Exact(1)
High-complexity refineries typically produce the highest yields of lighter and higher-value products by application of catalytic cracking, hydrocracking, and coking capacity (Fig. 10).
Similar(59)
Given the pattern of modern demand (which tends to be highest for transportation fuels such as gasoline), the market value of a crude oil generally rises with increasing yields of light products.
The conversion, yields of liquid products and yields of light oil are presented in Fig. 2.
This will require the fine tuning of the catalyst system and reaction conditions to maximize the yields of light olefins.
DCC uses FCC principles with specific enhancements to produce large yields of light olefins and high octane naphtha.
From the data, there is little variation in the yields of light olefins with increasing C/O ratio.
The yields of light olefins first went up until a residence time of about 2.0 s, where they remained relatively constant.
Meanwhile, the serious cracking and condensation of hydrocarbon free radical were suppressed, which reduced the yields of light products (gas, naphtha) and heavy products (VR, coke), respectively.
Yields of light molecular weight pyrolytic compounds, notably aldehydes and hydrocarbons, were reduced, while yields of polycyclic aromatic hydrocarbons were unchanged and phenol yield was increased.
The impregnation of P leads to better hydrothermal stability and higher yields of light olefin (ethylene and propylene), but brings rapid decrease of acidity.
Comparing sample A with B, after removing basic nitrogen the conversion, yields of liquid products and yields of light oil increased from 80.74, 68.57 and 54.35 to 85.93, 76.27 and 61.89 %, respectively.
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