Octane
Maximizing diesel hydrotreater profit by multivariable optimization: A case study
A diesel hydrotreater (DHT) is a critical unit within an oil refinery. A DHT processes the diesel range fractions obtained from different units of the refinery—such as from the crude distillation unit and the delayed coker unit—to adhere to diesel fuel market specifications.
Business Trends
Rovuma LNG, a JV comprised of ExxonMobil, Eni and China National Petroleum Corp., will likely delay its final investment decision (FID) on the group’s $30-B Mozambique LNG project.
Refining: Despite decline, Group 1 base stocks are here to stay
Given increasingly stringent automotive specifications and the advent of the International Maritime Organization’s 2020 sulfur regulations, the continued decrease in Group I base stocks demand should come as no surprise for anyone in the industry.
Octane enhancement avoiding both high reformer severity and alkylation
An innovative refinery process arrangementa converts butane-rich, light paraffinic streams—preferably containing a high proportion of isobutane—into butylene by dehydrogenation.
Cost-effective naphtha hydrotreating unit revamp to increase high-octane reformate production
India, which is the third-largest economy in the world, is home to nearly 18% of the world’s population (nearly 1.4 B).
Safe and sustainable alkylation: Performance and update on composite ionic liquid alkylation technology
Market and regulatory factors are pressuring refiners to adopt safe and sustainable processes for the production of clean-burning and environmentally friendly fuels.
Construction
Nigeria LNG (NLNG), a consortium comprised of Nigerian National Petroleum Corp. (NNPC), Shell, Total and Eni, has greenlighted the expansion of the Bonny Island LNG terminal.
Executive Viewpoint: Fuels and petrochemicals will continue to help humanity thrive
A 15-yr rise in U.S. exports of refined products continued in 2019 with the nation exporting more than ever, underscoring the importance of these products to fueling a growing world. In the latter half of the last decade, U.S. petrochemical production capacity increased—with more than $20 B invested in domestic petrochemical projects in the last 2 yr alone—and exports of petrochemicals and petrochemical feedstocks rose, as well.
FCCU catalyst reformulations: Reducing risk and guaranteeing value with collaboration/testing
Hellenic Petroleum S.A.’s Aspropyrgos refinery is located near Athens, Greece. It has a total refining capacity of approximately 7.5 MMtpy and a Nelson complexity index of 9.7. The refinery was built in 1958 and has undergone several upgrades, including the installation of a fluid catalytic cracking unit (FCCU).
A new liquid-phase isomerization process for xylene loop debottleneck and energy savings
In a typical xylene loop, C<sub>8</sub> aromatics are fractionated out of a heavy reformate C<sub>8</sub>+ aromatics stream and collected in the xylene column overhead. Then, paraxylene (PX) from the C<sub>8</sub> aromatics stream is recovered as product—usually by an adsorption or crystallization process—in the PX recovery section.
- ExxonMobil plans 1 Blbs/yr of advanced recycling by 2027 11/22
- Gauging the likely Trump effect on U.S. energy and power sectors 11/22
- Russia's Lukoil restoring cracker at NORSI refinery, gasoline output rising 11/22
- Nigeria's local currency crude sales fall short of target, Dangote refinery says 11/22
- U.S. October gasoline imports hit post-pandemic low on slump in European shipments 11/22
- Clean Hydrogen Works awards McDermott FEED contract for Ascension Clean Energy (ACE) project 11/21
