In this study, the capital cost of equipment is estimated using the methods published by Woods . The equipment cost database by Woods is perhaps the most comprehensive collection available in the public domain . Other comparable database is Peters 1 accompany-1 ing Peters . The advantage of the Woods database is that specific formulaes and scaling relations are provided for each piece of equipment, whereas Peters database is more like a black-box not exposing the underlying cost relations. Alternatively, commercial databases such as Aspen Icarus / Aspen Capital Cost Estimator can be used. Based on internal benchmarks against purchased and installed equipment, the Woods database provides satisfying results.