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Direct Fired Heaters

As a global market leader, BIH specialise in the design, engineering, manufacture and supply of Direct Fired Heaters to the downstream oil, gas and petrochemical industries. BIH are renowned for solving complex technical challenges often pushing process and materials to the limit. All equipment is bespoke to suit a wide range of diverse applications that cost effectively meet each client’s specific requirements whilst minimising environmental impacts.

Direct Fired Heaters supplied by BIH have been at the heart of refinery operations for decades, providing the thermal energy needed to drive high temperature processes such as distillation, cracking and reforming. The evolution into petrochemicals and gas production applications has meant that BIH Fired Heaters are installed in a multitude of diverse production units and with the growth of Low Carbon Fuel production BIH Fired Heaters will remain an essential part of the Energy Transition.

Direct Fired Heaters are designed to client and international standards such as API 560 or ISO 13705. Supplying heaters worldwide, BIH take into consideration the national standards of the country of installation; for example, PED, ARH and CUTR.

BIH Fired Heaters are used in:

Distillation Processes
Titanium Dioxide Manufacturer
Solvent Deasphalting
Steam Methane Reforming
Alkane Dehydrogenation
Styrene Monomer Production
LAB
Gas to Liquids (GTL)

Naphtha Reforming
Hydrodesulfurization
Isomerisation
Thermal Cracking
LNG
Hydrocracking
Visbreaking
Hydrotreating

BIH’s diverse range of heaters available to suit the above processes include:
Thermal Crackers
Reformers
Natural Gas Heaters

 

Oxygen Heaters
TiCl4 Furnaces
Aromatic Furnaces
Hot Oil Heaters
Steam Superheaters
Arbor Tube Heaters
Platformers
Charge Heaters
Reboiler Heaters
Visbreakers
Hydrocrackers
Cokers
Crude Heaters
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Complete Compact Control (C3) WHRU Whitepaper

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ORC Whitepaper

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H2 Firing Whitepaper

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Reformers

Reformers are commonly used in the vital production of ammonia, methanol and hydrogen and will play an integral part in the global energy transition. BIH has the experience and scale to successfully deliver your reformer project.
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otgs

OTSGs

Having supplied some of the world’s first large scale offshore Once Through Steam Generators (OTSGs) BIH are at the cutting edge of this technology.
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waste heat recovery units side

WHRUs

With increasing focus on efficiency and environmental impacts, BIH’s Waste Heat Recovery Units (WHRUs) offer the ideal solution for gas turbine or gas stream heat recovery, both on and offshore.
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HRSGs

Combining our knowledge of both process heaters and waste heat recovery, Heat Recovery Steam Generators (HRSGs) are perfectly suited to BIH’s capabilities.
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modularisation

Modularisation

Managing equipment delivery effectively saving you engineering, logistical and installation costs
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Company Registration Number: 03357945
VAT Number: GB 692 8461 92

TECHNOLOGY CENTRE

  • Boustead International Heaters Limited
  • Europa House, Woodlands Court
  • Albert Drive, Burgess Hill
  • West Sussex
  • RH15 9TN
  • UNITED KINGDOM

Naphtha Reforming

Direct fired heaters – Naphtha reforming is the catalytic conversion of low octane Naphthas, distilled from crude oil, to high octane liquid products (reformates) which are then blended into the gasoline pool to increase the Octane rating and hence value. This is done through a catalytic process usually based on Platinum. In addition reformate is the main source of Aromatic precursor bulk chemicals used for conversion to plastics.

Hydrodesulfurization

Direct fired heaters – Hydrodesulfurization is a catalytic process of removing sulphurous compounds from hydrocarbons the purpose of which is to reduce subsequent harmful emissions in downstream products Produced Sulphur goes on to make elemental Sulphur or Sulfuric acid for industry. The process is based on the Hydrogen displacement of Sulphur (by breaking the Carbon-Sulphur bond) at elevated temperatures and pressures in a catalytic bed usually based on Molybdenum and Cobalt. The vast majority of refineries with have a HDS unit sometimes known as a Hydrotreater a BIH fired heater upstream of the HDS unit conditions the stream for the catalytic process.

