Isomerisation
H2, H2 Rich Make up and Recycle compressors.
Products: Reciprocating Compressor
Alkylation
Reactor H2 feed compressor.
Products: Reciprocating Compressor
H2/HGU Hydrogen Generation Unit
Feed gas into the plant and then feed the produced hydrogen to other process units. API & ATEX, dry gas compression solutions.
Products: Reciprocating Compressor
H2 /SMR Steam Methane Reformer
Force Draught and Induced Draught fans.
Products: Centrifugal Fans
H2/TGTU Tail gas treatment unit
Within a PSA hydrogen recovery plant igas is compressed and fed into vessels with adsorbent materials which selectively adsorbs impurities. Pure hydrogen exits the top of the adsorber. There are multiple vessels either active or being regenerated to ensure continuous recovery. Tail gas (low pressure gas with impurities) is processed through a compressor typically to the fuel gas system.
Products: Reciprocating Compressor, Oil Injected Screw Compressor, Oil Free Screw Compressor
HDT Hydro Treament Uni, HDS Hydro Desulfurisation Units
Feedstock containing sulfur is fed to reactors where hydrogen and catalyst break out impurities. The reactor effluent is cooled and separated with the hydrogen rich gas treated with amine to remove hydrogen sulfide before being compressed and recycled to the process. Additional hydrogen is added to the cycle via a make-up compressor. A further compressor processes the gas vented from the stripper section.
Products: Reciprocating Compressor, Centrifugal compressor, Screw Oil Injected Compressor, Screw Oil Free Compressor
Acid gas plant SRU Sulfur Recovery Unit furnace
Equipments boost supply air into the combustion furnace within the thermal stage of a Claus process. Howden supplies SRU blower packaged solutions with a protection level matching site area classification.
Products: Centrifugal Fan, Single stage blowers
Naphta and Distillate treatments. Desuphurisation. Main air blower
The blower provides combustion air into the furnace to generate heat, against a typical back pressure of 0.8 Bar.
Products: Single stage blowers
CDU Crude Distillation Unit - offgas (vent gas, tail gas, overhead)
The crude feedstock goes through a process of pre-heating, desalting and dehydrating, then heating and flashing the crude in the distillation column/ tower. The gas from off the top of the tower passes through a reflux drum to separate out any water and the gas is then compressed for transfer to the acid gas removal unit for sulfur treatment. Compress process gas from the distillation tower overhead. Howden deliver compressors packages with API & ATEX design & construction.
Products: Oil Injected Screw Compressor, Oil Free Screw Compressors
Dewaxing. H2 Make up and recycle compressors
Dewaxing is a process used in the production of lube oil and carried out using a solvent based or catalytic method. Catalytic dewaxing involves cracking of n-paraffins and compressed hydrogen is used to prevent coking. Howden deliver compressors packages with API & ATEX design & construction.
Products: Reciprocating Compressor
Dewaxing refrigeration system compressor
Dewaxing is a process used in the production of lube oil and carried out using a solvent based or catalytic method. Solvent dewaxing involves the refrigeration of lube stock and solvent as it passes through tubes that have a rotating scraper. A mechanical refrigeration system will require compressors. Compressors are used to process the refrigerant(Propane/ Propylene) or in a catalytic system to recycle hydrogen.
Products: Oil Free Screw Compressor, Oil Injected Screw Compressor
CR Catalytic Reforming CCR Continuous Catalytic Reforming units. Regeneration and Net gas compressor
Reactor catalysts deteriorate over time and are regenerated by use of circulating gas via a regeneration gas compressor (also termed recycle). Hydrogen is a by-product of the reforming process and is compressed after the separator for recovery by a net/rich gas compressor.
Products: Oil Free Screw Compressor, Oil Injected Screw Compressor, Reciprocating Compressor,
Garden City RF2
Site utilities. Air regeneration unit
Air blowers.
Products: Single stage blowers
Delayed Coker – wet gas
Overhead vapors from the drums flow to a fractionator (combination tower) which separates out gases, gasoline, diesel, heavy coker gas oil and recycles them. Pressure is controlled by a wet gas compressor processing the overhead gases from the tower.
