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A CONCEPT OF THE GASIFICATION PLANT FOR SELECTED ORGANIC WASTE

Monika CZOP
Monika CZOP
   | 18. Okt. 2019
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Article Category: research-article
Online veröffentlicht: 18. Okt. 2019
Seitenbereich: 123 - 129
Eingereicht: 18. Juni 2019
Akzeptiert: 24. Juni 2019
DOI: https://doi.org/10.21307/acee-2019-042
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© 2019 Monika CZOP et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Figure 1.

Directions of municipal waste management in Poland [4–6]
Directions of municipal waste management in Poland [4–6]

Figure 2.

Directions of thermal transformation of waste (owe work)
Directions of thermal transformation of waste (owe work)

Figure 3.

Flowchart of the plant for gasification of waste [22]
Flowchart of the plant for gasification of waste [22]

Figure 4.

Tested waste: (a) waste plastic (WP); (b) initially prepared municipal waste (MW) (performed by M. Czop)
Tested waste: (a) waste plastic (WP); (b) initially prepared municipal waste (MW) (performed by M. Czop)

Technical parameters of the plant for gasification of waste [22]

The type of deposit Circulating fluidized bed
Process temperature, °C 1200
Working pressure, MPa 1.0–1.5
Reactor operating pressure, MPa 2.0
Gasification agent steam/ O2/ CO2

Standards for the physicochemical analysis

Title Unit Symbol Standard
Determination of moisture content % MT PN-Z-15008-02:1993
Determining combustion heat and calculating the calorific value MJ/kg GCV, NCV PN-Z-15008-04:1993
Determination of ash content % A PN-EN 15403:2011
Determination of fly ash by weighting % V PN-EN 15402:2011
Determination of carbon and hydrogen % C, H PN-Z-15008-05:1993
Determination of nitrogen with the Kjeldahl method % N PN-G-04523:1992
Determination of sulfur with the Eschka method % S PN-ISO 334:1997
Determination of chloride using the Eschka mixture % Cl PN-ISO 587:2000

The composition of synthesis gas from the process for WP

Components Symbol Unit The composition of synthesis gas for WP
Hydrogen H2 vol % 51.64
Carbon monoxide CO 46.10
Nitrogen N2 0.44
Steam H2O 0.78
Carbon dioxide CO2 0.27
Argon Ar 0.67
Sulfur dioxide SO2 0.00
Hydrogen sulfide H2S ppm 429
Ammonia NH3 ppm 20
Hydrogen chloride HCl ppm 349
Gross calorific value GCV MJ/kg 19.03
Net calorific value NCV MJ/kg 17.44

The composition of synthesis gas from the process for MW

Components Symbol Unit The composition of synthesis gas for WP
Hydrogen H2 vol % 43.98
Carbon monoxide CO 46.74
Nitrogen N2 0.59
Steam H2O 5.81
Carbon dioxide CO2 2.43
Sulfur dioxide SO2 0.00
Hydrogen sulfide H2S ppm 2500
Ammonia NH3 ppm 23
Hydrogen chloride HCl ppm 988
Gross calorific value GCV MJ/kg 15.85
Net calorific value NCV MJ/kg 14.49

Technical analysis of tested raw materials for the gasification process

Parameter Symbol Unit WP MW
Total moisture content MT % 0.03 22.47
Combustible substances, Air Dried Xd % 99.10 92.44
Combustible substances, As Received Xar % 99.07 71.67
Ash, Air Dried Ad % 0.86 7.56
Ash, As Received Aar % 0.86 5.86
Volatile matter, Air Dried Vd % 99.13 79.06
Gross calorific value, Air Dried GCVd MJ/kg 47.52 23.66
Gross calorific value, As Received GCVar 47.50 18.29
Net calorific value, Air Dried NCVd MJ/kg 44.38 22.62
Net calorific value, As Received NCVar 44.36 16.97

Elemental composition of selected waste

Parameter Symbol Unit WP MW
AsReceived AirDried AsReceived AirDried
Carbon C % 85.28 85.31 34.63 43.29
Hydrogen H % 13.95 13.96 3.42 4.27
Sulphur S % 0.22 0.22 0.47 0.59
Nitrogen N % 0.29 0.29 0.88 1.10
Chlorine Cl % 0.19 0.19 0.41 0.51
Oxygen O % 0.00 0.00 31.86 39.64
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