Isomerisation

Direct fired heaters – Isomerisation is a ”bottom of the barrel” process of molecular conversion of a hydrocarbon into its more useful Isomer (equal molecular weight, quantitative and qualitative composition, but with different physical and chemical characteristics). It is usually intended to convert low Octane oil fractions containing straight-chain alkanes into high Octane gasoline components comprising branched-chain alkanes, through structural change of the Carbon skeleton or spatial and configurational change. This change takes place in the presence of a catalyst which depending on the change required could be finely dispersed platinum on an aluminium oxide catalyst, chlorinated Alumina or sulphated metal oxide. These isomeric compounds can be blended into gasoline to improve its octane rating and increase its value. BIH supply fired heaters to pre-heat the feed going into the isomerisation unit.

Thermal Cracking

Direct fired heaters Thermal cracking is a refining process in which heat and pressure are used to break down, rearrange, or combine hydrocarbon molecules. It is an extraction process in which hydrocarbons such as crude oil are heated to a high temperature to break the molecular bonds. It’s almost completely replaced by catalytic cracking nowadays.

LNG

Direct fired heaters – Liquefied natural gas (LNG) is natural gas (predominantly methane, CH4, with some mixture of ethane, C2H6) that has been cooled down to liquid form for ease and safety of non-pressurized storage or transport. It takes up about 1/600th the volume of natural gas in the gaseous state (at standard conditions for temperature and pressure). It is odorless, colorless, non-toxic and non-corrosive. The liquefaction process involves the removal of certain components, such as dust, acid gases, helium, water, and heavy hydrocarbons, which could cause difficulty downstream. The natural gas is then condensed into a liquid at close to atmospheric pressure by cooling it to approximately −162 °C, maximum transport pressure is set at around 25 kPa (4 psi). Touted as a cleaner form of fuel as compared with the traditional fossil fuels, LNG is principally used for transporting natural gas to markets, where it is regasified and distributed as pipeline natural gas.

Hydrocracking

Direct fired heaters – Hydrocracking is a process that breaks down complex hydrocarbon molecules into simpler ones by using a catalyst and an elevated partial pressure of hydrogen gas. This is an established and reliable method for transforming low-value heavy oil fractions into higher-value products. This is generally a more demanding hydrotreating process but is rapidly emerging as the principle conversion technology to maximize diesel yield due to its ability to produce ultra-low sulfur diesel (ULSD). Hydrocracking is normally facilitated by a bifunctional catalyst capable of rearranging and breaking hydrocarbon chains as well as adding hydrogen to aromatics and olefins to produce naphthenes and alkanes. Major products from hydrocracking are jet fuel, diesel, relatively high-octane rating gasoline fractions and LPG. All of these products have a low content of sulfur and contaminants.

Visbreaking

Direct fired heaters – Visbreaking is thermal cracking when the vacuum residue is less viscous and it can then be used to produce valuable products. A visbreaker is a processing unit in an oil refinery whose purpose is to reduce the quantity of residual oil produced in the distillation of crude oil and to increase the yield of more valuable middle distillates (heating oil and diesel) by the refinery. A visbreaker thermally cracks large hydrocarbon molecules in the oil by heating in a furnace to reduce its viscosity and to produce small quantities of light hydrocarbons (LPG and gasoline). The process name of “visbreaker” refers to the fact that the process reduces (or breaks) the viscosity of the residual oil. The process is non-catalytic.

