Treatment With Hydrotreatment Processes TRIZ Cases

Interstage stripping removes hydrogen sulfide between reaction stages, preventing olefin saturation and mercaptan formation during selective desulfurization.

Segmenting naphtha into lighter and heavier streams allows selective hydrogenation that removes di-alkenes while preserving mono-alkene octane rating.

Exothermic oligomerization heat produces steam for ethanol dehydration, eliminating external energy needs and maintaining catalyst stability.

Solvent extraction isolates sulfur compounds from whole crude oil, enabling targeted hydrotreating that minimizes capital costs and volume loss.

A hydrotreating process uses a separation zone between reactors to split streams, enabling efficient sulfur removal via noble metal catalysts.

Recycled utility fluid enables multi-stage hydroprocessing of pyrolysis tar, reducing viscosity and sulfur content while extending reactor lifetime.

Nitrogen removal via activated carbon adsorption reduces puffing during graphitization and improves electrode structural integrity.

Segmented hydrotreating and adsorption stages lower sulfur below 10 ppm while cutting hydrogen consumption by 20-40 percent compared to high-severity methods.

A two-stage recycle hydrocracking process maintains aromatic compound concentrations to keep heavy polynuclear aromatics in solution.

Segmenting hydrotreating into low and high severity stages removes refractory sulfur compounds while minimizing catalyst volume and capital expenditure.

Coking segments heavy feedstocks into fractions, enabling aromatic ring opening of coker gasoil to boost BTX yield without low conversion rates.

Two-stage thermo-catalytic process converts heavy hydrocarbon feedstock into high-quality products, minimizing coke formation and metal fouling.

Voltage-assisted dehydration prevents ammonium chloride salt formation during hydrotreating, maintaining catalyst activity for long-term operation.

Shared recycle gas compressor links hydrocracking and hydrotreating reactors to resolve sulfur contamination trade-offs.

Co-processing light cycle oil and heavy naphtha in one reactor increases aromatic yield while reducing hydrogen consumption.

Drying centrifugal separator residue converts waste into sellable bitumen, reducing disposal costs.

Segmented hydrocracking process upgrades refinery heavy residues to petrochemicals using distinct mono and poly aromatic streams.

A hydrotreating process strips effluent using hot recycled hydrogen gas to maintain temperature and separate components.

Dual-stage hydrocracking with middle fraction recycling balances C3/C4 ratios while suppressing excessive methane generation.

Segmented reaction zones process aromatic-rich and lean fractions separately to boost middle distillate yield while reducing catalyst deactivation.

Reversing flow in switchable guard reactors distributes clogging, delays pressure loss rise, and extends operating cycle duration.

Series hydrogen reactors saturate vacuum gas oil to produce API Group III base stock, reducing sulfur below 0.03% while maintaining production capacity.

Segmented hydrocracking and dehydrogenation process reduces methane production and heavy by-products while improving carbon efficiency.

Segmenting the reaction into two zones with distinct catalysts removes nitrogen and saturates polyaromatics to boost cetane index without expensive noble metals

Sequential solvent deasphalting and catalytic dewaxing remove waxes from high-wax feedstocks, maintaining high yields while meeting low pour point standards.

Activated carbon guard beds adsorb polynuclear aromatic compounds from unconverted oil feedstocks to produce treated base oils.

Segmented catalysts remove metals, nitrogen, and aromatics from heavy oil to resolve insufficient aromatic cracking activity in pretreatment processes.

A solid accumulation hydroconversion reactor integrates a hot gas stripping section to remove high-boiling products in vapour phase.

Prefractionator feeds stripped streams to a product fractionation column producing light naphtha, heavy naphtha, and distillate.

A two-stage hydrocracking process converts heavy coker gas oil into heavy lubricating base oils using segmented contaminant removal and mild conversion conditions.

Integrating extractive separation with catalytic conversion produces de-aromatized kerosene and BTX simultaneously, reducing process complexity.

Catalytic dewaxing converts wax molecules into liquid hydrocarbons, resolving the trade-off between improved pour points and unacceptably low product yields.

A reactor mixing device uses opposing nozzle loops to eject fluid into inter bed spaces, enhancing liquid gas mixing and temperature distribution.

Continuous liquid-liquid solvent extraction with a variable speed agitator adapts to diverse used oil feedstocks without system reconfiguration.

Integrating a hydrotreating unit with hydrocracking reduces sulfur content in diesel while maintaining high yield.

Selective adsorbent extracts benzene from reformate streams, recovering hydrogen and LPG gases while minimizing by-products.

Liquid hydrogenation reduces olefin content below 0.1% to prevent zeolite adsorbent deactivation during normal paraffin separation.

Saturating aromatics in the first stage prevents heavy polynuclear aromatic accumulation, eliminating unconverted oil purge and reducing equipment fouling.

Sequential shear mixing disperses catalyst in heavy oil, reducing coke production and improving light oil yield.

Fractionating feedstocks enables mild treatment of labile compounds and severe processing of refractory aromatics to achieve ultra-low sulfur levels.

Cold and hot stripping columns replace multiple fractionation units in hydrocracking recovery, cutting heater duty by 70% while maintaining LPG yield.

Steam stripping between reactors removes hydrogen sulfide and ammonia to prevent catalyst poisoning and maximize mid-distillate yields.

Segmented liquid-liquid extraction isolates C5 olefins for selective hydrogenation, reducing sulfur below 10 ppm while limiting octane loss to 1.5 RON.

Absorbent liquid extracts C5+ hydrocarbons from hydrogen-rich off-gas, meeting fuel gas specifications while preserving bottoms product yield.

A refining system alternates between producing distillate fuels and lube base stocks using adjustable operating conditions.

Selective pretreatments remove lipophilic phosphorus from renewable feedstocks, preventing catalyst deactivation during hydrotreatment.

A membrane filtration assembly removes heavy oil from spent catalyst particles, eliminating filter plugging and enabling efficient metal recovery.

Selective hydrogenation and hydrocracking convert refractory polyaromatics in pyrolysis fuel oil into high-value BTX compounds, maximizing recovery.

Reducing crystallization time below 72 hours and recycling directing agents lowers raw material consumption while increasing weight hourly throughput.

Multi-stage nickel catalyst hydrogenation reduces aromatic content in hydrocarbon fluids.