Even though air quality in Germany has improved considerably in recent decades according to the German Federal Environment Agency, a Harvard study published at the end of 2019 says air pollution has the capacity to damage almost every cell in the human body, and in animals. Accordingly, the cleanliness of the air we breathe – and other associated gases – is set to remain a key issue in all the spaces we occupy – whether in the office or in the great outdoors, at work or in leisure time.
Organic and inorganic components such as mercaptans or ammonia can lead to unpleasant odours and, at worst, even pose health risks. But both can be reduced quite simply – with the aid of activated carbon from CarboTech. It filters unwanted substances from air and gases – quickly, safely and reliably.
Biogas, solvents, hydrogen
Our activated carbons for air and gas cleaning are used in a variety of applications. For example in biogas production. Here, they filter hydrogen sulphide, which is harmful to engines, from the digester gas, thereby helping reduce wear and tear on engines used in generating electricity.
Many customers also rely on our products and expertise when it comes to recovering solvents from the air. For example, print shops and large tank farms use our customised activated carbons to capture solvents that have evaporated into the air from the printing ink or petrol (gasoline).
Apart from this, hydrogen purification is one of the key gas cleaning applications that use activated carbon. This is because the synthesis gases produced by chemical compound plants contain a lot of hydrogen. Complex purification systems filter the valuable gas from the air and make it recyclable. This would not be possible without our activated carbon.
The CarboTech experts are happy to advice you
But CarboTech does not simply supply you with activated carbon – our engineers have many years of experience and in-depth consulting expertise, and can therefore develop the ideal activated carbon solution for your specific application.
This starts with advice on the use of simple activated carbon blanks, and ends with the design and implementation of complex adsorption systems – we’re ready for any challenge. If required, we can even use our in-house laboratories to analyse your equipment and help you optimise your processes.
Discover what CarboTech can do for you! Our experts will be happy to assist.
Almost all manufacturing industry has to deal with polluted air in some shape or form. As soon as a machine starts up – be it a welding torch or a plastic extruder – substances are released into the air. Many of them must not be allowed vent to atmosphere, as they can cause unpleasant odours or harm people’s health.
Activated carbon – works locally and across large areas
Spent air is also a challenge in places like sewage treatment plants, printing works, commercial kitchens or inner-city tunnels: To comply with the strict limits set by legislators, the air must often be cleansed of organic and inorganic substances. But whether odours and pollutants are to be removed at specific locations only or throughout an entire production bay – when using activated carbon you can breathe a sigh of relief without any risk to your lungs.
Cigarette smoke contains 1,000 toxins
Which activated carbon solution is the right one for your application depends on what needs to be filtered from the air. For example, cigarette smoke contains around 1,000 different toxins. Organic substances can be removed by non-impregnated activated carbon, but inorganic substances such as sulphur, hydrocyanic and hydrochloric acid require the activated carbon to be specially impregnated.
CarboTech has the right solution
If you don’t know exactly how odours and vapours arise in your plant, our experts will be happy to advise you on finding the right solution for your business. With many years of experience and high levels of professional expertise, they’ve succeeded in solving every customer problem to date. No matter how specialist your application may be – because we manufacture and impregnate our activated carbon ourselves, we always have the right product for you. Our in-house laboratories helps ensure our activated carbon is of a consistently high quality. At CarboTech you don’t just buy activated carbon – you buy a solution to your spent air problem using our know-how and high standards of service.
Contact us for further information! And if things have to happen really quickly, we’ve the very answer: our mobile adsorbers (MAMS) are an inexpensive, easy-to-use solution. Just try our Plug&Clean proposition – you’ll see what we mean when you see how we clean!
Wherever materials are burned, exhaust fumes and flue gases are produced, for example in power plants where natural gas, coal or biomass is burned to generate electricity. This gives off toxic substances. One example is where coal is burned, forming mercury or highly carcinogenic polycyclic aromatic hydrocarbons (PAHs for short) which must not be allowed to escape to atmosphere.
Waste incineration and industrial processes
Waste incineration and industrial processes such as glass production also give off a wide range of pollutants. Nitrous oxides (NOx) pose a particular problem: In the atmosphere they contribute to the depletion of ozone, have a negative impact on the climate and cause acid rain and smog. Such substances are rightly subject to strict legal requirements and limits to which companies must adhere.
