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Product Name
Complete-Set Small-Scale Modular Skid-Mounted Oil Refinery Plant (small scale oil refinery plant). Taking sulfur-bearing crude oil as core feedstock, it adopts the combined process of atmospheric-vacuum distillation, hydrotreating, catalytic reforming-isomerization and sulfur recovery. It can produce multiple products including K5 Euro-V-grade gasoline & diesel, aviation kerosene and heavy vacuum residue. All units are factory-prefabricated modular skids, suitable for medium-and-small-scale continuous oil-refining turn-key projects under complex climatic conditions such as cold-temperate zones.
| Key attributes - Vertical Distillation Equipment | ||
| 1 | Attribute | Value |
| 2 | Oil Type | Diesel |
| 3 | Phase | Three Phase |
| 4 | Voltage | Customized |
| 5 | Condition | New |
| 6 | Warranty | 1 Year |
| 7 | Raw Material) | Crude Oil, Used Ship Oil |
| 8 | Place of Origin | Henan, China |
| 9 | Brand Name | AOTEWEI |
| 10 | Name | Distillation Equipment |
| 11 | Advantages | Energy Saving, High Efficiency and Environmental Protection |
| 12 | Color | Customized |
| 13 | Function | Refined waste oil, tire‑derived oil, plastic‑derived oil, kitchen waste oil, etc. |
| 14 | Product Name | Refine equipment |
| 15 | After-sales Service Provided | Online Support |
| 16 | Type | Vacuum Filtration |
Features
Two-stage electric desalting & dehydration pretreatment unit:
The small scale oil refinery plant is equipped with skid-mounted two-stage high-voltage electric desalting modules. Specially designed for high-sulfur crude oil with high chloride-salt and high-water content, it reduces crude-oil salt content to within 3-5 mg/dm³ and removes mechanical impurities. It effectively protects heating-furnace tubes, heat exchangers and downstream hydrotreating catalysts, and adapts to feed conditions of high-sulfur Ural-type crude oil.
Atmospheric-vacuum combined fractionation skid-mounted unit:
The small scale oil refinery plant integrates atmospheric fractionation tower and vacuum fractionation tower. The atmospheric tower is fitted with multi-layer float valve trays while the vacuum tower adopts packing-type structure. Precise temperature control enables multi-fraction cutting to produce light / heavy naphtha, kerosene fractions, straight-run diesel oil and vacuum residue respectively. Fraction-cutting accuracy is controllable, and independent stripping systems are configured for each side-draw outlet.
Integrated modules of multiple hydrotreating, reforming and isomerization units:
The plant is equipped with skid-mounted units for naphtha hydrotreating, diesel hydrotreating & hydro-dewaxing, and aviation-kerosene hydrotreating. Naphtha hydrotreating removes sulfur and nitrogen impurities to safeguard reforming catalysts. The combined reforming-isomerization unit produces high-octane-number gasoline components and by-product hydrogen. Diesel hydro-treating coupled with isomeric dewaxing can produce regular summer-grade diesel and low-pour-point winter-grade diesel simultaneously to meet oil-product specifications under frigid-climate conditions.
Advantage
Strong adaptability to high-sulfur crude oil:
The full process of the small scale oil refinery plant is designed for sulfur-bearing crude oil. A complete desulfurization chain is formed covering electric desalting, multi-stage hydrotreating and sulfur recovery. It can directly process high-sulfur crude oil and produce K5 Euro-V-grade ultra-low-sulfur finished oil complying with Customs Union TR CU 013/2011 fuel specifications.
Fully modular factory-prefabricated skid-mounted design:
Most process, electrical and instrument units are prefabricated and integrated in-factory. Only module docking and assembly are required on-site, greatly shortening on-site civil-construction and installation periods. Integrated skids with equipment, piping and instruments facilitate ocean shipment and relocation.
Diversified products for cold-climate working conditions:
It can simultaneously produce Euro-V-grade 92# / 95# gasoline, summer-grade diesel, -26 ℃ low-pour-point winter-grade diesel, TS-1 aviation kerosene and commercial vacuum residue. One single plant realizes multi-category finished-oil production to satisfy project requirements in cold regions.
Self-sufficient hydrogen supply with controllable operating costs:
By-product process hydrogen generated from the catalytic reforming unit supplies all hydrotreating units of the whole plant, cutting costs for purchased hydrogen. The waste-heat heat-exchange network fully recovers heat from various fractions and reduces fuel consumption of heating furnaces.
