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Catalytic Conversion Processes
Published in Marcio Wagner da Silva, Crude Oil Refining, 2023
The main process variables of the isomerization processes are temperature, operation pressure, and space velocity. As aforementioned, temperature is normally reduced and can vary between 120 and 250°C depending on the activity of the employed catalyst due to the isomerization reaction characteristics, which seek to operate under lower temperatures.
Introduction to Industrial Safety and Hazard
Published in Mihir Kumar Purkait, Piyal Mondal, Murchana Changmai, Vikranth Volli, Chi-Min Shu, Hazards and Safety in Process Industries, 2021
Mihir Kumar Purkait, Piyal Mondal, Murchana Changmai, Vikranth Volli, Chi-Min Shu
Isomerization: Rearrangement of the atoms in an organic molecule, such as a change from a straight chain to a branched molecule or displacement of a double bond. Hazards are dependent on the stability and the reactivity of the chemicals involved and may, in some cases, require a penalty of 0.50.
Feedstock Chemistry in the Refinery
Published in James G. Speight, Refinery Feedstocks, 2020
Conversion processes are, in essence, processes that change the number of carbon atoms per molecule, alter the molecular hydrogen-to-carbon ratio, or change the molecular structure of the material without affecting the number of carbon atoms per molecule. These latter processes (isomerization processes) essentially change the shape of the molecule(s) and are used to improve the quality of the product (Speight, 2014).
Retrofitting isomerization process to increase gasoline quality and decrease CO2 emission along with energy analysis using Pinch Technology
Published in Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 2020
Zahra Ghazizahedi, Majid Hayati-Ashtiani
Isomerization is a process to increase gasoline octane number and reduce environmental pollutions. The main information of light naphtha feed and the final isomerization product of the existing unit are shown in Table 1. Table 1 shows the components playing important role in RON (Research Octane Number) calculation.