Metals - Project Opportunities
There are a number of projects that are available to modernize steel production and provide energy savings. These include:
- Top Pressure Recovery Turbines – Many gas furnaces are operated at high pressure to increase the furnace productivity. A top pressure recovery turbine can be used to generate electricity from the pressure in the top gas. The power output of top-pressure recovery turbine can cover about 30% of electricity necessary for all equipment for the blast furnaces including air blowers.
- Blast Furnace Gas Use – Blast furnace gas is a by-product of the furnace process. About 40% of the coal and coke energy input is converted to blast furnace gas. The heating value of the gas is low, while the CO2 content is high. Therefore, a minimization of blast furnace gas will reduce CO2 emissions. By-product gases can be run to steam boilers or combined heat and power plants. Combined gas turbines and steam cycles can produce electric efficiencies in excess of 40%
- Blast Furnace Slag Use – There are many uses for blast furnace slag – including a high demand in the production of clinker in the cement sector.
- Coke Dry-Quenching – Coke dry-quenching processes result in a large volume of hot gas. This hot gas can be reused in a combined heat and power plant and can generate significant power.
- Overall Energy Efficiency Projects – Process technology can be optimized and changes in lighting or insulation can provide energy savings. Waste heat can also be recovered from production processes to provide power generation.
- Fuel Switching – Conversion to gas based production vs. coal or oil.
A sampling of current projects shows many of these changes are already being implemented:
| United Nations ID | Title | Host country | Average CO2 avoidance per year | Potential value of annual carbon credits |
| CDM0525 | Power generation from waste heat of non-recovery type coke ovens at JSPL | India | 388,000 | €7,760,000 |
| CDM0935 | Installation of waste heat recovery system in a coking plant in Qian´an City, China | China | 217,000 | €4,340,000 |
| CDM1591 | 24MW power generation from coking waste heat generated in the clean-type heat-recovery coke ovens at Shanxi Sinochem Wonder Industries Co.Ltd | China | 132,000 | €2,640,000 |
| CDM2070 | Use of FINEX Off Gas for power generation in Pohang Steel Works | South Korea | 498,000 | €9,960,000 |
| CDM0566 | Waste heat recovery based captive power project at Monnet | India | 118,000 | €2,360,000 |
| CDM1194 | Philippine Sinter Corporation Sinter Cooler Waste Heat Recovery Power Generation Project | Philippines | 62,000 | €1,240,000 |
Defining and developing emission reduction (ER) projects in a manner that can produce saleable emission reduction credits is a complex process. AgCert is one of the most experienced developers of emission reduction projects with 75 registered projects, representing more than 600 project sites internationally. We work with industry and governments to:
- Identify emission reduction project opportunities
- Apply technology to implement the produce emission reductions
- Prepare regulatory filings needed to produce certified emission reductions Monitor the ER project in a manner compliant with high-value Certified ERs (CERs)
- Sell the emission reductions for revenue to be shared with the investors and project site.