Synthesis gas (syngas) is a gaseous mixture of predominantly CO and H2 commonly generated via a coal gasification proces

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Synthesis Gas Syngas Is A Gaseous Mixture Of Predominantly Co And H2 Commonly Generated Via A Coal Gasification Proces 1 (59.27 KiB) Viewed 79 times

Synthesis gas (syngas) is a gaseous mixture of predominantly CO and H2 commonly generated via a coal gasification process. Syngas can be used either as fuel gas or as a feedstock to synthesise organic compounds. Question 1. Gasification process [8.0 marks) In a gasification process, coal containing 22.6 wt.% noncombustible ash was charged to a gasifier at high temperature and pressure with a stream of air. A synthesis gas consisting of the following molar composition was generated from the process: 0.4% CH4, 52.8% H2, 38.3% CO, 5.5% CO2, 0.1% O2, and 2.9% N2. Hint: the gasifier has an output stream for ash. a. Sketch the gasification process. (1.5 marks; ULO 1) b. Perform a degree-of-freedom analysis of the gasification process. (1.5 marks; ULO 1) C. Determine the coal composition on an ash-free basis (i.e. in terms of C, H, and O) in mol%. Components с H Composition (mol%) (3.0 marks; ULO 2) d. Determine the coal composition in terms of C, H, O and ash in wt.%. Components с H 0 Composition (wt.%) (2.0 marks; ULO 2) 0 ash