIPO (BW, GH,
(30) Priority Data: GM, KE, LR, LS, MW, MZ, NA, RW,
SD, SL, ST, SZ, TZ,
PA 201'7 00568 11 October 201'7 (11.10.201'7) DK
UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ,
TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK,
(71) Applicant: HALDOR TOPSOE A/S [DK/DK]; Haldor EE, ES, FI, FR, GB, GR,
HR, HU, EE, IS, IT, LT, LU, LV,
Topsoes Allé 1, 2800 Kgs. Lyngby (DK). MC, MK, MT, NL, NO, PL, PT, RO,
RS, SE, SI, SK, SM,
(72) Inventor: HANSEN, John Bogild; GL. Strandvej 190 A, TR), OAPI (BF, BJ,
CF, CG, CI, CM, GA, GN, GQ, GW,
3050 Sletten, Humleb k (DK). KM, ML, MR, NE, SN, TD, TG).
(81) Designated States (unless otherwise indicated, for every
kind of national protection available): AE, AG, AL, AM,
AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ,
(54) Title: A METHOD FOR GENERATING SYNTHESIS GAS FOR AMMONIA PRODUCTION
Ii ____________________________________________________________________ 0.
Oxygen
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A .. B 1 ¨ 2 3 4 5 6 7 8
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Recycle t
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11 ______________________________________________________________ BFW
oc Fig. 1
eqi (57) Abstract: In a method for generating ammonia synthesis gas by
electrolysis, comprising feeding a mixture of steam and compressed
h air into the first of a series of electrolysis units and passing the outlet
from one electrolysis unit to the inlet of the next electrolysis unit
together with air, the electrolysis units are run in endothermal mode and the
nitrogen part of the synthesis gas is provided by burning
the hydrogen produced by steam electrolysis by air in or between the
electrolysis units. The electrolysis units are preferably solid oxide
electrolysis cell (SOEC) stacks.
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¨ as to applicant's entitlement to apply for and be granted a
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¨ as to the applicant's entitlement to claim the priority of the
earlier application (Rule 4.17(iii))
¨ of inventorship (Rule 4.17(iv))
Published:
¨ with international search report (Art. 21(3))