Introduction

The IEAGHG High Temperature Solid Looping Cycles Network (HTSLCN) aims at bringing together researchers and developers of CO₂ capture technologies that operate at high temperatures in cyclic processes using either circulating or fixed beds of solids.

The 5^th HTSLCN Meeting was held from 2^nd to 3^rd September 2013 at Queens’ College, University of Cambridge, UK.

Key Messages

• The results from the pilot plants show that there is further improvement in CO₂ capture efficiencies and fuel conversion rates in both calcium looping (CaL) and chemical looping combustion (CLC).

• Certain impurities, such as SO₂ and H₂S, have an adverse effect on the sorbent carrying capacity in CaL and the reduction rate in CLC but there are ways to enhance performance.

• CaL processes can be more environmental friendly than conventional CO₂ capture technologies.

• For both CaL and CLC only limited cost estimates are available, so it will be necessary to establish and validate techno-economic performance figures.

• The most pressing question, in particular regarding CaL, at the moment is: when will the first large-scale demonstration go online?

• The attendees were able to visit the research facilities at Cranfield University.

• The Scientific Committee gave away two awards for the best presentations to Markus Junk (Technische Universität Darmstadt) and Vincenzo Spallina (Eindhoven University of Technology).