The propylene in this stream from FCC and coking units can be combined with isobutane in an alkylation unit to yield a high-value gasoline blending component—alkylate.
China National Offshore Oil Corp (CNOOC) has received government approval to begin international exports of diesel and gasoline cargoes in early May.
Nuclear magnetic resonance (NMR) and near infrared (NIR) process analyzers are highly effective in quantifying physical properties in hydrocarbons, especially where the feedstock, intermediate and final product streams are all interlinked.
The recent shift to lighter crudes has starved many US heavy oil units of feed. Maximizing asset use makes importing heavy oil for vacuum distillation and delayed coking attractive.
H2 is the lifeblood of 21st century refineries. The application of various technological advancements and core developments has been raising the bar in the design, build, operations and maintenance of H2 facilities.
This shift to lighter feeds for the SC will reduce the future availability of other petrochemical feedstocks—in particular, propylene.
The project included installing two hydrodesulfurization (HDS) units for the cracked naphtha produced by two catalytic cracking units, a coker naphtha hydrotreating (HDT) unit, and a catalytic reforming unit.
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Engineers and designers are highly skilled individuals. Forcing them to enter design changes using tables, forms and spreadsheets is unproductive and uneconomical, and it increases the likelihood of human error—this is the way that most instrumentation software systems currently work. For too long, software vendors have denied engineers and designers the simple practicality of a graphical visual engineering interface with “drag and drop” capability and inbuilt intelligence, ensuring changes are automatically replicated into all the associated data and databases.
D. GIBSON, AVEVA
As low oil prices make naphtha cracking margins in Europe and Asia more competitive, are investments in new, ethane-based petrochemicals capacity in the US and Middle East becoming less attractive?
Yes, ethane cracking is less economical
No, ethane cracking is still the future
Too early to tell