
Manufacturer of powdered, granulated and extruded activated carbon as well as carbon molecular sieves based in Essen

CarboTech AC GmbH
Essen (DE)New on Amplifa
About CarboTech
CarboTech AC GmbH is a manufacturer of powdered, granulated and extruded activated carbon headquartered in Essen in the Ruhr area. The company operates integrated production facilities for the production, processing and packaging of activated carbons, activated coke and carbon molecular sieves (CMS). The service portfolio includes activation, reactivation (including fluidized-bed and rotary kiln processes), impregnation, contract grinding, mobile filter systems (Plug & Clean) as well as an exchange service with silo and multi-chamber vehicles. In addition, CarboTech offers laboratory and analysis services, consulting, training, waste disposal and logistics. The products are used, among other things, in air and gas purification, biogas and natural gas treatment, drinking water and wastewater treatment, hydrogen purification, gold recovery as well as in the food and beverage industry. The company's roots go back to the 1938 Steinkohlenbergbauverein (Hard Coal Mining Association) and Bergbau-Forschung GmbH; since 2005 it has belonged to the International Chemical Investors Group.
- Site
- Essen
- Processes
- Activation of carbon (production of activated carbon), Reactivation of activated carbon, Impregnation of activated carbon, Contract grinding (material grinding), Production of powdered activated carbon, Production of granulated activated carbon, Production of extruded activated carbon, Production of impregnated activated carbon
- Materials
- Activated carbon (powdered, granulated, extruded, impregnated), Activated coke, Carbon molecular sieves (CMS), AGXX-impregnated activated carbon, Hard coal (raw material for activated carbon), Powdered activated carbon, Granulated activated carbon, Extruded activated carbon
- Certificates
- Certified waste management company, Certification/management audit, DNV management audit
- Founded
- 1938 (root
- Industries
- Air and gas purification, Biogas, Natural gas, Drinking water treatment, Wastewater treatment, Food and beverages
- 01
Raw material coal or reactivated activated carbon
- 02
Activation/reactivation (rotary kiln, fluidized-bed process)
- 03
Impregnation
- 04
Grinding
- 05
Processing
- 06
Packaging
- 07
Logistics and exchange service
- 08
Disposal/recycling (certified waste management company)
Products and Materials
Powdered activated carbon
Use in water and wastewater treatment, food and beverage processing; also available as contract grinding with a broad particle range.
Granulated activated carbon
For adsorbers in drinking water treatment and air and gas purification.
Extruded activated carbon
Formed carbon for gas-phase adsorption, e.g. exhaust gas and biogas treatment.
Impregnated activated carbon
Functionalized activated carbon for special adsorption tasks, including AGXX-impregnated activated carbon with Heraeus Precious Metals.
Activated coke
For adsorption applications in air and gas purification.
Carbon molecular sieves
Enable 99.999 % pure nitrogen and hydrogen production in PSA air separation plants.
Locations

Essen
DEHeadquarters as well as production and processing site (activation, reactivation, grinding, packaging, laboratory)
- Materials
- Activated carbon (powdered, granulated, extruded, impregnated), activated coke, carbon molecular sieves
- Rotary kiln for reactivation
- Fluidized-bed plant
- Heat recovery system
- Grinding plant
- Packaging plant
- Mobile Plug & Clean filter systems
Products



Inside the production



Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Activation of carbon (production of activated carbon)Other | – | – | – | – | Carbon, Activated carbon |
| Reactivation of activated carbonOther | – | – | – | – | Activated carbon |
| Impregnation of activated carbonOther | – | – | – | – | Activated carbon |
| Contract grinding (material grinding)Other | – | – | – | – | Activated carbon |
| Production of powdered activated carbonOther | – | – | – | – | Activated carbon |
| Production of granulated activated carbonOther | – | – | – | – | Activated carbon |
| Production of extruded activated carbonOther | – | – | – | – | Activated carbon |
| Production of impregnated activated carbonOther | – | – | – | – | Activated carbon |
| Production of carbon molecular sieves (CMS)Other | – | – | – | – | Carbon |
| Grinding, packaging and processing of activated carbons, activated coke and CMSOther | – | – | – | – | Activated carbon, Activated coke, Carbon molecular sieves |
| Exchange service (replacement of filter material incl. silo and multi-chamber vehicles)Other | – | – | – | – | Activated carbon |
| Mobile Plug & Clean filter systems (rental of mobile adsorbers)Other | – | – | – | – | Activated carbon |
| Laboratory and analysis servicesTesting | – | – | – | – | – |
| Consulting, training, waste disposal and logisticsEngineering | – | – | – | – | – |
6 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Rotary kiln (for reactivation) | – | – | – | – | Essen, Germany |
| Fluidized-bed plant (fluidized-bed process for the reactivation of activated carbon) | – | – | – | – | Essen, Germany |
| Heat recovery system for activation and reactivation | – | – | – | 2016 | Essen, Germany |
| Grinding plant | – | – | – | – | Essen, Germany |
| Packaging plant | – | – | – | – | Essen, Germany |
| Mobile Plug & Clean filter systems | – | – | – | – | Essen, Germany |
Additional services
Reference customers
Quality and Certification
CarboTech AC GmbH and CarboTech Production GmbH are certified as certified waste management companies; a successful audit by DNV confirms the management and improvement system. In-house laboratories offer analysis and testing services for product quality.
| Evidence | Essen |
|---|---|
| Certified waste management company | |
| DNV management audit |
History
- 1938
Foundation of the Steinkohlenbergbauverein as the origin of the company
- 1956
Pilot-scale plant for activated carbon production at the Königin Elisabeth colliery in Essen
- 1958
Foundation of Bergbau-Forschung GmbH as the research institute of the hard coal mining industry
- 1970er
Development of carbon molecular sieves for the production of 99.999 % pure nitrogen and hydrogen
- 1974
Development of the reactivation of activated carbon using the fluidized-bed process
- 2001–2004
Spin-offs to Rütgers Chemicals AG and Rütgers CarboTech GmbH respectively
- 2005
Acquisition by the International Chemical Investors Group
- 2006
Renaming to CarboTech AC GmbH
- 2010–2013
Division into CarboTech AC GmbH, CarboTech Production GmbH and CarboTech Services GmbH
- 2016
Heat recovery system for activation and reactivation commissioned
- 2017
Rotary kiln for reactivation upgraded
- 2018
Expansion of the mobile Plug & Clean systems segment
- 2021
Market entry into food/beverage, cement and automotive; purchase of the site; sale of the Castrop-Rauxel site
- 2023
Expansion into a full-service provider including exchange service, grinding and packaging
- 2025
Certification as certified waste management companies; partnership with Heraeus Precious Metals (AGXX-impregnated activated carbon)