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    • 2. 发明申请
    • BURNER, FURNACE, AND STEAM CRACKING PROCESSES USING THE SAME
    • 燃烧器,电炉和蒸汽裂解工艺的使用
    • WO2017171942A1
    • 2017-10-05
    • PCT/US2016/066463
    • 2016-12-14
    • EXXONMOBIL CHEMICAL PATENT INC.
    • STEPHENS, GeorgeSPICER, David, B.
    • F23C9/00F23D14/08F23D14/70F23M5/02F23C5/00
    • A burner sub-system, a furnace comprising the same, a fuel combustion process and steam cracking process carried out in the furnace. The burner sub-system comprises a barrier wall segment (60) between the burner tip (20) and the flue-gas recirculation ("FGR") duct (40), effectively blocking direct gas flow between the burner tip and the FGR duct opening, but without encircling the whole burner tip. The presence of the partial barrier wall has the advantage of preventing the temperature inside the FGR duct from becoming too high, while achieving low NOx emissions from the combustion process without overheating the burner tip because of reduced amount of heat reflection to the burner tip compared to an annular barrier wall. The invention is particularly useful in furnaces where hydrogen-rich fuel gas is combusted.
    • 燃烧器子系统,包括其的燃烧炉,燃烧器燃烧过程和蒸汽裂化过程。 燃烧器子系统包括在燃烧器尖端(20)和烟道气再循环(“FGR”)管道(40)之间的屏障壁段(60),有效地阻止燃烧器尖端和FGR管道 开口,但不包围整个燃烧器尖端。 局部阻挡壁的存在具有防止FGR管内部的温度变得太高的优点,同时实现来自燃烧过程的低的NOx排放而没有使燃烧器尖端过热,因为与燃烧器尖端的热反射量相比, 一个环形屏障墙。 本发明在富含氢气的燃料气体燃烧的炉子中特别有用。