TWI659925B - 用於鋼生產之複合設備及操作該設備之方法 - Google Patents
用於鋼生產之複合設備及操作該設備之方法 Download PDFInfo
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 33
- 239000010959 steel Substances 0.000 title claims abstract description 33
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 25
- 239000007789 gas Substances 0.000 claims abstract description 191
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 78
- 239000002131 composite material Substances 0.000 claims abstract description 56
- 239000000126 substance Substances 0.000 claims abstract description 49
- 238000006243 chemical reaction Methods 0.000 claims abstract description 42
- 229910052742 iron Inorganic materials 0.000 claims abstract description 39
- 229910001341 Crude steel Inorganic materials 0.000 claims abstract description 35
- 238000004146 energy storage Methods 0.000 claims abstract description 30
- 230000007246 mechanism Effects 0.000 claims abstract description 19
- 239000000571 coke Substances 0.000 claims description 34
- 239000001257 hydrogen Substances 0.000 claims description 27
- 229910052739 hydrogen Inorganic materials 0.000 claims description 27
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 230000005611 electricity Effects 0.000 claims description 11
- 238000005868 electrolysis reaction Methods 0.000 claims description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
- 230000003750 conditioning effect Effects 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 150000002431 hydrogen Chemical class 0.000 claims description 4
- 230000003851 biochemical process Effects 0.000 claims description 3
- 238000002407 reforming Methods 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 2
- 239000003245 coal Substances 0.000 description 18
- 239000000047 product Substances 0.000 description 16
- 238000010248 power generation Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 9
