HIGH EFFICIENCY REFORMING RECIRCULATION SYSTEM FOR SOLID OXIDE FUEL BATTERY

• Main Authors: ALINGER MATTHEW JOSEPH, BRUCE PHILIP BIEDERMAN, MATTHEW LEHAR, SHAPIRO ANDREW PHILIP
• Format: Patent
• Language: English; Japanese
• Published: 17.11.2016
• Subjects: AIR INTAKES FOR JET-PROPULSION PLANTS; BASIC ELECTRIC ELEMENTS; BLASTING; COMBUSTION ENGINES; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS; ELECTRICITY; ENGINE PLANTS IN GENERAL; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES; GAS-TURBINE PLANTS; HEATING; HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINEPLANTS; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; NOT OTHERWISE PROVIDED FOR; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; STEAM ACCUMULATORS; STEAM ENGINE PLANTS; STEAM ENGINES; SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF; USE OF WASTE HEAT OF COMBUSTION ENGINES; WEAPONS

PROBLEM TO BE SOLVED: To provide a technique of enhancing the plant efficiency of a combined cycle fuel battery system.SOLUTION: A combined cycle power generation apparatus 10 includes a fuel battery such as a solid oxide fuel battery (SOFC) 12 containing an anode for generating exhaust gas. A reformer 14 for mixing hydrocarbon fuel and fuel cell exhaust gas downstream of a fuel battery converts the hydrocarbon fuel partially or wholly into hydrogen (H) and carbon monoxide (CO). A fuel passageway 17 directs a first part of reformed fuel to the entrance of a fuel battery anode 13. A cooler 18 of an organic Rankine cycle (ORC) or the like is configured to optionally remove heat from the rest of the reformed fuel, and feeds the cooled remaining part of the reformed fuel to a bottoming cycle 16 which may be an external combustion or internal combustion engine such as a reciprocating gas engine or a gas turbine driven in response to the cooled remaining part of the reformed fuel.SELECTED DRAWING: Figure 1 【課題】複合サイクル燃料電池システムのプラント効率を高める技術を提供する。【解決手段】複合サイクル発電装置１０は、排ガスを発生させるアノードを含む固体酸化物燃料電池（ＳＯＦＣ）１２等の燃料電池を含む。燃料電池の下流において炭化水素燃料と燃料電池排ガスとを混合する改質器１４は、炭化水素燃料を部分的又は全面的に水素（Ｈ2）と一酸化炭素（ＣＯ）とに変換する。燃料通路１７は、改質燃料の第１の部分を燃料電池アノード１３の入口へと向かわせる。有機ランキンサイクル（ＯＲＣ）等の冷却器１８は、任意で、改質燃料の残りの部分から熱を除去すると共に改質燃料の冷却された残りの部分を、改質燃料の冷却された残りの部分に応動して駆動されるレシプロガスエンジン又はガスタービンなどの外燃又は内燃機関であってよいボトミングサイクル１６に送給するように構成される。【選択図】図１