发明名称 |
A PROCESS FOR THE TREATMENT OF GAS PHASE ALKALINE CHLORIDES IN A COMBUSTION PLANT, COMBUSTION PLANT FOR CARRYING OUT THE PROCESS, AND THE USE OF A PHOSPHOROUS SUBSTANCE FOR THE TREATMENT OF GAS PHASE ALKALINE CHLORIDES IN A COMBUSTION PLANT |
摘要 |
The invention refers to a process for the treatment of gas phase alkaline chlorides in a combustion plant that is arranged for combustion of solid fuel and which comprises a combustion chamber from which a flue-gas flow is directed to pass a heat transfer device. According to the process a phosphorous substance is added to the flue-gas flow, separate from the fuel, the substance chosen from a group of substances that form phosphorous oxide at combustion temperatures of approx. 500 °C or above, wherein the phosphorous substance is distributed in the flue-gas at a location upstream of the heat transfer device as viewed in the flow direction of the flue-gas, and wherein the phosphorous substance is added to an amount which results in phosphatising of gas phase alkaline chlorides included in the flue- gas flow before the chlorides reach the heat transfer device. Analogously herewith a combustion plant is disclosed and arranged for carrying out the process, as well as the use of a phosphorous substance for phosphatising alkaline chloride in gaseous phase in a flue-gas flow. |
申请公布号 |
CA2662027(C) |
申请公布日期 |
2016.08.02 |
申请号 |
CA20092662027 |
申请日期 |
2009.04.08 |
申请人 |
VATTENFALL AB |
发明人 |
AHLMARK, MATTS;BERG, MAGNUS |
分类号 |
B01D53/68 |
主分类号 |
B01D53/68 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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