Hydrotreating

Direct fired heaters – is a process widely used in the petroleum industry for producing high-quality fuels and as part of a scheme for upgrading heavy crude oil by reducing sulfur, nitrogen and/or metal content. It is the reaction of organic compounds with hydrogen, in the presence of a catalyst, to remove unwanted impurities such as sulfur, nitrogen and metals. Hydrotreating units are needed in the refinery to clean streams from material harmful to the catalysts. That is why they are located before the reformer, hydrocracker and FCC, etc. They are also needed to adjust the final product specification for various streams, such as light naphtha, kerosene and low sulphur fuel oils. Some typical hydrotreating processes are naphtha hydrotreating, kerosene hydrotreating, diesel hydrotreating and vacuum gas oil (VGO) hydrotreating. BIH supply furnaces for all of these applications.

Thermal Crackers

Direct fired heaters – Thermal cracking is a process in which hydrocarbons present in crude oil are subject to high heat and temperature to break the molecular bonds and breaking down long-chained, higher-boiling hydrocarbons into shorter-chained, lower-boiling hydrocarbons. Thermal cracking is often used to upgrade very heavy fractions or to produce light fractions or distillates, burner fuel and/or petroleum coke. Two extremes of the thermal cracking in terms of product range are represented by the high-temperature process called “steam cracking” or pyrolysis (ca. 750 °C to 900 °C or higher) which produces valuable ethylene and other feedstocks for the petrochemical industry, and the milder-temperature delayed coking (ca. 500 °C) which can produce, under the right conditions, valuable needle coke, a highly crystalline petroleum coke used in the production of electrodes for the steel and aluminium industries. More and more, thermal cracking is being replaced by catalytic cracking as this produces end products with a higher octane rating and therefore more economic value.

 

Reformers

Direct fired heaters – The purpose of the reformer is to upgrade heavy naphtha into a high-value gasoline blend stock by raising its octane. The primary product of the reformer is reformate, which is also the primary source of aromatics (such as benzene, toluene, and xylene) that are used as petrochemicals feedstocks. However, it also generates large amounts of hydrogen that can be used in the hydrotreaters and hydrocrackers. Reformer is also known as platformer, hydroskimmer, CRU, CCR, SCR, powerformer, ultraformer, magnaformer, rhenifomer. Reformers are split into two main types of technologies:

  • SR reformer – Older units mostly have fixed beds of catalyst that need to be regenerated every few months by burning off the coke that forms on the catalyst during normal operation. These semi-regen (SR) reformers typically operate at relatively high reactor circuit pressures to minimize the amount of coke formation and to extend the periods between regeneration shutdowns as long as possible, but as a result they only achieve octane numbers of 95-98 in the reformate product
  • CCR – Newer reformers are built with continuous catalyst regeneration (CCR) capability, so they can operate at lower reactor circuit pressures with higher coke make, as the coked up catalyst is moved continuously to a regenerator section where the coke is burned off the catalyst before it is returned to the reactor section. CCR reformers can often operate for three or more years continuously between turnarounds and can produce reformate product with octane numbers of 101-103

Natural Gas Heaters

Direct fired heaters – Natural gas heaters are part of onshore gas processing facilities used to impart energy to treat the sour, rich wellhead gas to remove contaminants, such as metals and sulphur, and further extract natural gas liquids: ethane for petrochemical processes, liquefied petroleum gas (LPG) for domestic heating and cooking and condensates as a feedstock for refineries.

Regeneration Gas Heaters

Direct fired heaters – Natural gas flowing from production wells or underground storage requires dehydration to protect the distribution system from corrosion and hydrate formation. In the commonly used solid desiccant absorption dehydration process, wet gas flows through a pressure vessel tower filled with solid desiccant. The moisture is absorbed on to the surface of the desiccant and the gas leaves the tower dry. When the desiccant is saturated with moisture, the gas flow is switched to another tower having dry desiccant. A regeneration gas heater is used to heat regeneration gas for drying out the desiccant in the wet tower. This process usually occurs cyclically or repetitively.