- 229910000805 Pig iron Inorganic materials 0.000 description 8
- 229910002091 carbon monoxide Inorganic materials 0.000 description 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 6
- 229910052757 nitrogen Inorganic materials 0.000 description 6
- 238000003786 synthesis reaction Methods 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 239000003638 chemical reducing agent Substances 0.000 description 4
- 238000004939 coking Methods 0.000 description 4
- 229930195733 hydrocarbon Natural products 0.000 description 4
- 150000002430 hydrocarbons Chemical class 0.000 description 4
- 229910021529 ammonia Inorganic materials 0.000 description 3
- 238000000855 fermentation Methods 0.000 description 3
- 230000004151 fermentation Effects 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 238000005275 alloying Methods 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000001307 helium Substances 0.000 description 2
- 229910052734 helium Inorganic materials 0.000 description 2
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 238000006722 reduction reaction Methods 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 230000032258 transport Effects 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000010310 metallurgical process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 150000002829 nitrogen Chemical class 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 150000003464 sulfur compounds Chemical class 0.000 description 1
- 239000011269 tar Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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Abstract
本發明係有關於一種用以鋼生產之複合設備,其包含用以生產生鐵之一鼓風爐,用以生產粗鋼之一鋼轉化機構,及用於在生產生鐵時及/或在生產粗鋼時產生之氣體的一氣體傳送系統。依據本發明,該複合設備另外具有與該氣體傳送系統連接之一化學設備或生技設備,及用以滿足該複合設備之電力需求之至少一部份的一能量儲存裝置。又,本發明之標的物係一操作該設備之方法。
Description
本發明係有關於用於鋼生產之複合設備及操作該設備之方法。
