Trondheim, Norway




The CLC rig is a Double Loop Circulating Fluidized Bed reactor system used for research on chemical looping combustion. The design values are 150 kW fuel input and reactor temperatures of up to 1000°C. The rig consists of an Air Reactor (AR) and a Fuel Reactor (FR), interconnected by loop-seals and a bottom lifter. The reactor design is flexible, and the fuel reactor can be run both as a CFB and as a bubbling bed because of the possibilities of using the bottom lifter.

The reactors are 6 m tall with internal diameters 230 mm and 154 mm for AR and FR, respectively. The reactor system is equipped with exhaust gas coolers that can be cooled with pressurized air or steam. The main operational characteristics of the rig can be listed as follows:

  • Air feed flow rate up to 410 kg/h, preheat temperature 20 – 900°C for primary air to AR.
  • Total pressurized air supply: 10 m3/min air at 8 bar from own compressor.
  • Reactor pressure up to 300 mbar (g) and temperature up to 1000°C.
  • Methane, propane, hydrogen fuel gases, and nitrogen and CO2 for fluidization, fed from bottle batteries.
  • A steam generator is connected to the facility to provide steam for fluidization and enhanced fuel conversion.
  • Two screw feeders for solid fuels available, one for small fuel particles/powders (size from < 100 µm up to about 4 mm), one for larger particles such as biomass pellets (typical diameter 8 mm and length 20 mm).
  • Exhaust gas monitoring with an IR analyzer on each reactor plus an additional micro-GC on the FR exhaust to cover a larger range of compounds.
  • Temperature and pressur sensors throughout the system.

The control system is based on a National Instruments compact RIO controller. It is programmed using LabVIEW which enables us to execute quick changes in the control system software. It communicates with a Windows based system over network using an ethernet connection. This also enables other clients (i.e laptops, smart phones) to access the data acquired by the system. The control system currently counts 136 input channels and output channels, analogue and digital.

State of the Art, uniqueness & specific advantages

The SINTEF ER CLC Rig is currently one of the largest existing CLC laboratory rigs. The influence of small-scale effects is less pronounced, and the results will be more relevant for scale-up to larger plants. The facility is well suited to perform tests of different oxygen carriers and with the fuel reactor operating in different fluidization modes. Both gaseous and solid fuels can be used.

Scientific Environment

The SINTEF ER CLC Rig offers assessment of fuel conversion, oxygen carrier's attrition and other important characteristics of the CLC process through exhaust gas emission measurements and particle sampling during operation. Oxygen carrier particle samples can be analysed mechanically and chemically by another department at the campus. They can also contribute with some preparation of the oxygen carrier particles, especially on particle size classification.

Operating by

SINTEF Energy Research

SINTEF Energy Research
CAPTURE technologies:
Research Fields:
Fluidized bed reactor design, Fluid dynamics, Material science
Facility's fact sheet

Location & Contacts

Trondheim, Norway
Øyvind Langørgen
RICC Contacts - Secondary contact
Yessica Arellano

Facility Availability

Unit of access (UA)
Availability per year (in UA)
6 – 8 weeks
Present facility state of access
Partially Accessible
Expected duration, reason and impact on services until access is fully restored
Duration of a typical access (average) and number of external users expected for that access
Duration about 1-2 weeks.
Average number of external users expected for typical access
Number of external users: 2-3

Quality Control / Quality Assurance (QA)

Activities / tests / data are
Controlled: ISO 9001, ISO 14001 and ISO 45001

Operational or other constraints

Specific risks:
Necessary instructions for operation are important in order to reduce risks, one experienced person from SINTEF ER will anyhow have to participate. Most important risks are related to the handling of large amounts of oxygen carriers and handling and use of combustible gases and solid fuels. The facility is placed at SINTEF Multiphase site outside main SINTEF campus. Users must adapt to local security instructions.
Legal issues
Access to the labs of SINTEF Energy Research is dependent on compliance to all relevant procedures and policies of the institute relating to HSE and protection of the intellectual property.

CCUS Projects

EU-Funded CCUS Projects
SUCCESS (project no. 608571)
CHEERS - project no. 764697
Other CCUS Projects
FME Project
Nordic Energy Research - project no. 77732
Negative CO2

Selected Publications

Powder Technology 2013 Volum 246. s. 51-62. (2013)
Double loop circulating fluidized bed reactor system for two reaction processes, based on pneumatically controlled divided loop-seals and bottom extraction/lift
Bischi, Aldo; Langørgen, Øyvind; Bolland, Olav
International Journal of Greenhouse Gas Control, Vol 88, pp. 38-56, 2019. (2019)
11 000 h of Chemical-Looping Combustion Operation –Where Are We and Where Do We Want to Go?
A. Lyngfelt, A. Brink, Ø. Langørgen, T. Mattisson, M. Rydén, C. Linderholm
The 10th Trondheim Conference on CCS, Trondheim, Norway, June 2019. (2019)
Solid fuels operation in a 150 kWth CFB-based Chemical Looping Combustion pilot unit
Ø. Langørgen, I. Saanum, R. Khalil, N.E.L. Haugen
International Conference on Negative CO2 Emissions, May 22-24, 2018, Göteborg, Sweden (2018)
Chemical Looping Combustion of wood pellets in a 150 kWth CLC reactor
Ø. Langørgen, I. Saanum
Energy Procedia 114 (2017) 352 – 360 (2017)
Chemical looping combustion of methane using a copper-based oxygen carrier.
Øyvind Langørgen, Inge Saanum, Nils Erland L. Haugen