Dangote Oil Refining Co. (DORC), a division of Nigerian conglomerate Dangote Industries Ltd. (DIL), has let a contract to Honeywell UOP LLC, a subsidiary of Honeywell International Inc., to provide technology licensing, design services, and critical equipment for its grassroots integrated refining complex now under construction in southwestern Nigeria’s Lekki Free Trade Zone, near the capital of Lagos (OGJ Online, Nov. 25, 2013).
As part of the contract package, UOP will license its proprietary residual fluid catalytic cracking (RFCC), unicracking, continuous catalytic reforming (CCR) platforming, penex, and butamer process technologies, as well as provide proprietary equipment required for the processes, the service provider said.
Alongside proprietary catalyst regeneration and dryer regeneration control systems, high-performance column trays, and heat exchanger tubes, UOP’s equipment delivery will include a modular CCR unit, catalyst coolers, a third-stage separator system for the RFCC unit, and two pressure-swing adsorption (PSA) units, UOP said.
Once completed, the Lekki complex will house the world’s largest single-train refinery and RFCC unit and will be equipped to produce Euro 5-quality gasoline and diesel as well jet fuel that meets international aviation specifications, UOP said.
Project overview
Initially planned at a capital cost of $9 billion and a crude processing capacity of 500,000 b/d to help Nigeria meet growing domestic demand for fuels and petrochemicals using its own crude oil production, the now $12-billion Lekki integrated complex will include a 650,000-b/d crude distillation unit and 3.6 million-tonne/year polypropylene plant (OGJ Online, Mar. 13, 2017).
While a revised schedule of unit capacities has yet to be released, a final environmental and social impact assessment (ESIA) report for the project issued in November 2015 and based on its original nameplate capacity outlined original process design capacities as follows:
• Crude distillation; 477,273 b/sd.
• Saturate gas concentration; 1,839 tonnes/day.
• Saturate LPG Merox; 18,700 b/sd.
• Kerosine merox; 119,200 b/sd.
• Mild hydrocracking (unicracking); 148,000 b/sd.
• Naphtha hydrodesulfurization; 115,000 b/sd.
• CCR platforming; 118,300 b/sd.
• Isomerization (penex); 52,000 b/sd.
• RFCC gasoline hydrodesulfurization; 71,300 b/sd.
• RFCC; 171,800 b/sd.
• Unsaturated LPG merox; 68,700 b/sd.
• C5-extraction merox; 20,800 b/sd.
• Propylene recovery; 68,700 b/sd.
• UOP huels selective hydrogenation; 25,900 b/sd.
• Sulfuric acid alkylation, regeneration; 26,300 b/sd.
• C4 isomerization (butamer); 8,400 b/sd.
• Hydrogen generation; 436 tonnes/day.
• Sulfur recovery; 230 tonnes/day.
• Amine regeneration (unsaturated); 108.4 tonnes/hr.
• Amine regeneration (saturated); 90 tonnes/hr.
• Nonphenolic sour water stripping; 100 tonnes/hr.
• Phenolic sour water stripping; 283 tonnes/hr.
DORC’s Lekki refining and petrochemical complex remains on schedule for startup in 2019, DIL said.
Contact Robert Brelsford at [email protected].
