Hot biogas conditioning using pulsed corona

A new technology area for pulsed corona is hot biogas cleaning, important in view of the growing interest in biomass gasification. Our work concentrates on the development and optimization of pulsed electrical methods for treatment of thermally generated biogas. Corona energized by narrow voltage pulses (100 kV) makes a well ordered and concentrated deposition possible of electrical energy from a circuit into a hot polluted gas. The created plasmas can break down various contaminants. Successful introduction of pulsed corona for industrial processes very much depends on the reliability of high-voltage and pulsed power technology and on the efficiency of energy transfer. In addition, we must achieve adequate electromagnetic compatibility (EMC)

Efficiency and reliability of a repetitive pulse source for continuous pulsed corona processes

Successful introduction of pulsed corona for industrial applications depends very much on the reliability of the high-voltage and pulsed power technology, as well as on the efficiency of energy transfer from the AC-mains to the corona discharge.Furthermore adequate electromagnetic compatibility (EMC) should be achieved between high-voltage pulse source and surrounding equipment. A prototype of an industrial high-voltage pulse source which closely meets these demands has been developed

Hot biogas conditioning using pulsed corona

A new technology area for pulsed corona is hot biogas cleaning, important in view of the growing interest in biomass gasification. Our work concentrates on the development and optimization of pulsed electrical methods for treatment of thermally generated biogas. Corona energized by narrow voltage pulses (100 kV) makes a well ordered and concentrated deposition possible of electrical energy from a circuit into a hot polluted gas. The created plasmas can break down various contaminants. Successful introduction of pulsed corona for industrial processes very much depends on the reliability of high-voltage and pulsed power technology and on the efficiency of energy transfer. In addition, we must achieve adequate electromagnetic compatibility (EMC)

Decomposition of VOCs in a continuous high-voltage pulsed corona process

To decompose VOCs (volatile organic compounds) in an air stream several new technologies arc emerging. We are using a corona reactor for decomposing these VOCs. The advantage of our pulsed corona process is the energy efficiency with which the VOCs decompose. To examine the reactor, a model is developed which can describe the conversion of the VOCs in our industrial proto type high-voltage pulsed corona reactor

Decomposition of VOCs in a continuous high-voltage pulsed corona process

To decompose VOCs (volatile organic compounds) in an air stream several new technologies arc emerging. We are using a corona reactor for decomposing these VOCs. The advantage of our pulsed corona process is the energy efficiency with which the VOCs decompose. To examine the reactor, a model is developed which can describe the conversion of the VOCs in our industrial proto type high-voltage pulsed corona reactor

Pulsed corona tar cracker

This research concentrates on the application of pulsed corona discharges to crack heavy tar components (hydrocarbons) of thermally generated biogas into lighter ones. The method has the advantage that it can operate at a high temperature and be retrofitted to existing installations. The corona discharge is energized by 100-150-ns-wide voltage pulses (100 kV) at a continuous repetition rate of 600-1000 pulses per second. The power dissipated by the corona discharges is 1.5 kW average and 50 MW peak in each pulse. To be cracked by discharges, the hydrocarbons of the tar mixture need to be gaseous, and therefore, the corona reactor must operate at a high temperature. During this first phase of the program, the reactor runs at a modest temperature of up to 200°C. The reactor is a 3-m-long stainless steel cylinder, 0.25-m diameter with a corona wire along the axis. The pressure is 1 atmospher