使用焦化發(fā)電機組顯著的優(yōu)勢
焦化發(fā)電機組是利用焦化生產(chǎn)過程中產(chǎn)生的副產(chǎn)物 —— 焦爐煤氣(主要成分為氫氣、甲烷等可燃氣體)作為燃料的發(fā)電設備,其核心優(yōu)勢體現(xiàn)在能源高效利用、環(huán)保減排、經(jīng)濟效益提升等多個維度,具體可從以下方面解析:
Coking power generation unit is a power generation equipment that uses coke oven gas (mainly composed of combustible gases such as hydrogen and methane), a byproduct generated during the coking production process, as fuel. Its core advantages are reflected in multiple dimensions such as efficient energy utilization, environmental protection and emission reduction, and economic benefits improvement. Specifically, it can be analyzed from the following aspects:
一、能源循環(huán)利用,降低資源浪費
1、 Energy recycling and reducing resource waste
變廢為寶,提升能源利用率
Turning waste into treasure and improving energy utilization efficiency
焦化廠在煉制焦炭時,每生產(chǎn) 1 噸焦炭約副產(chǎn) 300-400 立方米焦爐煤氣,過去常因難以儲存或利用而直接燃燒(“點天燈”)或排放,造成能源浪費。焦化發(fā)電機組將其轉(zhuǎn)化為電力,使原本廢棄的可燃氣體成為穩(wěn)定的能源供給,能源綜合利用率可提升 20%-30%,相當于每噸焦炭額外產(chǎn)出約 80-120 千瓦時電能,滿足廠區(qū) 30%-50% 的用電需求。
When coking plants refine coke, they produce about 300-400 cubic meters of coke oven gas as a byproduct for every ton of coke produced. In the past, due to difficulties in storage or utilization, it was often directly burned ("lit sky lanterns") or discharged, resulting in energy waste. The coking power generation unit converts it into electricity, making the originally discarded combustible gas a stable energy supply. The comprehensive energy utilization rate can be increased by 20% -30%, which is equivalent to an additional output of about 80-120 kWh of electricity per ton of coke, meeting 30% -50% of the electricity demand in the plant area.
減少對外購能源依賴
Reduce dependence on purchased energy
通過自備發(fā)電,焦化企業(yè)可降低對電網(wǎng)的依賴,尤其在電價波動或電力供應緊張時,能保障生產(chǎn)連續(xù)性。例如,某年產(chǎn) 100 萬噸焦炭的焦化廠,配套 50 兆瓦發(fā)電機組,年發(fā)電量可達 3.5 億千瓦時,相當于節(jié)省標煤 12 萬噸,減少外購電費支出超 2 億元(按工業(yè)電價 0.6 元 / 千瓦時計算)。
By self generating electricity, coking enterprises can reduce their dependence on the power grid, especially during electricity price fluctuations or power supply shortages, ensuring production continuity. For example, a coking plant with an annual output of 1 million tons of coke, equipped with a 50 MW generator set, can generate 350 million kilowatt hours of electricity annually, which is equivalent to saving 120000 tons of standard coal and reducing external electricity expenses by more than 200 million yuan (calculated at an industrial electricity price of 0.6 yuan/kilowatt hour).
二、環(huán)保效益顯著,契合減排目標
2、 Significant environmental benefits, in line with emission reduction targets
減少污染物排放
Reduce pollutant emissions
焦爐煤氣直接排放會釋放硫化物(H?S)、氮化物(NOx)及粉塵等污染物,而發(fā)電機組配備脫硫、脫硝、除塵等環(huán)保設施(如濕法脫硫、SCR 脫硝技術(shù)),可將硫化物去除率提升至 95% 以上,氮氧化物排放濃度控制在 50 毫克 / 立方米以下,滿足嚴苛的環(huán)保標準(如《煉焦化學工業(yè)污染物排放標準》),避免因超標排放產(chǎn)生的罰款(單年最高可達數(shù)千萬元)。
The direct emission of coke oven gas releases pollutants such as sulfides (H ? S), nitrides (NOx), and dust. However, the generator set is equipped with environmental protection facilities such as desulfurization, denitrification, and dust removal (such as wet desulfurization and SCR denitrification technology), which can increase the sulfide removal rate to over 95%, control the nitrogen oxide emission concentration below 50 milligrams per cubic meter, and meet strict environmental standards (such as the "Emission Standards for Pollutants in Coking Chemical Industry"), avoiding fines for excessive emissions (up to tens of millions of yuan per year).
降低碳排放強度
Reduce carbon emission intensity
焦爐煤氣發(fā)電相比燃煤發(fā)電,單位電能碳排放可減少 40%-60%(每千瓦時排放約 0.5-0.7 千克 CO?,而燃煤電廠約 1 千克)。對于年發(fā)電量 3 億千瓦時的機組,年減排 CO?約 15-20 萬噸,相當于種植 800-1000 公頃森林,助力企業(yè)達成碳達峰目標,甚至通過碳交易市場獲取額外收益。
Compared to coal-fired power generation, coke oven gas power generation can reduce carbon emissions per unit of electricity by 40% -60% (emitting about 0.5-0.7 kilograms of CO ? per kilowatt hour, while coal-fired power plants emit about 1 kilogram). For a unit with an annual power generation of 300 million kilowatt hours, the annual emission reduction of CO ? is about 150000 to 200000 tons, which is equivalent to planting 800-1000 hectares of forest, helping enterprises achieve their carbon peak goals, and even obtaining additional income through the carbon trading market.
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