Orders for two blast furnace gas-based combined cycles

April 19, 2020
TMI Staff & Contributors

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Mitsubishi Hitachi Power Systems, Ltd. (MHPS), has received an order from Chinese firm Baotou Iron and Steel Group (Baotou Steel Group) for two blast furnace gas (BFG)-fired 165 megawatt (MW) class gas turbine combined cycle (GTCC) generating units. These systems, with M701S (DA) X series gas turbines as their core component, effectively utilize the gas emitted from the blast furnace (BFG) and coke oven in the steel plant. This is the third expansion project for Baotou Steel Group since 2005; shipments to China are planned to begin in 2021.

The equipment for this project will be delivered to Inner Mongolia Baotou Steel Union Co., Ltd., a Baotou Steel Group company located in the Inner Mongolia Autonomous Region. MHPS and Group companies received the order.

BFG-fired GTCC generating units comprise a gas turbine, heat recovery boiler, steam turbine, power generator, gas compressor, and auxiliary equipment. MHPS will manufacture the M701S (DA) X series gas turbines at its Takasago Works in Hyogo Prefecture, and use generators made by Mitsubishi Electric Corporation.

BFG has a low calorie rating compared to natural gas, so sophisticated technology is required to ensure the stable combustion of the gas turbine. MHPS developed special combustors and other equipment in the 1980s, and has proprietary BFG-fired GTCC power generation technology.

Baotou Steel Group, established in 1954, produces iron, steel, rolled steel products, and rare earths. MHPS previously supplied the company with BFG-fired GTCC power generating units for expansion projects in 2005 and again in 2012 (two 150 MW class units for each project). Baotou placed the order with MHPS based on the strength of its record of technological accomplishments, performance and high reliability.