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The aim of this feasibility study was to examine the technical viability and economic feasibility of a lignite to ammonia/urea gasification complex with and without SNG production utilizing Greek lignites. The project was evaluated on a technical and economic basis and several alternatives were examined. The final proposed project configuration is as follows: item"1." Lignite gasification plant for the production of gas (LHV = 3500 kcal/NCM) with a capacity of 83,000 NCM/h. item"2." Hydrogen separation unit (PSA) to separate hydrogen in the gas for use in ammonia production and enrich the off-gas stream in methane. item"3." Ammonia production plant with a capacity of 382,000 MT/y. item"4." Urea production plant with a capacity of 328,500 MT/y. item"5." Steam and power plant.par The lignite feedstock is of low grade (high ash and moisture content). Nitrogenous Fertilizers Industry SA has decided to proceed with the realization of the project provided a grant is obtained under Greece's investment incentive laws. The total invested capital for the overall complex is USD 468 million with an ammonia production cost of USD 165/MT.

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Bibliographic Reference: EUR 11401 EN (1988) FS, 17 PP., ECU 5, AVAILABILITY: EUROFFICE, LUXEMBOURG, POB 1003
Availability: Can be ordered online
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