| FGD (Fume Gas Desulfuration) is only cosmically commercial desulfuration type in the world. It is dominating technology measure to control acid rain and sulfur dioxide pollution. There are many methods to process FGD. Wet method, half-desiccated method and desiccated method desulfuration technics are developing synchronously now. At home, these three technics have had projects in fact and good environmental benefits have been gained. FGD equipment cost huge fund. Most equipment of FGD project in fire power plants in our nation are imported. We only take charge installation. Overseas technology and equipment are too costly. If it is made in our country, FGD project's cost will be decreased consumedly, accordingly it will become possible to apply FGD equipment cosmically in our nation.This article has analyzed and evaluated existing FGD equipment in our nation, aiming actuality of development of domestic and overseas FGD and the situation of our country. FGD equipment sound technically and economically and adapt to our nation are searched out. Expense-benefit principle is used to analyze and evaluate FGD equipment. Dynamic analytical method is used to analyze economy effect of FGD equipment so as to change it's technical and economical analysis from qualitative analysis to quantitative analysis. Direction of research institution in our nation are directed by this article researchfuJ conclusion.This article's main work are:Technical essential of FGD equipment are analyzed, technical parameter are researched and appraised, and economical index are also researched. Main factors are discovered. A suit of index synthetical of appraising technical and economical capability of FGD are made certain.Expense-benefit theory is thoroughly analyzed and it is used to analyze and appraise FGD equipment. At the same time, expense source and benefit source of FGD equipment are found out seriously by expense-benefit principle and economical viewpoint.Expense of FGD equipment is calculated. Economical effect is analyzed by analytical dynamically method. Time value of investment and expense is taken into account and equivalence calculation is used in dynamic analysis.
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