Kurs loyihasi mavzu

2.3 Ko`mir ifloslanishini kamaytirish
Ushbu bo'lim ko'chirma Ko'mirning ifloslanishini kamaytirish

Ushbu maqola mumkin talab qilish tozalamoq Vikipediya bilan tanishish uchun sifat standartlari. Muayyan muammo: confusing layout - maybe organize sections by solids and gases or technology? Iltimos yordam bering ushbu maqolani yaxshilang Agar imkoningiz bo'lsa. (2020 yil yanvar) (Ushbu shablon xabarini qanday va qachon olib tashlashni bilib oling) Ushbu maqola bo'lishi kerak yangilangan. The reason given is: economics has changed with falling cost of renewables. Iltimos, ushbu maqolani so'nggi voqealarni yoki yangi mavjud ma'lumotlarni aks ettirish uchun yangilang. (Noyabr 2018)

Amerika Qo'shma Shtatlari hukumatining javobgarligi idorasi diagram showing emissions controls at a ko'mir yoqadigan elektr stantsiyasi
Ko'mirning ifloslanishini kamaytirish, sometimes called clean coal, is a series of systems and technologies that seek to mitigate the health and environmental impact of coal; jumladan havoning ifloslanishi dan ko'mir bilan ishlaydigan elektr stantsiyalari, and from coal burnt by og'ir sanoat.
The primary focus is on oltingugurt dioksidi (SO₂₎ va azot oksidlari (YO'Q_x), the most important gases which caused kislotali yomg'ir; va zarrachalar which cause visible air pollution, illness and premature deaths. SO₂ tomonidan olib tashlanishi mumkin tutun gazini kükürtten tozalash va YO'Q₂ tomonidan selektiv katalitik reduksiya (SCR). Particulates can be removed with elektrostatik cho'kmalar. Although perhaps less efficient, ho'l tozalagichlar can remove both gases and particulates. Kamaytirish uchib ketadigan kul reduces emissions of radioaktiv materiallar. Merkuriy emissions can be reduced up to 95%.Ammo capturing carbon dioxide emissions from coal is generally not economically viable.

Standartlar

Local pollution standards include GB13223-2011 (China), India, The Sanoat chiqindilari bo'yicha ko'rsatma (Evropa Ittifoqi) va Toza havo to'g'risidagi qonun (AQSh).

Sun'iy yo'ldosh monitoringi

Satellite monitoring is now used to crosscheck national data, for example Sentinel-5 prekursori has shown that Chinese control of SO₂ has only been partially successful.^[171] It has also revealed that low use of technology such as SCR has resulted in high NO₂ emissions in South Africa and India.

Kombinatsiyalangan tsikli elektr stantsiyalari

Biroz Integratsiyalashgan gazlashtirishning birlashtirilgan tsikli (IGCC) coal-fired power plants have been built with ko'mirni gazlashtirish. Although they burn coal more efficiently and therefore emit less pollution, the technology has not generally proved economically viable for coal, except possibly in Japan although this is controversial.

Uglerodni saqlash va saqlash

Although still being intensively researched and considered economically viable for some uses other than with coal; uglerodni saqlash va saqlash has been tested at the Petra Nova va Chegaraviy to'g'on coal-fired power plants and has been found to be technically feasible but not economically viable for use with coal, due to reductions in the cost of solar PV technology.