Abstract
The syngas purification is a basic problem in the gas production process through the biomass gasification. This issue is important due to the use of the Venturi scrubbers in the syngas cleaning process. As it is commonly known, syngas is an alternative for the coal and using syngas instead of the coal leads to ‘clean energy’ generation. The paper concerns the analytical research studies on two-phase fluid flow pattern in Venturi’s throat. The uniform coverage of Venturi’s cross-section with small droplets plays a significant role in the dust particles collection and chemicals removal as Venturi’s cleaning efficiency mostly depends on this operation parameter. Therefore, the analysis of the two-phase fluid flow with respect to a droplet deposition and entrainment was carried out. Based on these research studies, it is possible to determine the variation of the liquid superficial velocity in the core of the flow and within the liquid wall film, the length at which the droplet entrainment starts to occur, the liquid fraction variation with Venturi’s throat length and diameter. The obtained analytical model, which is introduced in the paper, was validated with the use of the experimental data available in the literature.
Highlights
Bearing in mind the concern for dust and chemical pollutions removal from the atmosphere, searching of a so-called clean energy sources is obligatory
In the light of this fact, the alternative heat carriers ought to be searched by researchers
The greenhouse gases emission reduction is a critical problem of the world which scientists should work on
Summary
Bearing in mind the concern for dust and chemical pollutions removal from the atmosphere, searching of a so-called clean energy sources is obligatory. The Polish power system mostly relies on the carbon power plants Poland is struggling with the greenhouse gases (GHG) and dust particles high emission problem. The greenhouse gases emission reduction is a critical problem of the world which scientists should work on. The synthesis gas (syngas), which can be produced through the biomass gasification process, seems to be a very attractive alternative to coal. Syngas needs to be purified from different chemicals and dust particles so it could cope the. The two-phase flow pattern plays a significant role in the studied problem of a syngas cleaning process, the regimes of this flow cannot be neglected nor disregarded
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