Activated carbon for your application
Here, activated carbon helps filter spent air and protect both people and the environment. Whether low-cost powdered coal for entrained flow processes or pellets for large volume flows: CarboTech offers a wide range of solutions, enabling even older systems to be adapted to comply with the latest, usually stricter, limits. In tricky scenarios, our carbon catalysts can be a God-send. These are pelletised activated carbons with catalytic properties and requiring no special impregnation. They are produced by a special activation process patented by CarboTech in a multi-stage fluidized bed reactor, modifying the surface chemistry to produce the desired catalytic properties. This high-quality product is particularly effective in combatting nitrous oxides, for which increasingly strict legal requirements are being imposed.
High-quality activated carbon from CarboTech
Our experts have a wealth of experience in flue gas cleaning and will be pleased to advise on how CarboTech solutions can be used to bring your systems into line with legal requirements, protecting people and the environment in the process. Depending on the system and area of application, we’ll find a tailor-made solution for your needs. Our in-house laboratories is constantly testing the quality of our activated carbon, enabling us to supply product of a consistently high quality.
Has the CarboTech approach convinced you? Talk to one of our experts in person about your spent air or flue gas issues.
Biogas is an environmentally friendly source of energy
Biogas is becoming increasingly popular as an environmentally friendly source of energy – not least because the input mass involves waste products that are being put to good use. Biogas – itself nothing more than simple digester gas – is produced from a wide range of source materials. For example, farmers – or, in specific instances, power companies – use plant and animal waste products in their biogas plants to produce digester gases and thus, ultimately, electricity. Fermentation gases are also produced at (former) landfills and can be used for electricity generation.
Hydrogen sulphide removal and biogas upgrading
In biogas production, CarboTech’s activated carbon is mainly used in two processes: The most common field of application is removal of hydrogen sulphide, a component in digester gases produced in biogas plants. This highly toxic, colourless gas must be removed from the process because it increases wear and tear on the engines and catalytic converters used to generate electricity. Here, use of impregnated activated carbon mouldings helps filter out the H2S. This is because the gaseous hydrogen sulphide reacts with the impregnating solution containing potassium iodide to form elemental sulphur, and literally attaches itself to the activated carbon molecules. If additional hydrocarbons are present in the digester gases, the impregnated activated carbon cannot develop its full potential. The solution here is to use non-impregnated activated carbon upstream – this combined approach then removes all the above pollutants.
The second application is biogas upgrading: Technical bio-plants produce not just electricity but also natural gas. However, gas fed into the natural gas grid is allowed to contain only a small amount of CO2, as this inert gas reduces its calorific value. The carbon molecular sieve types once developed in Essen filter the unwanted substance from the biogas, making it usable for feeding into the natural gas grid.
Our in-house lab
Whether you are looking for a solution for one of the many existing applications or for a completely new one, we give you more than “just” activated carbon – because our experienced experts will go into consulting mode and offer the very best solution to your requirements. This enables us to predict exactly how long your activated carbon will remain active, i.e. how long its actual service life will be. And if you wish, we can analyse and optimise your plant in which the activated carbon is used. Above all, however, we’ll offer you activated carbon that always achieves the specified values with consistent quality, and we’re happy to back this up with our own laboratory data. We will always sell you the activated carbon product that suits your requirements best – not the one that happens to be most expensive. We’ll keep our promise: activated carbon of the highest quality, which is worth its price in every aspect.
If we’ve awoken your curiosity, give us a call – we will be happy to advise you!
Natural gas is a powerful source of energy, but one that can only be used to best effect once it is freed of an undesirable substance: hydrogen sulphide. This highly toxic, malodorous gas contaminates the natural gas, making it unusable for combustion – and thus for power generation. It produces sulphur dioxide, a gas that contributes significantly to air pollution and, among other things, causes acid rain which is detrimental to people and plant life.
