We make you independent.

The use of fuels obtained from renewable raw materials and residual biological substances, and the associated utilization of the energy stored or contained in them is becoming increasingly attractive to potentially interested parties and plant owners in industrial and the recycling sector.

The main reasons for choosing biomass plants are that they give you independence from fossil sources of energy, and are an efficient and thus cost-effective way of generating energy. The EPC Group offers potential customers complete plants that can equally well use monovalent and/or bivalent fuel (a fuel mix). Wood chips (natural or waste wood) and granulated or pelleted substitute fuels made from residual material can be used as fuels. Solid residues, e.g. from the paper industry, can also be thermally utilized. 

Biomass plants

The main reasons for choosing biomass plants are to become independent of fossil sources of energy, and obtain an efficient, and thus cost-effective means of generating energy.

The plants offered by the EPC Group for generating energy from solid biomass comprise the following system components:

  • Biomass-fired steam boilers and hot water boiler systems
  • Fuel storage, fuel dosing systems
  • Flue gas cleaning systems (dust removal)
  • Peripheral devices 
  • The design ensures compliance with the emission limits (for example those in sections 4 and 17 of the German Federal Emission Protection Act).

Your advantages at a glance. What you can expect from us:

  • Calculation of the necessary investment costs / quick return on investment
  • Utilization of subsidies and allowances
  • Efficient use of regenerative energies with combined heat and power (CHP)
  • Optimization of the overall CO2 balance
  • Creation of a decentralized compact solution to provide an optimum energy supply
  • Assistance with the selection of the location
  • Safeguarding the fuel supply
  • Analyzis of the electricity and heat requirements

Implementing system solutions all over the world is a matter of routine for us.

Block-type thermal power station (BTTP)

A block-type thermal power station is a relatively small unit that generates electricity and heat locally, thereby avoiding the high losses incurred with long distribution distances. BTTPs are small power stations based on combustion engines. An engine drives a generator that produces electricity. The heat produced by the engine has to be dissipated by a suitable coolant. A BTTP generally has an integrated heat exchanger for cooling water. This cooling water can, for example, be the heating return. This system of energy generation and utilisation is known as combined heat and power (CHP) because it uses both the mechanical energy (power) generated by the engine as well as the thermal energy (heat) emitted by the engine driving the generator. The high efficiency of a combined heat and power system contributes towards reducing energy costs, specific climate-relevant emissions, and the consumption of energy resources. BTTPs are generally operated parallel to the public power supply.

EPC sets up systems with which mains substitution operation is possible. Excess current can be fed into the energy supplier's network. We produce an overall, economical concept for you, attend to applications for subsidies and approvals, and construct and maintain your plants.

EPC Exclusives

Innovative technologies using trichlorosilane and monosilane

The method of producing ultrapure silicon from metallurgic silicon is based on the thermal decomposition of highly pure, rectified chlorosilanes or silanes to form silicon with the separation and recycling of gaseous byproducts. The conventional commercial technology passes through the stage of producing trichlorosilane in a fluidized-bed reactor from metallurgic grade silicon and hydrogen chloride. The trichlorosilane is then subjected to multi-stage rectification until the purity required for the desired application is reached (solar grade or electronic grade). The thermal decomposition of trichlorosilane in a chemical vapor deposition (CVD) reactor to form silicon at 900 °C creates a mixture of gaseous by-products, which have to be prepared for recycling (vent gas recovery) back into the process. We have optimized the process for producing ultrapure silicon from monosilane. It now offers a significantly higher efficiency as temperatures are only around 600 °C, and the collection efficiency has been increased to almost 100% in comparison to the mere 25% achieved by conventional processes. Monosilane is obtained by the disproportionation of trichlorosilane and recirculation of the disproportionation products. Trichlorosilane is thus required in both methods.

Vent gas recovery plants, including rectification units

The gas mixture produced by the thermal decomposition of trichlorosilane in a chemical vapor deposition (CVD) reactor has to be separated into its constituent parts before the individual products can be recirculated. The monosilane method does not need these cycles, however Vent Gas Recovery is still part of our range or products.

Hazardous substance stores, including monosilane storage and handling systems

The monosilane synthesis gas is stored temporarily in vacuum-insulated containers prior to further processing or filling. The containers are equipped with a pressure build-up vaporizer and an internal cooling coil to facilitate cooling. The containers are a special product of our subsidiary company, CRYOTEC, which specializes in special cryogenic applications.

Process control optimized by fluidized bed reactor technology (FBR plants)

Silicon tetrachloride is the main by-product of both the production of trichlorosilane from metallurgic silicon with HCl in a fluidized-bed reactor and the disproportionation of trichlorosilane. The thermal decomposition of trichlorosilane in a CVD reactor also creates large quantities of silicon tetrachloride. The silicon tetrachloride is converted with hydrogen into trichlorosilane in a conversion reactor. This process can be run homogeneously with hydrogen at approximately 1,000 °C in graphite reactors. We use the more elegant heterogeneous method of controlling the process by feeding silicon into a fluidized-bed reactor.