UNKA ENGINEERING TECHNICAL PORTFOLIO
Crude Oil Refinery Systems
Explore the process units that make up a crude oil refinery: crude receipt, atmospheric and vacuum distillation, hydrotreating, reforming, conversion, hydrogen production and sulfur recovery. UNKA ENGINEERING integrates these systems with utilities and product handling around the approved crude assay, product targets and EPC scope.
COMPLETE PLANTS
Complex Refineries
Tank Farms & Loading SystemsREFINERY UNITS
Crude Distillation Unit (CDU)Primary atmospheric separation of stabilized crude into gas, naphtha, kerosene, diesel/gasoil and residue.OPEN DEDICATED PAGE →
Vacuum Distillation Unit (VDU)Low-pressure separation of atmospheric residue while limiting thermal cracking and coke formation.OPEN DEDICATED PAGE →
Naphtha Hydrotreating (NHT)Removal of sulfur, nitrogen and contaminants before reforming or product blending.OPEN DEDICATED PAGE →
Kerosene Hydrotreating (KHT)Hydrogen treatment to control sulfur, smoke point, color and stability as required.OPEN DEDICATED PAGE →
Diesel Hydrotreating (DHT)Catalytic sulfur and contaminant removal for low-sulfur diesel production.OPEN DEDICATED PAGE →
Continuous Catalytic Reforming (CCR)Octane upgrading of hydrotreated naphtha with hydrogen-rich gas production.OPEN DEDICATED PAGE →
Hydrogen Generation & PSAHydrogen production and purification sized to refinery consumers and purity requirements.OPEN DEDICATED PAGE →
Amine Gas TreatingRemoval of H₂S and selected acid gases from refinery fuel gas and process streams.OPEN DEDICATED PAGE →
Sour Water Stripping (SWS)Removal of H₂S and ammonia from refinery sour-water streams for reuse or wastewater treatment.OPEN DEDICATED PAGE →
Sulfur Recovery Unit (SRU)Conversion of acid-gas H₂S into elemental sulfur with tail-gas handling as required.OPEN DEDICATED PAGE →
Crude Preflash SystemFront-end removal of light components to reduce atmospheric-column vapor load and improve heat integration.OPEN DEDICATED PAGE →
Naphtha Light-Ends Removal UnitStabilization of straight-run or hydrotreated naphtha by removing dissolved gases, H₂S and light ends.OPEN DEDICATED PAGE →
Butane Removal & Naphtha Stabilization UnitFractionation that removes C₄ and lighter components from stabilized naphtha or conversion-unit liquid.OPEN DEDICATED PAGE →
Naphtha SplitterSeparation of full-range naphtha into light and heavy fractions matched to downstream processing.OPEN DEDICATED PAGE →CONVERSION UNITS
Fluid Catalytic Cracking (FCC)Catalytic conversion of vacuum gas oil and compatible heavy feeds into gasoline, LPG, light cycle oil and gas.OPEN DEDICATED PAGE →
Hydrocracking Unit (HCU)High-pressure catalytic conversion of heavy distillates into clean naphtha, jet and diesel-range products.OPEN DEDICATED PAGE →
Delayed Coking Unit (DCU)Severe thermal conversion of vacuum residue into lighter products and petroleum coke.OPEN DEDICATED PAGE →CLEAN FUELS SYSTEMS
Integrated Desulfurization SystemsCoordinated sulfur removal across naphtha, kerosene, diesel, gas and sour-water streams.OPEN DEDICATED PAGE →
Tail Gas Treating Unit (TGTU)Recovery of residual sulfur species from SRU tail gas to meet overall sulfur-recovery and emissions targets.OPEN DEDICATED PAGE →CRUDE OIL REFINERY SYSTEMS
Crude Receiving, Metering & BlendingReceives, measures, segregates and blends crude feed before desalting and distillation.OPEN DEDICATED PAGE →
Crude Desalting & DehydrationRemoves inorganic salts, free/emulsified water and suspended solids before the preheat train and furnace.OPEN DEDICATED PAGE →
Light Naphtha IsomerizationRaises octane of C₅/C₆ light naphtha with minimal aromatic formation.OPEN DEDICATED PAGE →
LPG Recovery & FractionationRecovers and separates refinery C₃/C₄ components from stabilizer, FCC or other gas streams.OPEN DEDICATED PAGE →
Merox / Sweetening SystemsConverts or removes mercaptans from LPG, naphtha or kerosene streams where catalytic sweetening is appropriate.OPEN DEDICATED PAGE →
Alkylation UnitCombines light olefins with isobutane to produce high-octane, low-sulfur alkylate.OPEN DEDICATED PAGE →
Jet Fuel Treatment & FinishingConditions kerosene-range material to meet sulfur, smoke point, freezing point, stability and cleanliness targets.OPEN DEDICATED PAGE →
Refinery Product Blending & CertificationCombines component streams into controlled finished fuels while protecting specification and traceability.OPEN DEDICATED PAGE →