用以鋼生產之複合設備包含用以生產生鐵之至少一鼓風爐,用以生產粗鋼之一鋼轉化機構,及用於在生產生鐵時及/或在生產粗鋼時產生之氣體的一氣體傳送系統。該複合設備亦可具有一發電設備,該發電設備係設計為一燃氣渦輪機發電設備或燃氣渦輪機與蒸氣渦輪機發電設備且與一氣體一起操作,而該氣體包含在該鼓風爐中生產生鐵時產生之鼓風爐頂氣的至少一部份量及/或在該鋼轉化機構中產生之轉化氣體的一部份量。
生鐵係在該鼓風爐中由鐵礦、例如煤焦之添加劑及例如煤、油、瓦斯、生質、回收廢塑膠或含有碳及/或氫之其他物質的還原劑獲得。CO、CO2、氫及水蒸氣不可避免地產生成為該等還原反應之產物。除了前述組分以外,由該鼓風爐製程中抽出之一鼓風爐頂氣經常具有一高氮含量。該氣體之量及該鼓風爐頂氣之組成係取決於進料及操作模式且容易產生波動。但是,通常鼓風爐頂氣包含
35至60體積%之N2、20至30體積%之CO、20至30體積%之CO2及2至15體積%之H2。在生產生鐵時產生之該鼓風爐頂氣的大約30至40%通常被用來在空氣加熱器中加熱用於鼓風爐製程之熱空氣;在該用以加熱或用以產生電力之機構的其他區域中亦可外部地使用頂氣之剩餘量。
在配置於該鼓風爐製程之下游的鋼轉化機構中,生鐵被轉化成粗鋼。藉由將氧吹在液態生鐵上,移除例如碳、矽、硫及磷等令人討厭之雜質。由於氧化製程造成大量熱產生,經常相對於該生鐵添加至25%之量的廢料作為一冷媒。此外,添加石灰以形成熔渣及一合金用劑。由該鋼轉化器抽出具有一高CO含量且亦含有氮、氫及CO2之一轉化氣體。一典型轉化氣體組成物具有50至70體積%之CO、10至20體積%之N2、大約15體積%之CO2及大約2體積%之H2。該轉化氣體被燒掉或,在現代鋼廠中,被收集且通過而被用於提供能量。
該複合設備可選擇地與一煉焦設備一起操作。在這情形下,在開始時所述之複合設備另外包含一煉焦爐設備,其中煤藉由一煉焦製程轉化成煤焦。在將煤煉焦成煤焦時,產生包含一高氫含量及相當大量CH4之一煉焦爐氣。通常煉焦爐氣包含55至70體積%之H2、20至30體積%之CH4、大約10體積%之N2及5至10體積%之CO。此外,該煉焦爐氣具有某些百分比之CO2、NH3及H2S。實際上,該煉焦爐氣係使用在用以加熱之機構的各種區域中及在用以產生電力之發電製程中。此外,與鼓風爐頂氣或與轉化
氣體一起使用煉焦爐氣以產生合成氣是已知的。依據由WO 2010/136313 A1揭露之一方法,煉焦爐氣被分成一富含氫氣體流及含CH4與CO之一剩餘氣體流,該剩餘氣體流係被供給至該鼓風爐製程且該富含氫氣體流係與該鼓風爐頂氣混合且進一步處理成一合成氣。由EP 0 200 880 A2已知的是混合轉化氣體及煉焦爐氣且使用它們作為用於甲醇合成之一合成氣。
在與一煉焦設備一起操作之一整合式冶金設備中,產生成為鼓風爐頂氣、轉化氣體及煉焦爐氣之原料氣體的大約40至50%被用於化學工程製程。所產生之氣體之大約50至60%被供給至一發電設備且被用來產生電力。在該發電設備中產生之電力滿足生產生鐵及粗鋼之電力需求。理想地,能量平衡關閉,使得,除了鐵礦及以煤與煤焦之形式之碳作為能源以外,不需要進一步輸入能量且,除了粗鋼及熔渣以外,沒有產物離開該複合設備。
相對於這背景,本發明之目的在於進一步改善全部製程之經濟效益及提供可減少用於鋼生產之成本之一複合設備。此外亦努力減少在生產粗鋼時之CO2排放。
由用以生產鋼之一複合設備開始,且該複合設備包含用以生產生鐵之一鼓風爐,用以生產粗鋼之一鋼轉化機構,用於在生產生鐵時及/或在生產粗鋼時產生之氣體的一氣體傳送系統,及用以產生電力之一發電設備,依據本發明該複合設備另外具有與該氣體傳送系統連接之一化
學或生技設備,及用以滿足該複合設備之電力需求之至少一部份的一能量儲存裝置。依據本發明之複合設備之有利改良係在專利請求項2至4中說明。
又,本發明之標的物係操作用以生產鋼之一複合設備之依據請求項5之一方法,且該複合設備具有用以生產生鐵之至少一鼓風爐,一鋼轉化機構及一化學設備或生技設備。依據本發明之方法,在一氣體調整操作後,開始使用在該鼓風爐中生產生鐵時產生之一鼓風爐頂氣的一部份量及/或在生產粗鋼時產生之一轉化氣體的一部份量作為用以產生化學產物有用氣體或在一氣體調整操作後供給至該生技設備且用於生化製程。為了滿足該複合設備之電力需求之至少一部份,設置一能量儲存裝置。已至少部份地由再生能源產生之電力供給該能量儲存裝置且該儲存能量稍後再釋出給該複合設備之電負載。
