Experimental dataset of microwave-assisted pyrolysis of low-rank coal

Description

The process of converting low rank coal (LRC) into liquid is very important in order to increase the added value of low rank coal and obtain liquid fuel that can substitute petroleum fuel. Therefore, this dataset presents experimental data on microwave-assisted pyrolysis from low rank coal using activated carbon and HZSM-5 catalysts and Fe2(SO4)3 receptors, along with characterization data. The operating variable used is the reaction temperature is 843 - 923 K; the microwave input power is in 0 - 800 W; reaction time is 900 - 8,100 s; the particle size is 4.76 -0.07 mm. The amount of pyrolysis product is expressed in product yield. The liquid product yield is the total mass of the liquid divided by the mass of the feedstock. Apart from the liquid product, there is tar as a waste and vaporized gas which we did not measure. Some of the raw material and product analyze we carry out are proximate analysis (content of the ash, moisture, fixed carbon, and volatile substances) by ASTM D3172-D3175 methods. Micromorphology of low rank coal and char using Scanning Electron Microscope (SEM). X-ray diffraction (XRD) analysis on the crystal structure of low rank coal raw materials and char products. The Fourier Transports Infrared (FTIR) spectrometer was used to analyze the organic functional groups of liquid fuel. Gas chromatography-mass spectrometry (GC-MS) was used to analyze the components of liquid fuel and gas products. These data have the potential to be used as comparative research to convert low rank coal into liquid fuel.

Steps to reproduce

- The yield of liquid product is determined from the total mass of the liquid obtained divided by the mass of the feed multiplied by 100%. - Meanwhile, the char yield is the mass of char divided by the mass of the feed multiplied by 100%. - Proximate analysis performed using the ASTM D3172-D3175 method. - SEM is used to obtain the micromorphology of raw coal and char. - XRD analysis (PANanalytical’s MiniPal 4) on the crystal structure of coal and char. - FTIR spectrometer (Shimadzu, IRPrestige-21) was used to analyze the organic functional groups of liquid fuel. - GC-MS was used to analyze the components of liquid fuel and gas.

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