A CONCEPT OF THE GASIFICATION PLANT FOR SELECTED ORGANIC WASTE

Figure 1.

Figure 2.

Figure 3.

Figure 4.

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