由再生能源,例如由太陽能設備或風力渦輪發電機設備提供電力會隨著時間變動。在來自再生能源之電力可以一足夠量且以有利之價格獲得時,將該能量儲存裝置充電,使得當電力供應不足時及在高電價時,可由該能量儲存裝置取得足夠電力以操作該複合設備。在該複合設備中加入該能量儲存裝置可一致地生產生鐵及粗鋼及連續地操作該化學設備或該生技設備,而該化學設備或該生技設備係與用以生產生鐵及生產粗鋼之設備一起操作。依據本發明之複合設備可確保該化學設備或生技設備可取得在生產生鐵及/或生產粗鋼時產生的一實質均勻氣流作
為一進料。與在開始時說明之習知技術,即,在一用以產生電力之一發電設備中使用以鼓風爐頂氣、轉化氣體及可能之煉焦爐氣之形式出現的原料氣體之50至60%比較,如果該等氣體沒有燒完而是藉由化學反應或生化製程轉化成更高價值之產物,則可藉由依據本發明之方法減少CO2排放。使用越多來自再生能源之電力來供給該能量儲存裝置及供應該等電負載,生態之好處就越大。因此本發明亦利用在生產生鐵及/或生產粗鋼時產生之氣體轉化成化掣產物之一化學設備的效率比使用該等原料氣體來產生電力之一發電設備的效率大很多之事實。
用以供給電力至該複合設備之一發電設備可作為一備用發電設備使用,以便當該化學設備或生技設備未操作或該能量儲存裝置不足夠以所欲輸出操作用以生產生鐵及生產粗鋼之生產設備時,確保對該複合設備之一電力供給。
在該化學設備中,化學產物可由合成氣產生,且該等合成氣分別包含該最後產物之組分。化學產物可為例如氨或甲醇或其他碳氫化合物。
為產生氨,必須提供以正確比率包含氮及氫之一合成氣。該氮可由鼓風爐頂氣獲得。鼓風爐頂氣或轉化氣體可作為該氫源使用,且氫係藉由依據一水煤氣轉化反應(CO+H2OCO2+H2)轉化該CO部份產生。為產生碳氫化合物,必須提供大致由CO及/或二氧化碳及H2構成且以正確比率包含該等組分一氧化碳及/或二氧化碳及氫的
一合成氣。該比率通常係藉由該模數(H2-CO2)/(CO+CO2)來說明。該氫可藉由依據一水煤氣轉化反應轉化在該鼓風爐頂氣中之CO部份來產生。轉化氣體可用來提供CO。鼓風爐頂氣及/或轉化氣體可作為CO2之來源。
但是,在上述觀念之情形下,因為氫不足,所以無法完全地使用該混合氣體之C含量或N含量。為了可完全地使用在生產生鐵及/或生產粗鋼時產生之氣體之C含量或N含量來產生化學產物,依據本發明之方法之另一改良,計量加入在一用以產生氫之設備中形成之氫。該氫宜藉由電解水產生,且水之電解可利用來再生能源之電力操作。較佳地,該電解設備係與該能量儲存裝置電氣地連接且電解水所需之電能之至少一部份係由該能量儲存裝置取得。電解水時亦產生氧,且該氧可被使用在用以生產生鐵之鼓風爐及/或用以生產粗鋼之鋼轉化機構中。
在本發明之範圍內,亦可使用一生技設備而非一化學設備以由合成氣產生產物。相關之設備係用於合成氣之醱酵的一設備。該合成氣係藉由一醱酵製程生化地使用,可產生例如醇(乙醇、丁醇)、丙酮或有機酸之產物。藉由合成氣之醱酵產生之這些產物只在此情形下透過舉例提出。
該複合設備可另外包含一煉焦爐設備。如果生產生鐵及生產粗鋼係與一煉焦設備一起操作,在生產生鐵時產生之該鼓風爐頂氣的一部份量及/或在該鋼轉化機構中產生之該轉化氣體的一部份量可與在該煉焦爐設備中
產生之該煉焦爐氣的一部份量混合且該混合氣體可作為一有用氣體使用。煉焦爐氣與鼓風爐頂氣之一混合物或包含煉焦爐氣、轉化氣體及鼓風爐頂氣之一混合氣體可作為用以產生,例如用於氨合成之一合成氣使用。包含煉焦爐氣及轉化氣體之一混合氣體或包含煉焦爐氣、轉化氣體及鼓風爐頂氣之一混合氣體適合用以產生碳氫化合物。可在一化學設備中由鼓風爐頂氣、轉化氣體及煉焦爐氣產生之所述化學產物只是用以說明在專利請求項中所述之方法之變化的應用例。
該等原料氣體-煉焦爐氣、轉化氣體及/或鼓風爐頂氣-可單獨地或組合地調整成為一混合氣體且接著供給至該化學設備作為合成氣。煉焦爐氣之調整特別地包含該氣體之一清潔以分離出令人討厭之內容物,特別是焦油、硫及硫化合物、芳香烴(BTX)及高沸點碳氫化合物。在氣體調整之過程中,該等組分CO、CO2及H2在該原料氣體內之百分比改變。該氣體調整包含例如用以分離出及加H2之變壓式吸附及/或用以將CO轉化成氫之一水煤氣轉化反應及/或用以在該煉焦爐氣中將該CH4部份轉化成CO及氫之一蒸汽重組器。
該能量儲存裝置可在一電網路中與一發電設備一起操作,該發電設備係設計為一燃氣渦輪機發電設備或燃氣渦輪機與蒸氣渦輪機發電設備且為產生電力而與鼓風爐頂氣、轉化氣體或煉焦爐氣或由這些氣體組分之至少兩組分形成之一混合氣體一起操作。該發電設備及該化學