Removing hydrogen sulphide
To render natural gas usable, therefore, it has to be desulphurised. Natural gas producers usually do this directly during production, even before the gas is transported to Germany via pipeline and pumped into its huge storage facilities. And therein lies the next problem: Sulphur production can occur in these underground storage facilities, caused either by the rock or by natural processes of decay. Before the gas from these storage facilities can be fed into the gas grid, it must therefore be freed of its hydrogen sulphide content once again.
Highly active carbon with loads over 100%
There is a simple answer to this desulphurisation requirement: When the natural gas is discharged, it is passed through large adsorbers filled with activated carbon. CarboTech also supplies a suitable solution for this application: Our highly activated carbon enables adsorption ratios of over 100% – i.e. where one metric ton of activated carbon can adsorb one ton of sulphur – and is specially impregnated to meet the high requirements of the natural gas segment to optimum effect.
Large energy companies have been relying on activated carbon from CarboTech for many years. The above-average quality of our products and the unique service focus of our experienced experts make CarboTech a reliable partner in natural gas desulphurisation.
Call us now and let us convince you of our products and our service!
The chemicals industry, fuel transportation and dry-cleaners – to name but a few – have one thing in common: They all want to do whatever they can to avoid the emission of solvents into the air, or to reverse such emissions. These are either important raw materials or pollutants for which upper limits must be observed. For example in the production of adhesives. Cyclohexane is used here, a colourless liquid that can cause headaches, nausea and dizziness when inhaled, and which irritates the eyes and respiratory tract. If one is in contact with the substance over a longer period of time, cyclohexane can even produce dermatitis, an inflammatory reaction of the skin. It is therefore important to filter this waste product out of the air.
Exclusive fluidized bed process
CarboTech has several highly activated carbons available for this application, including carbon pellets which are activated using our fluidized bed process – the only one of its type in the world – which gives a significantly larger active surface. The result is that our activated carbons last significantly longer than many other comparable products on the market. They also meet limit restrictions with greater precision and for a longer period of time. The bottom line is that while conventional “common or garden” product often has to be replaced after just two or three years, CarboTech’s activated carbon continues adsorbing pollutants for up to 10 years – and no more worrying about legal requirements either. CarboTech gives you peace of mind for longer before having to think about renewing or replacing your activated carbon.
Compare for yourself!
Our experts have years of experience in solvent purification and recovery, and will be happy to advise on how your activated carbons can be used for longer than before, thus preserving the environment – and your cash flow.
Not yet 100% convinced about our products? Then take us up on our offer to test your current activated carbon free of charge and compare it with our products. For this purpose, we are happy to place the capacities of our in-house laboratories at your disposal, where we also continuously check the quality of our own activated carbon.
Has our offer convinced you? Great! Then talk solvents with one of our experts.
It’s not just allergy sufferers who appreciate clean air to breathe – it is also a requirement for many industrial applications, for example in the electrical industry, the automotive sector, and in clinical settings. Ensuring clean air often means filtering out undesirable substances. These can be dust or pollen, for example, but often they are much more harmful substances such as nitrous oxides (NOx) – of which the Federal Environment Agency says millions of metric tons are released in Germany each year – or sulphur dioxides produced during combustion of coal and petroleum products. The latter is especially the case in road transport. It’s no wonder that filter and filter medium manufacturers are paying growing attention to filters for engines and for vehicle interiors. In addition, air filtration is also considered a growth area for cleanrooms.
Activated carbon solutions for laboratories, car interiors and more
CarboTech has a comprehensive range of activated carbons suitable for filtering all kinds of room air. These include pelletised carbons for large facilities such as laboratories, and also material for fixed-bed filters in cartridge solutions, or granulated solutions for paper filters. We offer automotive suppliers special filter solutions for car interiors using coconut shells. The benefit to you is that these are durable, light and inexpensive, and can also be impregnated with special substances that boost filtration performance for typical pollutants found in road traffic situations.
Expert knowledge from CarboTech
The benefit to you is that treatment of the activated carbon is carried out at our facility in Essen and is monitored continuously by our experts. Our activated carbons thus meet the highest quality standards consistently, ensuring ultimate compliance with agreed filtration parameters. Our experts have decades of experience in indoor air cleaning and know exactly what is important.
You would like to talk to someone for guidance or to place an order? Our experts are on hand and look forward to your call.