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Reduce GHG emissions

Reduce GHG emissions

  • Condebelt drying for pulp and paper industry

    Type: 
    Technology
    Sectors:
    Objective:

    The Condebelt drying process was patented in 1975. The Condebelt drying process was originally created to increase drying rates of paper. Condebelt drying produces approximately 10-15 times higher drying rates than conventional cylinder drying. These higher drying rates are achieved by higher contact temperatures, higher pressing between the hot surface and paper and relatively low thermal resistance between steam and paper in the Condebelt drying process.

    According to Retulainen (2001), three features of the technology warranted further investigation after the first pilot tests:

  • Clinker replacement

    Type: 
    Technology
    Sectors:
    Objective:

    Cement is a global commodity, manufactured at thousands of plants. The industry is consolidating globally, but large international firms account for only 30% of the worldwide market. The principal and most visible market for cement is the construction industry in a multitude of applications where it is combined with water to make concrete. Most modern civil engineering projects, office buildings, apartments and domestic housing projects use concrete, often in association with steel reinforcement systems.

  • Coke dry quenching for iron and steel sector

    Type: 
    Technology
    Sectors:
    Objective:

    The iron and steel sector is the second-largest industrial user of energy, consuming 616 Mtoe in 2007 and is also the largest industrial source of CO2 emissions. The five most important producers – China, Japan, the United States, the European Union and Russia – account for over 70% of total world steel production. Coke dry quenching appears as the most valid system to reduce air pollution allowing at the same time a remarkable energy recovery or saving, especially when it is associated with coal preheating.

  • FEMS (Factory Energy Management System) / Renkei Control for Utility Facilities

    Type: 
    Product
    Objective:

    Minimizing energy consumption (or CO2 emission) by optimizing equipment selection and load distribution of energy conversion and storage facilties which comprise utility plants.

    Cost of primary energy in utility plants could reach as much as 10 million USD/yr. Typical application includes refineries, petrochemical, paper, cement, textiles, fertilizer, large FA plants, district heating and cooling systems.

  • Area-wide pinch technology

    Type: 
    Product
    Objective:
    Technology:

    Achieving energy conservation of a group of industrial installations in petrochemical complex, through analysis of heat generation and consumption patterns and optimization of heat recovery and usage, including optimization of steam generation level, recovery and utilization of low pressure steam and hot water, heat transfer between plants..

  • Sinter Plant Heat Recovery (Steam Recovery from Sinter Cooler Waste Heat)

    Type: 
    Product
    Objective:

    This device recovers the sensible heat in the hot air with temperature of 250 C to 450 C from a sinter cooler. It comprises mainly; a)boiler/economizer, b)pure water feed device, c)deaerator, d)steam drum, etc.
    After heat exchange with sintered ore of 500 C to 700 C in the cooler, the exhaust gas is introduced to the boiler/economizer to generate steam and is recycled to the cooler.

  • Coke Dry Quenching (CDQ)

    Type: 
    Product
    Objective:

    The heat recovered by inert gas is used to produce steam, which may be used on-site or to generate electricity. Hot coke from the coke oven is cooled in specially designed refractory lined steel cooling chambers by counter-currently circulating an inert gas media in a closed circuit consisting of 1) cooling chamber, 2) dust collecting bunker, 3) waste heat boiler, 4) dust cyclones, 5) mill fan, 6) blowing device (to introduce the cold air from the bottom), 7) circulating ducts.

  • Sinter Plant Heat Recovery (Power Generation from Sinter Cooler Waste Heat)

    Type: 
    Product
    Objective:

    This is a waste gas sensible heat recovery system from sinter cooler to generate electric energy. The system is composed of dust collector, waste heat recovery boiler as steam, circulation fan and power generator by steam turbine.
    The values of cost and effect are obtained from a system configuration of two identical sintering machines, coolers each equipped with waste heat recovery boiler and one unit of electric power generator, to which the steam from two boilers is led.

  • Top Pressure Recovery Turbine (TRT)

    Type: 
    Product
    Objective:

    This system generates electric power by employing the heat and pressure of blast furnace top gas to drive a turbine generator. After the blast furnace gas is used in power generation, it is used as a fuel in iron and steel manufacturing processes. Blast fumace gas (BFG) has a pressure of 0.2-0.236 MPa (2-2.41 kg/cm2) and temperature of approx. 200 C at the fumace top.