The latest order win form Baotou Steel Group is the third expansion of the company’s onsite power plant. Shipments of related equipment to China are planned to begin in 2021.
Making effective use of a by-product
Gas emitted from the coke oven and blast furnace gas (BFG) is a by-product of steelmaking, which can be used at near zero fuel cost for power generation while reducing emissions. However, BFG has a lower calorie rating than natural gas, so advanced technology is needed to ensure stable combustion of the gas turbine.
To this end, MHPS developed special combustors already back in the 1980s and now offers proprietary BFG-fired combined-cycle power generation technology. Various pilot projects have been put in place for steelworks in Japan and around the world, which give MHPS a 60% market share for these turbines.
BFG-fired combined-cycle generating units are made of a gas turbine, heat recovery boiler, steam turbine, power generator, gas compressor, and auxiliary equipment. MHPS said it will manufacture the M701S (DA) X series gas turbines at its Takasago Works in Hyogo Prefecture, and use generators made by Mitsubishi Electric Corp.
Baotou Steel Group, established in 1954, produces iron, steel, rolled steel products, and rare earths. MHPS has already supplied the steelmaker with BFG-fired combined-cycle power generating units for expansion projects in 2005 and in 2012. Two 150 MW class units were delivered and installed at each CCGT project.
The Chinese steelmaker said placed the latest order with MHPS based on the “strength of its record of technological accomplishments, performance and high reliability.”