或生技設備係相對於該氣體之進給並聯地配置。一方面可控制供給至該發電設備之氣體流,且另一方面可控制供給至該化學或生技設備之氣體流。
本發明亦包含依據請求項12之將一電化學或化學能量儲存裝置整合在一用於鋼生產之複合設備中之用途。
1‧‧‧鼓風爐
2‧‧‧鋼轉化機構
3‧‧‧發電設備
4‧‧‧鐵礦
5‧‧‧還原劑
6‧‧‧生鐵
7‧‧‧鼓風爐頂氣;原料氣體
8‧‧‧粗鋼
9‧‧‧轉化氣體;原料氣體
11‧‧‧混合氣體
12‧‧‧化學設備
13‧‧‧氣體分流器
14‧‧‧混合裝置
15‧‧‧外部獲得電力
16‧‧‧發電設備電力
17‧‧‧煉焦爐設備
18‧‧‧煤
19‧‧‧煤焦
20‧‧‧煉焦爐氣
21‧‧‧用以產生氫之設備
22‧‧‧氫運送線
25‧‧‧能量儲存裝置
26‧‧‧電力
以下依據只顯示一示範實施例之一圖式說明本發明。示意地,圖1顯示用以生產鋼之一複合設備之大幅簡化方塊圖,該複合設備包含用以生產生鐵之一鼓風爐,用以生產粗鋼之一鋼轉化機構,用以產生煤焦之一煉焦爐設備、一能量儲存裝置、一發電設備及一化學設備;圖2顯示一複合設備之大幅簡化方塊圖,除了在圖1中所示之設備組件以外,該複合設備亦具有一用以產生氫之設備。
圖1所示之用於鋼生產之複合設備包含用以生產生鐵之一鼓風爐1,用以生產粗鋼之一鋼轉化機構2及任選之用以產生煤焦19之一煉焦爐設備17,而該煤焦19係用以生產生鐵所需。亦可提供一發電設備3,該發電設備3係設計為一燃氣渦輪機發電設備或燃氣渦輪機與蒸氣渦輪機發電設備且與一氣體一起操作,該氣體係在生產生鐵、生產粗鋼時及/或在該煉焦爐設備中產生。提供一氣體傳送系
統以運送該等氣體。
在該鼓風爐1中,生鐵6係實質由鐵礦4及還原劑5,特別是煤焦及煤獲得。還原反應產生一鼓風爐頂氣7,且該鼓風爐頂氣7含有氮、CO、CO2及H2作為主要組分。在配置於該鼓風爐製程下游之鋼轉化機構2中,生鐵6被轉成粗鋼8。藉由將氧吹在液態生鐵上,移除特別是碳、矽及磷等令人討厭之雜質。為冷卻,可相對於該生鐵量添加至25%之量的廢料。此外,添加石灰以形成熔渣及一合金用劑。在該轉化器之頂部,抽出具有一非常高CO百分比之一轉化氣體9。如果該複合設備另外包含一煉焦爐設備17,由於將煤18煉焦成煤焦19,所以亦產生包含一高百分比之氫及CH4之一煉焦爐氣20。該煉焦爐氣20之某些部份可被用來加熱在該鼓風爐1中之空氣加熱器。
依據圖1所示之整體平衡,以煤與煤焦之形式將碳供給至該複合設備作為還原劑5且亦供給鐵礦4。作為產物存在的是量、組成、熱值及純度不同且在該複合設備中各種不同點再使用之粗鋼8及原料氣體7、9。在一整體考量中,該等原料氣體7、9之40至50%,經常大約45%再返回該冶金製程中以生產生鐵或生產粗鋼。該等原料氣體7、9之50與60%之間,經常大約55%被供給至該化學設備12且可被用來操作該發電設備3。亦可設置一生技設備來取代該化學設備12。
該化學設備12與該氣體傳送系統連接且相對於該氣源配置成與該發電設備3並聯。該氣體傳送系統具有
用以分開供給至該發電設備3及該化學設備12或生技設備之氣體流的一可操作控制之氣體分流器13。在流動方向上設置在該氣體分流器13之上游的是用以產生由鼓風爐頂氣7、轉化氣體9及/或煉焦爐氣20構成之混合氣體11的一混合裝置14。
在圖1所示之複合設備的情形中,在一氣體調整操作後,使用在該複合設備中產生作為鼓風爐頂氣、轉化氣體及可能之煉焦爐氣之原料氣體的至少一部份量作為用於產生化學產物之有用氣體。使用外部取得電力15來滿足該複合設備之電力需求,且該外部獲得電力15係至少部份地由再生能源獲得且來自例如風力渦輪機發電設備、太陽能設備、水力發電設備等。此外,發電設備之電力16可被使用。
該複合設備包含一能量儲存裝置25。已至少部份地由再生能源產生之電力26供給該能量儲存裝置且該儲存能量稍後再釋出給該複合設備之電負載。該能量儲存裝置25亦在一電網路中與該發電設備3一起操作。為達成用以生產生鐵及生產粗鋼之設備及該化學設備12的連續操作,必須可連續地取得混合氣體作為該化學設備12之一進料。又,為了使該複合設備一直具有生產生鐵及生產粗鋼所需之電力量,在低電價及可充分取得再生能源時,在該能量儲存裝置25中儲存電能。如果無法以一充足量且以一可接受價格由外部取得該再生能源,則由該能量儲存裝置25取得所需電力。包括該發電設備3之該複合設備係設
