Non-hydrogenation chemical processes for oil denitrification, deacidification and deashing, operating under mild atmospheric conditions with low investment and fast startup. Proprietary process + dedicated chemicals + technology package licensing + engineering design + training and startup, delivered as a complete package.
Non-hydrogenation complexation denitrification, with a dealkalization nitrogen rate of 70%-81%, reducing coker gas oil basic nitrogen from over 1000ppm to 300-600ppm while simultaneously removing metals and carbon residue, improving FCC/hydrotreating feed quality and light-oil yield.
Integrated complexation deacidification with resource recovery: under mild conditions (80-85℃, atmospheric pressure), naphthenic acid is deeply removed, taking distillate oil with an acid value above 5.0 mgKOH/g stably below 1.0 mgKOH/g, while recovering high-value naphthenic acid as a by-product.
A high-efficiency slurry settling agent working via a dual "coagulation + flocculation" mechanism: at a trace dosage of 0.04%-0.08%, the 24-hour deashing rate exceeds 90%, taking ash content from several thousand ppm down to below 200ppm, unlocking high-value uses such as needle coke, carbon materials, and low-sulfur marine fuel.
| Item | Coker Gas Oil Denitrification | Distillate Oil Deacidification | FCC Slurry Deashing |
|---|---|---|---|
| Feedstock | Coker gas oil, high-nitrogen distillates | High-acid-value diesel, gas oil, mixed distillates | FCC catalytic slurry oil |
| Core target | Basic nitrogen 1000ppm+ → 300-600ppm | Acid value 5.0+ → <1.0 mgKOH/g | Ash content thousands of ppm → <200ppm |
| Operating temperature | 80-100℃, atmospheric | 80-85℃, atmospheric | 90-100℃ |
| Core mechanism | Acidic ionic liquid complexation salt settling | Proprietary complexing agent selective settling | Coagulation + flocculation dual mechanism accelerated settling |
| Typical dosage | 1.0%-1.4% | Adjusted flexibly by feed acid value | 0.04%-0.08% |
| Key yield | Total oil yield ≥99.98% | Refined oil yield ≥92% | High clarified-oil yield, uniform top to bottom |
| Core benefit | Improves FCC light-oil yield, protects catalyst | Reduces naphthenic acid corrosion + recovers naphthenic acid as a resource | Upgrades slurry oil: needle coke / carbon materials / low-sulfur marine fuel |
The figures above are typical operating data; actual results vary with feedstock properties and dosage — a sample bench evaluation is recommended
What we provide isn't a single chemical, but a complete "technology + engineering + operational support" solution, supporting you from lab-scale validation through to stable industrial-scale operation.
Free sample evaluation, with measured data and selection recommendations based on your feedstock properties.
A complete process design package, operating procedures and control scheme.
Assistance with unit retrofit or new-build engineering design, using a modular, skid-mounted layout for rapid deployment.
Continuous supply of our in-house synthesized process chemicals and formulation optimization services.
Full training for your technical staff, with experts on-site to guide startup commissioning and ongoing optimization.
Share your feedstock's basic nitrogen / acid value / ash content properties, and our technical team will provide a tailored process package proposal and bench evaluation