Abstract:

For industry of substitute natural gas (SNG) from underground coal gasification, the main requirement is to get a good economic and environmental benefit, and its goal type of location problem belongs to the profit-type. An improved two-stage method is proposed in this paper to promote this industry to get good economic and environmental benefits. First, it uses the center of gravity method to determine the approximate location of the project site, and then on the basis of the main factors detailed analysis of the project site, it uses fuzzy analytic hierarchy process (FAHP) and creates a model to solve the location problem. In the process of using FAHP method to calculate, it gets curve distance to calculate shipping costs by using GIS method. Finally, we analyze the location selection problem of underground coal gasification gas project in Shandong province by the model we have made, and get the optimized location of project.

Key words: The improved two-stage method, SNG from underground coal gasification, Fuzzy analytic hierarchy process, Project site selection