CALIX LTD

Their core work

Calix is an Australian industrial technology company that developed the "Direct Separation" calcining process — a proprietary reactor design that restructures lime and cement kilns so that process CO2 released during limestone calcination is captured as a pure, ready-for-storage stream, without mixing with combustion flue gases. This approach sidesteps the expense of bolt-on post-combustion capture systems and makes CO2 capture economically viable for two of the hardest industries to decarbonize. The EU's LEILAC project series was specifically constructed to test this technology at European industrial scale, first as a pilot and later at demonstration scale, confirming that Calix's process is the technological core around which the consortium was built. As an Australian SME participating in H2020, they are an unusual case: their inclusion was justified by the uniqueness of their technology, not by geography.

What they specialise in

How they've shifted over time

In the first phase (LEILAC, 2016–2021), Calix's EU work was entirely focused on a single technical question: can the Direct Separation calcining process physically isolate CO2 at pilot scale in real cement and lime facilities? The keyword profile is almost entirely about the mechanism itself — "calcining technology", "eliminate carbon dioxide emissions", "low capital and operating cost". By LEILAC2 (2020–2026), that question appears answered: the vocabulary shifts to "CO2 hub", "CCUS", "CCS", and "low cost carbon capture" — the language of commercial deployment and infrastructure integration rather than laboratory proof. The trajectory is unambiguous: from technology validation to building the commercial and policy case for widespread industrial adoption.

Calix is moving toward commercial deployment readiness — future collaboration opportunities are most likely in industrial decarbonization clusters, CO2 transport and storage infrastructure projects, and policy-facing initiatives that need a credible low-cost capture technology anchor.

How they like to work

Calix does not lead EU projects — they have been a participant in both their H2020 engagements — but this understates their centrality: the LEILAC project series exists specifically to test their proprietary technology, making them the de facto technology anchor around which the consortium is structured. They engage within large, multi-country consortia (27 partners across 10 countries from just two projects), consistent with the scale of industrial demonstration programs in the energy sector. Working with Calix means engaging with a company that is protective of its core IP but willing to open it up for collaborative validation at European industrial scale.

Across two projects, Calix has built direct working relationships with 27 partners in 10 countries, spanning European cement producers, industrial research institutes, and process engineering firms — a concentrated but high-quality network at the heart of the European industrial decarbonization ecosystem. As an Australian company, their cross-continental reach is notable and reflects the uniqueness of their technology position.

What sets them apart

Calix is exceptionally rare among H2020 participants: an Australian SME whose technology was judged important enough that EU-funded research was structured around proving it works. In the cement and lime decarbonization space, their Direct Separation approach is genuinely differentiated — it avoids the major capital cost of post-combustion retrofit by capturing CO2 at the point of chemical release inside the kiln itself. For any consortium or business working on hard-to-abate industrial sectors, Calix brings proprietary process technology that no European competitor currently replicates at the same maturity level.

Highlights from their portfolio

• LEILAC
  The founding EU pilot that first demonstrated Calix's Direct Separation technology in a real lime and cement manufacturing context, spanning five years and establishing the credibility needed for the follow-on demonstration.
• LEILAC2
  A six-year Innovation Action (2020–2026) at demonstration scale — the most advanced EU-funded test of the technology, with explicit integration into broader CCUS and CO2 hub frameworks, representing the commercial pre-deployment stage.