Heat management method in a high-temperature steam electrolysis [SOEC], solid oxide fuel cell [SOFC] and/or reversible high-temperature fuel cell [RSOC], and high-temperature steam electrolysis [SOEC], solid oxide fuel cell [SOFC] and/or reversible high-temperature fuel cell [RSOC] arrangement

• Main Authors: BRABANDT JORG, POSDZIECH OLIVER, RUGER DIETMAR
• Format: Patent
• Language: Chinese; English
• Published: 01.12.2017
• Subjects: APPARATUS THEREFOR; BASIC ELECTRIC ELEMENTS; CHEMISTRY; ELECTRICITY; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTIONOF COMPOUNDS OR NON-METALS; METALLURGY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

The invention relates to a heat management method in a high-temperature steam electrolysis [SOEC] (fig. 1), to solid oxide fuel cells [SOFCs] (fig. 2) and/or to a reversible high-temperature fuel cell having the SOEC and SOFC modes of operation [rSOC] (fig. 1/2), wherein steam required (1) is supplied from at least one external source and at least one offgas stream (4, 12, 12a) is cooled at least once (3, 11, 18, 35) downstream of the cell [SOEC, SOFC, rSOC] (5, 5a), wherein internal generation of steam required (1, 38) is effected by internal recuperative heating of externally supplied water (47, 48, 51), wherein the energy from the at least one cooling operation (3, 11, 18, 35) of the at least one offgas stream to be cooled (4, 4a, 12, 12a, 17, 20, 34, 36) is used for this purpose, and at the same time the external steam supply (1, 38) is reduced or shut down. The invention further relates to a high-temperature steam electrolysis [SOEC] arrangement, solid oxide fuel cell [SOFC] arrangement and/or reversible