Complete safety and environmental-protection system: Independent SIS safety interlock system and full-set explosion-proof low-temperature electrical equipment are adopted. Skid-mounted units for acid-gas recovery, flare and sewage pretreatment are supplied. Waste gas and wastewater are treated in accordance with local environmental-protection requirements. It supports third-party overseas EIA & safety-assessment review and is well-suited for overseas turn-key-project implementation.
Application Scenarios
- Overseas turn-key project for medium-and-small-scale crude-oil processing in cold-temperate zones: Build modular skid-mounted refineries in oil-producing cold-temperate regions to directly produce GOST-compliant Euro-V-grade vehicle-use gasoline & diesel and aviation kerosene.
- Comprehensive high-sulfur crude-oil processing project: Process Ural and other high-sulfur crude oil. Realize clean processing of high-sulfur crude oil through full workflows including distillation, hydrotreating and sulfur-recovery to obtain qualified finished oil products.
- Joint-production project for aviation kerosene and vehicle-use oil products: Simultaneously produce vehicle-use gasoline, winter / summer-grade diesel and TS-1 aviation kerosene to supply fuel for mining areas and industrial parks.
- Technical-renovation & upgrading project for existing small-scale refineries: Retrofit original simple fractionation plants by adding skid-mounted hydrotreating, reforming and sulfur-recovery units to upgrade industrial distillates to Euro-V-qualified vehicle-use finished oil.
- Integrated oil-refining project in resource-rich regions: Deep-process crude oil on-site for local sales of finished oil. Vacuum residue can be directly sold as commercial heavy fuel oil to improve regional industrial chains.
Packing & Shipping
Each skid-mounted module is split and optimized to fit 40HQ container dimensions. Extra-wide and extra-long pressure-vessel components are shipped by bulk ro-ro vessel. Complete packing lists are provided and customers' on-site loading supervision is supported.
FAQ
Q1: What feedstock can this small scale oil refinery plant mainly process?
A: It is mainly suitable for sulfur bearing crude oil such as Ural crude oil, and also compatible with partial medium gravity crude oil. Mechanical impurities of feedstock shall be controlled. Two stage electric desalting pretreatment unit must be activated for high salt crude oil. It is not recommended to take high viscosity heavy residual oil as primary feedstock.
Q2: Can oil products produced by the plant be directly used for vehicles?
A: Equipped with complete processes of atmospheric vacuum distillation, hydrotreating, reforming isomerization dewaxing and sulfur recovery, the plant produces gasoline and diesel complying with K5 Euro V (TR CU 013/2011) standards for direct vehicle application. It can also produce TS 1 aviation kerosene and salable vacuum residue.
Q3: What is the processing capacity of the equipment?
A: The modular standard design references an annual crude oil processing capacity of 1 000 000 tons (125 t/h feed rate). Customized downsized versions are available to adapt to continuous oil refining projects of different scales.
Q4: What by products are generated during production?
A: The sulfur recovery unit produces solid industrial sulfur. Vacuum residue from the bottom of vacuum tower can be sold externally as commercial fuel oil. Process dry gas is preferentially recycled as heating furnace fuel. Sulfur bearing sewage is sent to the pretreatment skid for subsequent discharge.
Production Process Flow
Crude-oil feeding → Two-stage electric desalting, dehydration and desalting pretreatment → Multi-stage preheating via heat-exchange network → Heated by atmospheric heating furnace and fed into atmospheric fractionation tower; Naphtha is obtained at atmospheric-tower top, while kerosene and straight-run diesel are drawn from side-draw outlets; Heavy oil from atmospheric-tower bottom goes into vacuum heating furnace and vacuum fractionation tower to produce wax oil and vacuum residue.
Naphtha is sent to naphtha hydrotreating unit for refining, then fed into catalytic reforming + isomerization unit. By-product hydrogen supplies hydrotreating systems for the whole plant. Blended K5-grade 92# / 95# gasoline is obtained.
Straight-run diesel enters diesel hydro-treating & isomeric dewaxing unit to produce summer-grade diesel and -26 ℃ low-pour-point winter-grade diesel respectively.
Kerosene fractions are fed into aviation-kerosene hydrotreating unit to produce TS-1 aviation kerosene.
Acid gas generated from each unit is delivered to sulfur-recovery system for recovery of industrial sulfur. Process dry gas is recycled as heating-furnace fuel. Sulfur-bearing sewage flows into pretreatment skid. All finished products go through cooling and on-line quality analysis before entering finished-oil tank-farm for storage. Oil-gas under abnormal working conditions is sent to ground flare system for harmless combustion.
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