@phdthesis{Suhendra2007, author = {Suhendra,}, title = {Integrated improvement of distillation unit using multicriteria decision making analysis}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:co1-opus-1701}, school = {BTU Cottbus - Senftenberg}, year = {2007}, abstract = {Stringent safety and environmental regulations, and competitions have challenged the chemical process industries to bring products to market at low lifecycle costs without compromising on safety and environmental standards. Frequently, a large number of alternatives with different structure design and process alternatives of distillation unit can be found to satisfy the demanded criteria of improvement target. Therefore, a systematic method for the improvement of distillation unit is of the considerable interest in order to evaluate the improvement objectives of design alternatives that include economic, environmental and safety criteria. Accordingly, this thesis presents integrated improvement of distillation unit based on careful and simultaneous evaluation of economic, environmental and safety criteria of the design alternatives. The approach for integrated plant improvement in this paper bears the consequence that economically attractive plant might not be the ultimate criteria as the decision tools to choose the best design, but put this economic criteria in a degree of preference in comparison to other criteria. Then, the evaluation of safety and environmental objectives in one side and total cost objectives in other side should be taken into account as a critical step in the plant improvement scenario. This research proposes a fundamental work on evaluation of economic, safety and economic criteria in distillation technology in an integrated manner. Economic evaluation will be calculated based on total annualized cost calculation. Environmental evaluation relies on the calculation of potential environmental impact associated with generated heat and mass balances generated by process simulation. Safety evaluation will be based on dynamic simulation of the investigated distillation unit during disturbance or non-standard operation as well as inherent safety index calculation. At the end, this thesis proposed a methodology for the improvement of distillation unit based on a framework of multi criteria decision making analysis. An analytic hierarchy process methodology is used to support decision upon the criteria for selection, rate the relative importance of the criteria and its advantages/ disadvantages as well as to combine the ratings to obtain an overall rating for each choice of design improvement. The concept will be applied in an existing plant as case study. It is supposed that the proposed integrated-scenario is applicable to support a decision making in chemical industries that always deal all the time with improvement tasks.}, subject = {Destillation; Multikriteria-Entscheidung; Destillationsanlage; Mehrkriterielle Optimierung; Umweltbewertung; Sicherheitsbewertung; Distillation unit; Multicriteria decision making analysis; Environmental evaluation; Safety evaluation}, language = {en} }