Syngas density in Shell gasification
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I would be grateful if an expert could provide some guidance. I would like to know what the density of the syngas is as it reaches the fly ash filter unit in Shell’s gasification process. At present, I only have the mass flow rate; I need to convert this into a volume flow rate, and that’s why I need to know the density of the syngas.
This post was last edited by pyp222 on 2017-5-31 at 12:50. If you have software, it’s best to get the results directly; otherwise, calculate them manually. Manual calculation can only yield approximate results. First, the average molecular weight M is calculated based on the components of the gas (wet gas, including water vapor); the average molecular weight of dry coal dust gas is approximately 20–21. The density under standard conditions is obtained by dividing M by 22.4. Once this standard density is known, the density under the actual operating conditions can be calculated using the ideal gas law. This manual calculation method can roughly determine the density, but it is not accurate and has errors. If the pressure is set at 4.0 MPa and the temperature at 250°C, the calculated density is approximately 19.1 kg/m3
For the syngas density of the DF ash filter unit, there is a large amount of fly ash present; shouldn’t the density take this fly ash into account?
In the design parameters, the density values for gas refer to pure gases; the fly ash present in the gas is expressed in terms of its solid content concentration. The fly ash content in this area can exceed 1000 mg/Nm3, and in some cases even reach several thousand or tens of thousands of mg
I currently have a syngas mass flow rate of 10 kg/s, and I want to convert this to a volume flow rate; therefore, I need to know the density under these conditions.
I currently have a syngas mass flow rate of 10 kg/s, and I want to convert this to a volume flow rate; therefore, I need to know the density under these conditions.
I currently have a synthesis gas mass flow rate of 10 kg/s, and the pressure difference of the gas is also known; I would like to find out the volumetric flow rate, and therefore I need to know the density under these conditions.
The mass flow meter has density parameter settings; check the meter’s parameter table.
Thank you, but what I have here are just the operational data provided to the factory by others; it only records the mass flow rate, with no other parameters available. So it’s really troublesome.
If it is 10 kg/s, and the density calculated earlier is 19.1 kg/s, then the volumetric flow rate under those operating conditions is 0.524 m3/s, which is equivalent to 1886.4 m3/h. Under the same operating conditions, the flow rate at standard conditions is approximately 40,000 Nm3/h