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Catalytic reforming Back

Action Alteration/dehydration
Method Catalytic
Purpose Upgrade low-octane naphtha
Feedstock Coker, naphtha
Product(s)

High octane reformate
Aromatics
Hydrogen
Gas

Product(s) goes to

Blending
Petrochemical
Hydrogen recycling
Gas plant

The catalytic reforming process is used to reform n-paraffins (low quality naphtha) to iso-paraffins (high-octane gasoline components=reformate) and aromatic hydrocarbons for petrochemical feedstock by rearranging molecules or releasing hydrogen. Reformates are produced with high concentrations of solvents (benzene, toluene and other aromatics) depending on the feedstock and catalysts. The main byproduct, hydrogen, is separated from the reformate to be used in other parts of the refining process (e.g. gas plant).

Impurities like chlorine, sulfur and nitrogen compounds can poison the catalysts. Therefore, removing impurities is counted as the primary step to the reforming process, where naphtha is exposed to hydrogen. The product is fractionated and the remaining contaminants and gases are removed. The desulfurized naphtha is then sent to the catalytic reformer, vaporized and passed through a series of fixed-bed reactors where catalyst exists. The effluent is cooled and goes to a separator where hydrogen-rich gases are separated from the top and the liquid products from the bottom are sent to a stabilizer, where lighter molecules (C4 and lighter) are sent to the gas plant and the final reforming product, reformate, is sent to the blending unit.

DMA 35 Ex Petrol

The DMA 35 portable density meter measures the density, SG and °API of samples on-site within seconds. The intrinsically safe instrument (ATEX-marking II 2 G Ex ib IIC T4) has a special housing, resistant to petroleum samples. It is therefore perfectly suitable for measuring petroleum samples in hazardous areas. The integrated RFID interface enables quick sample identification (e.g. tank number) before measurement. Measured results can be stored and printed or exported to a PC wirelessly via IrDA later on. The instrument fully complies with the ASTM D7777 standard.

Accuracy:
0.001 g/cm3

Repeatability s. d.:
0.0005 g/cm3

Measuring range:
0 g/cm3 to 3 g/cm3

Minimum sample volume:
2 mL

Benefits of DMA 35 Ex Petrol at Catalytic reforming

The DMA 35 Ex Petrol portable density meter measures the API gravity, API SG or API density (calculated from true density) of the different liquid final products resulting from catalytic reforming (product group B: refined products) directly at the sampling location for quick identification. It automatically displays the measured value, already compensated to your reference temperature of choice.