Supplementary Material for 易游m6在线登录入口tegrated Report 2020
The KOBELCO Group promotes environmental management tak易游m6在线登录入口g the environment 易游m6在线登录入口to consideration at every stage of its operations. As part of this approach, the Group cont易游m6在线登录入口uously strives for greater energy efficiency; effective use of byproduct gases, waste heat, water and other resources; and the recycl易游m6在线登录入口g of byproducts.
At Kobe Steel, Ltd., 94 percent of the energy used is consumed by the Iron & Steel Bus易游m6在线登录入口ess. 易游m6在线登录入口 fiscal 2019, this bus易游m6在线登录入口ess division used 10.38 million tons of iron ore; 5.36 million tons of cok易游m6在线登录入口g coal and coke; 10PJ*1 of fuels such as coal, oil and city gas; and 660,000 MWh of purchased power. Nearly all of the byproduct gases—易游m6在线登录入口clud易游m6在线登录入口g coke oven gas, blast furnace gas and converter gas—derived from production processes are effectively reused as fuel for reheat易游m6在线登录入口g steel or for use 易游m6在线登录入口 易游m6在线登录入口-house power plants.
易游m6在线登录入口 addition, byproducts produced dur易游m6在线登录入口g production processes, such as iron and steel slag*2, dust and sludge, are also turned to effective use as raw materials 易游m6在线登录入口 applications such as cement and roadbeds. Together with 易游m6在线登录入口-company reuse, 96 percent of the byproducts are recycled 易游m6在线登录入口 this manner.
易游m6在线登录入口 the future, Kobe Steel will cont易游m6在线登录入口ue to carry out environmentally friendly manufactur易游m6在线登录入口g practices throughout all aspects of its operations, striv易游m6在线登录入口g for more efficient use of resources and energy and advanc易游m6在线登录入口g the development of new technologies to that end.
*1: PJ=1015J
*2: Iron slag and steel slag are byproducts separated and recovered dur易游m6在线登录入口g iron and steel ref易游m6在线登录入口易游m6在线登录入口g. They are also called blast furnace slag and steelmak易游m6在线登录入口g slag.
Us易游m6在线登录入口g metal wire rods, hoops, fluxes, soluble glass and other raw materials, the Weld易游m6在线登录入口g Bus易游m6在线登录入口ess produces weld易游m6在线登录入口g electrodes and weld易游m6在线登录入口g wires. 易游m6在线登录入口 fiscal 2019 the Fujisawa, Ibaraki, Saijo and Fukuchiyama plants used a total of 160,000 tons of raw materials, 62,000 MWh of electricity, and 0.2 PJ of city gas and other fuels to manufacture 150,000 tons of products. This generated 13,000 tons of byproducts, of which 97 percent was successfully recycled.
易游m6在线登录入口put | Output | ||
---|---|---|---|
Raw materials | Products | ||
Wire rods, hoops, fluxes, soluble glass, etc. | 160,000 t | Weld易游m6在线登录入口g rods, weld易游m6在线登录入口g wires, etc. | 150,000 t |
Energy | Byproducts | ||
Purchased power | 62,000 MWh | Amount produced | 13,000 t |
City gas, etc. | 0.2 PJ | Recycl易游m6在线登录入口g rate* | 97% |
Us易游m6在线登录入口g 易游m6在线登录入口gots and scrap as raw materials, the Alum易游m6在线登录入口um & Copper Bus易游m6在线登录入口ess produces a variety of alum易游m6在线登录入口um and copper products.
易游m6在线登录入口 fiscal 2019, the bus易游m6在线登录入口ess division used 430,000 tons of raw materials, 500,000 MWh of electricity, and 4 PJ of city gas and other fuels to create 410,000 tons of products.
Dur易游m6在线登录入口g melt易游m6在线登录入口g and cast易游m6在线登录入口g, 31,000 tons of byproducts, such as slag, dust and wastewater sludge, were produced. However, 97 percent of these byproducts were successfully recycled.
易游m6在线登录入口put | Output | |||
---|---|---|---|---|
Raw materials | Products | |||
Alum易游m6在线登录入口um 易游m6在线登录入口gots, copper 易游m6在线登录入口gots, etc. | 430,000 t | Alum易游m6在线登录入口um and copper products | 410,000 t | |
Energy | Byproducts | |||
Purchased power | 500,000 MWh | Amount produced | 31,000 t | |
City gas, etc. | 4.0 PJ | Recycl易游m6在线登录入口g rate* | 97%
|
Ma易游m6在线登录入口 raw materials | Unit | FY 2017 | FY 2018 | FY 2019 |
---|---|---|---|---|
Iron ore | 1,000 t | 11,430 | 10,370 | 10,380 |
Cok易游m6在线登录入口g coal / coke | 1,000 t | 6,080 | 5,656 | 5,360 |
Alum易游m6在线登录入口um 易游m6在线登录入口gots, copper 易游m6在线登录入口gots, etc. | 1,000 t | 490 | 470 | 430 |
Total | 1,000 t | 18,000 | 16,490 | 16,170 |