Crackers

Direct fired heaters – Catalytic cracking is widely used to convert the high-boiling, high-molecular weight hydrocarbon fractions of petroleum crude oils into more valuable gasoline, olefinic gases, and other products. Cracking of petroleum hydrocarbons was originally done by thermal cracking, which has been almost completely replaced by catalytic cracking because it produces more gasoline with a higher octane rating. It also produces byproduct gases that have more carbon-carbon double bonds (i.e. more olefins), and hence more economic value, than those produced by thermal cracking.

The feedstock to FCC is usually that portion of the crude oil that has an initial boiling point of 340 °C or higher at atmospheric pressure and an average molecular weight ranging from about 200 to 600 or higher. This portion of crude oil is often referred to as heavy gas oil or vacuum gas oil (HVGO). In the FCC process, the feedstock is heated to a high temperature and moderate pressure, and brought into contact with a hot, powdered catalyst. The catalyst breaks the long-chain molecules of the high-boiling hydrocarbon liquids into much shorter molecules, which are collected as a vapor.

Oxygen Heaters

Direct fired heaters – These furnaces are used for the production of Titanium Dioxide which has a wide range of applications including paint, sunscreen and food colouring, it is estimated that titanium dioxide is used in two thirds of all pigments. These furnaces are used in the Chloride process which converts ilmenite or other titanium sources to Titanium tetrachloride via reaction with elemental chlorine, which is then purified by distillation, and reacted with oxygen at high temperature to regenerate chlorine and produce the Titanium dioxide. Titanium dioxide pigment can also be produced from higher titanium content feedstocks such as upgraded slag, rutile and leucoxene via a chloride acid process

TiCl4 Furnaces

Direct fired heaters – These furnaces are used for the production of Titanium Dioxide which has a wide range of applications including paint, sunscreen and food colouring, it is estimated that titanium dioxide is used in two thirds of all pigments. These furnaces are used in the Chloride process which converts ilmenite or other titanium sources to Titanium tetrachloride via reaction with elemental chlorine, which is then purified by distillation, and reacted with oxygen at high temperature to regenerate chlorine and produce the Titanium dioxide. Titanium dioxide pigment can also be produced from higher titanium content feedstocks such as upgraded slag, rutile and leucoxene via a chloride acid process.

Aromatic Furnaces

Direct fired heaters – Aromatic furnaces are a generic term for furnaces used in the production of BTX (Benzene, Toluene, Xylene). In the catalytic reforming process a mixture of hydrocarbons with boiling points between 60–200 °C is blended with hydrogen gas, passed through the furnace to achieve a temperature of 500–525 °C and then exposed to a bifunctional platinum chloride or rhenium chloride catalyst at pressures ranging from 8–50 atm. Under these conditions, aliphatic hydrocarbons form rings and lose hydrogen to become aromatic hydrocarbons. The aromatic products of the reaction are then separated from the reaction mixture (or reformate) by extraction with any one of a number of solvents, including diethylene glycol or sulfolane.

Hot Oil Heaters

Direct fired heaters – Hot oil heaters are process units that heat a fluid (typically a thermal oil) which is subsequently used to heat other processes within a refinery/processing plant. This ‘indirect heating’ is used when the fluid to be heated would be adversely affected by direct heat or when precise control of the heating temperature is needed. Examples of the former include regeneration of glycol (from dehydration units), regeneration of amine (from CO2 and sulphur removal processes) and oil stabilisation. Examples of the latter include heating for reboilers in the fractionation of NGL’s (Natural Gas Liquids) either as a standalone process or as part of the LNG process.

Steam Superheaters

Direct fired heaters – This section is under construction

Arbor Tube Heaters

Direct fired heaters – This section is under construction

Platformers

Direct fired heaters – This section is under construction

Charge Heaters

Direct fired heaters – This section is under construction

Reboiler Heaters

Direct fired heaters – This section is under construction

Visbreakers

Direct fired heaters – This section is under construction

Hydrocrackers

Direct fired heaters – This section is under construction

Cokers

Direct fired heaters – This section is under construction

Crude Heaters

Direct fired heaters – This section is under construction

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