Products: Oil Free Screw Compressor
FCC Fluid Catalytic Cracking - wet gas
CC Fluid Catalytic Cracking for Heavy and residue treatments. Vapours or wet gases from the reactor main column overhead are passed to the vapor recovery unit within the FCC where they are compressed by the Wet Gas Compressor (WGC) before being transferred to the high-pressure condenser/ receiver within the refinery gas concentration unit/ plant.
Products: Oil Free Screw Compressor
Heavy and residue treatments. Visbreaking
Howden supplies reciprocating compressors packages with API & ATEX design & construction.
Products: Reciprocating Compressor
VDU – vacuum/ overhead gas compressor
VDU Vacuum Distillation Unit. Residues from the CDU are heated in a vacuum furnace and then flashed in a VDU column with products being drawn from the column at the top, side and bottom for further processing. The gas (overhead vapors) existing the tower at the top passes to a vacuum system. The vacuum system has an overhead accumulator which separates liquid and vapors. The vapors may be compressed by a compressor or booster blowers.
Products: Oil Free Screw Compressor
Site utilities/N2 service
Delivery of pressurised nitrogen for site process needs. Dry compression ensure gas purity preservation. Howden supplies compressor packages with design & construction matching area protection levels specified by the site.
Products: Reciprocating Compressor, Vertical Reciprocating, Diaphragm Compressor
Site utilities/Ventilation & Aeration
At emergency evacuation points, axial and centrifugal provide reliable ventilation in crisis situations.
Products: Centrifugal fans, Axial fans
Site utilities/Air instrument compressors
Delivery of pressurised air for site process needs. Dry compression ensure gas purity preservation. Howden supplies compressor packages with construction matching area protection level specified by the site.
Products: Reciprocating Compressor, Vertical Reciprocating, Diaphragm Compressor
Site utilities/Electricity-Fuel gas
Onsite power is often generated using gas turbines. Modern turbines have increasing high pressure feed gas requirements designed to optimize power output. As available gas pressure is commonly lower than required it is boosted through a compressor prior to the turbine combustion chamber.
Products: Oil Injected Screw Compressor, Oil Free Screw Compressor, Reciprocating Compressor
Site utilities/WWTP Waste water treatment
Treating contaminants such are petroleum hydrocarbons, ammonia, and organic sulfur. For mechanical system or diffused aeration system, air supply is needed into the diffuser. Howden supplies air blowers for the application.
Products: Single stage blowers
Site utilities/Cooling towers
Cooling fans for mechanical draught cooling towers.
Products: Cooling fans
Site utilities/Air-cooled heat exchangers
Fans for air-cooled heat exchangers.
Products: Cooling fans
Site utilities/Air-cooled condensers
Fans for air-cooled condensers.
Products: Cooling fans
Site utilities/Ventilation & Aeration
At emergency evacuation points, axial and centrifugal provide reliable ventilation in crisis situations. Living quarters overpressure to protect rooms and staircases from hazardous fumes.
Products: Centrifugal fans, Axial fans
Process Support/Flare gas recovery
Various units within the refinery system will emit vapors which will be routed to the blowdown system/ Fuel Gas Recovery Unit. The gas is separated out from any remaining hydrocarbons and is compressed to the fuel gas system.
Products: Oil Free Screw Compressor, Reciprocating Compressor
Process Support/Extractions from capacities and reactors
Furnace and fired heater fans. Residual gas exhaust. Explosive gas exhaust (ATEX fans). Maintain safe environment free from the risk of explosive and hazardous gases. Safety-critical airlocks throughout the plant (Ability to quickly change large volumes of air).
Products: Centrifugal Fans
Process Support/H2 recovery
Howden supplies compressor packages with construction matching area protection level specified by the site.
Products: Reciprocating Compressor
Process Support/Tank VRU Vapor recovery
During storage, light hydrocarbons dissolved in the crude oil or condensate vaporize. Compression systems are used to recover the vented gas and reduce venting to atmosphere or flaring.
Products: Oil Injected Screw Compressor, Oil Free Screw Compressor
Process Support/Fired Heater furnace. FID Furnace
Fans for fired heater furnace. FID Furnace.
Products: Centrifugal Fans
Process Support/Incineration
General furnace applications for combustion of waste gas.
Products: Roots Lobe Blowers
Process Support/H2
Process H2 compressors.
Products: Single Shaft Multistage Vertically Split