Industrial sectors

What does the project in question consist of?

Let's look at the example of a cement manufacturer

The project:
Recovering heat from gas (heavily loaded with dust) from a cement plant kiln to produce hot water and electricity (via an ORC (Organic Rankine Cycle) turbine.

Client expectations

• 'Increase profitability of the industrial site by using the heat from a cement plant kiln to produce hot water or electricity and distribute it to the neighbouring network.
• Ensure the reliability of the heat recovery plant without any disruption to the cement production process.
• Improve its environmental image.

AIT-STEIN's proposed solution

Accompany the client in the energy optimisation of its processes and in the recovery of waste energy. AIT-STEIN proposed several energy recovery scenarios and then defined the best and most efficient technical solution to be implemented.

The installed equipment has been designed to adapt to changes in the recovery process.

What does the project in question consist of?

Let's look at the example of a fibreglass and car glass manufacturer.

The project:

This project involves optimising the furnace's consumption of oxygen and natural gas to improve its efficiency.

Client expectations

• Reduction in the consumption of oxygen and natural gases while improving the quality of the fibreglass produced and the efficiency of the industrial site.
• Reduction of pollutant emissions.

AIT-STEIN's proposed solution

This industrial site uses an oxycombustion furnace (the most ecological furnace in the world, that runs on pure oxygen instead of air. There is therefore no nitrogen oxide NOX produced during combustion).

AIT-STEIN designs a virtuous tailor-made solution:

Generating hot air from the 1,200°C fumes (Heat Ox process) produced by the oxycombustion furnace to heat the gas and oxygen supplied to the furnace burners.

Why reheat?
The energy thus transferred to the oxygen and natural gas makes it possible to reduce consumption.

What does the project in question consist of?

Let's look at the example of a steel manufacturer.

The project:

Recovering the waste heat from the fumes from the stoves in order to preheat the blast furnace gas (fuel for the stoves) and the air (combustion).

Client expectations

• Reduce fuel consumption (natural gas NG).
• Improve the site's efficiency and reclaim the gases from blast furnaces.

AIT-STEIN's proposed solution

Imagining, designing and commissioning the right solution for the energy optimisation needs of steel production.

AIT-STEIN reclaims the fumes from blast furnaces (combustion heat) and also the heat in the fumes from the stoves to then produce electricity while increasing the efficiency of the industrial site.

The energy recovered from the stove fumes is reinjected into the blast furnaces and into the combustion air, which considerably increases the plant's productivity. (efficiency of more than 92%)

What does the project in question consist of?

Let's look at the example of a dairy plant.

The project:

This industrial site transforms milk into butter, UHT (long-life) milk and milk powder.

• Heating the air in the milk atomisation process.
• Production of hot water for the industrial site.

Client expectations

• Reduce energy consumption.
• Improve the quality of atmospheric emissions.
• Reduce its environmental impact

AIT-STEIN's proposed solution

AIT-STEIN has developed a turnkey installation for the customer which allows the milk atomisation air to be pre-heated with a very high efficiency. The waste energy produced during this process is used to heat up the water needed by the neighbouring production plants.

The combustion process meets the highest environmental requirements.

What does the project in question consist of?

Let's look at the example of a plant producing nutritional additives for animals.

The project:

Optimisation of the incineration process of by-products from the production of nutritional additives for animals

Client expectations

• Recover and reclaim the energy produced during the combustion of co-products.
• Produce electricity from the recovered energy.
• Reduce the consumption of gases required for combustion.
• Meet environmental requirements for atmospheric emissions.

AIT-STEIN's proposed solution

To recover and reclaim energy, AIT-STEIN imagines and helps design a comprehensive customised solution:

Using natural gas, we incinerate the gaseous and liquid effluents generated during the process of producing nutritional additives, and we recover the energy produced at the end of the process (fumes).

The recovered energy will be used to heat combustion air, thus reducing gas consumption and generating superheated steam which will then be used to produce electricity.

What does the project in question consist of?

Let's look at the example of an energy services company for industrialists.

The project:

Construction of a cogeneration plant that will produce electricity and heat for a neighbouring network from biomass.

Client expectations

• Generating high-temperature, high-pressure steam to produce high-efficiency green electricity and consequently lowering heat prices for all users.

AIT-STEIN's proposed solution

AIT-STEIN helps local authorities reduce their environmental footprint. The group designs a tailor-made turnkey installation that will make it possible to:

• Reduce nitrogen oxide (NOX) emissions by SNCR (Selective Non Catalytic Reduction),
• Produce virtuous heat and green electricity (cogeneration),
• Optimise the treatment of fumes upstream of the chimney in order to purify it and trap the pollutants it contains.

What does the project in question consist of?

Let's look at the example of a ecological charcoal briquette manufacturer

The project:

Recover heat from the combustion of syngases produced during the wood carbonisation process:

• Production of hot oil to power an ORC (Organic Rankine Cycle) turbine,
• Produce hot air for wood dryers,
• Produce hot water to feed the process.

Client expectations

• Optimisation of the industrial process and reclamation of the energy produced during wood carbonisation.

AIT-STEIN's proposed solution

AIT-STEIN imagines, designs, manufactures and installs an environmentally friendly energy recovery solution. The energy produced during wood carbonisation is recovered and reclaimed. The recovered energy then produces hot air (essential upstream of the wood drying process) and green electricity.

This electricity will be distributed to the national grid.

What does the project in question consist of?

Let's look at the example of a water treatment plant.

The project:

Optimisation on the two sludge incineration lines:

• Recover heat from the fumes to heat the fluidization air introduced into the furnace.
• Use the remaining waste heat (waste/sludge reclamation) in the fumes to produce electricity.

Client expectations

• Reduce the consumption of natural gas (NG) at the oven burners.
• Produce electricity by a simple, flexible means for self-consumption on site.

AIT-STEIN's proposed solution

Thanks to AIT-STEIN's contribution, the available lost energy will be recovered.

By recovering heat from sludge incineration furnaces, electricity is produced through an ORC type turbine. In this way, the calories emitted from the waste heat are recovered.

What does the project in question consist of?

Let's look at the example of a Municipal Waste Incineration Plant (MWIP).

The project:

Recovering and reclaiming the heat emitted during the incineration of household waste

Client expectations

• Produce electricity,
• Produce hot water for a district heating network
• Increase the incineration capacity of this plant

AIT-STEIN's proposed solution

AIT-STEIN helps local authorities to turn waste into value creation and to reduce their carbon footprint.
To save resources, AIT-STEIN helps to transform and redistribute energy and to incinerate more. By recovering more heat and energy for district heating networks and injecting part of the water from waste treatment into the boiler, the plant's waste treatment capacity is increased.

In addition, the water recovered for the incineration process considerably reduces the amount of water previously discharged.
And by switching from wet incineration flue gas treatment to a dry treatment, pollutant capture is improved and the plume (steam) at the stack outlet is considerably reduced.

What does the project in question consist of?

Let's look at the example of a refinery.

The project:

This project consists of modernising and optimising the main refineries of an oil company.

Client expectations

• Reduction of CO2 emissions during the oil transformation process while improving the energy efficiency of refineries.

AIT-STEIN's proposed solution

AIT-STEIN imagines, designs and delivers a virtuous tailor-made solution. Equipment adapted to the client's needs is installed in isomerisation and Naphtha units in order to achieve an acceptable level of impurities in the oil transformation process.