計成使得該發電設備3可以準備模式使用且至少某些時候可關閉。該發電設備3係在該化學設備12停止操作或該儲存能量不足以確保該複合設備之操作時使用。在這情形下,該複合設備係至少部份地以發電設備電力16操作。這防止該化學設備12必須以部份負載模式操作或立即降低其輸出。該能量儲存裝置25係形成為一化學或電化學儲存裝置。如果使用一生技設備而不是該化學設備12,相同之情形可對應地應用。
在圖2之示範實施例中,該複合設備另外包含一用以產生氫之設備21,該用以產生氫之設備21藉由一氫運送線22與該氣體傳送系統連接。該用以產生氫之設備21可特別是一用以電解水之電解設備。水之電解需要大量能量來操作。電解水所需之電能之至少一部份係由該能量儲存裝置25取得。此外,可使用宜來自再生能源之外部電力26。由電解水產生之氫與該有用氣體一起供給至該化學設備12作為合成氣。這使該化學設備12之容量可顯著地增加。如果設置的是一生技設備而非該化學設備12,相同之情形可對應地應用。
該鼓風爐頂氣7、該轉化氣體9及該煉焦爐氣20可以任何所欲方式互相組合。原料氣體7、9、20之組合取決於該所欲合成氣或欲在該化學設備12或該生技設備中由該合成氣產生之產物。
Claims (10)
- 一種用於鋼生產之複合設備,包含:一鼓風爐,用以生產生鐵;一鋼轉化機構,用以生產粗鋼;及一氣體傳送系統,用於在生產生鐵及/或生產粗鋼時產生之氣體;其特徵在於該複合設備另外包含一化學設備或生技設備,該化學或生技設備與該氣體傳送系統及一用以滿足該複合設備之電力需求之至少一部份的一能量儲存裝置連接,其中該複合設備另外具有一電解設備,該電解設備係藉由一氫線與該化學設備連接且係藉由一返氧裝置與該鼓風爐及/或一用以生產粗鋼或處理粗鋼之設備連接,且其中,為將電力供給至該電解設備,該能量儲存裝置與其電氣地連接。
- 如請求項1之複合設備,其中該能量儲存裝置係形成為一化學或電化學儲存裝置。
- 如請求項1或2之複合設備,其中該複合設備另外包含一發電設備,且該發電設備係設計為一燃氣渦輪機發電設備或燃氣渦輪機與蒸氣渦輪機發電設備且與一氣體一起操作,而該氣體包含在該鼓風爐中生產生鐵時產生之鼓風爐頂氣的至少一部份量及/或在該鋼轉化機構中產生之轉化氣體的一部份量,且其中該氣體傳送系 統具有用以分開供給至該發電設備及該化學設備之氣體流的一可切換氣體分流器。
- 一種操作用於鋼生產之複合設備之方法,該複合設備具有用以生產生鐵之至少一鼓風爐,一鋼轉化機構,一化學設備或生技設備及一用以滿足該複合設備之電力需求之至少一部份的一能量儲存裝置,該方法包含:a)在一氣體調整操作後,使用在該鼓風爐中生產生鐵時產生之一鼓風爐頂氣的至少一部份量及/或在生產粗鋼時產生之一轉化氣體的一部份量,作為用以產生化學產物之有用氣體或在一氣體調整操作後供給至該生技設備且用於生化製程;b)將已至少部份地由再生能源產生之電力供給該能量儲存裝置且將該儲存能量稍後再釋出給該複合設備之電負載,其中該有用氣體係被富含有氫,該氫係藉由水電解在一電解設備中產生,且其中水電解所需之電能之至少一部份係由該能量儲存裝置取得。
- 如請求項4之方法,其中在用以生產生鐵之該鼓風爐中使用及/或在用以生產粗鋼或處理粗鋼之該鋼轉化機構中使用在水電解時產生之氧。
- 如請求項4或5之方法,其中在生產生鐵時產生作為鼓風爐頂氣及/或在該鋼轉化機構中產生作為轉化氣體之氣體量的5%至60%被供給至該化學設備且用以產生有價值之化學物質。
- 如請求項4或5之方法,其中煉焦爐氣係與該有用氣體混合。
- 如請求項4或5之方法,其中該能量儲存裝置在一電網路中與一發電設備一起操作,且該發電設備係設計為一燃氣渦輪機發電設備或燃氣渦輪機與蒸氣渦輪機發電設備且為產生電力而與鼓風爐頂氣、轉化氣體或煉焦爐氣或由這些氣體組分之至少兩組分形成之一混合氣體一起操作,其中該發電設備及該化學設備或生技設備係相對於該氣體之進給並聯地配置且其中供給至該發電設備及該化學設備之氣體流被控制。
- 如請求項8之方法,其中該發電設備係以一備用模式使用且在某些時候被關閉。
- 一種用途,係將一電化學或化學能量儲存裝置整合在如請求項1至3中任一項之用於鋼生產之複合設備中,且該複合設備包含用以生產生鐵之至少一鼓風爐,用於生產粗鋼之一鋼轉化機構及被供給有該鼓風爐頂氣及/或轉化氣體之一化學或生技設備。
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