Category: Multi-Slide Guides

The Digest’s 2025 Multi-Slide Guide to Digestate Processing for High-Value Bio-Fertilizer Production

August 5, 2025 | Jim Lane

Digestate processing aims to reduce quantity or purify biogas byproducts, driven by high transport costs and legal restrictions. The key innovation is producing high-value bio-fertilizer products like struvite, dried pellets, or ammonium sulphate solution. While direct land application remains common, establishing robust markets for these standardized bio-fertilizers is a critical bottleneck, necessitating legal clarity on […]

The Digest’s 2025 Multi-Slide Guide to Combined Biogas and Hydrochar Production from Organic Waste

August 4, 2025 | Jim Lane

The National Research Council Canada innovates in clean energy, converting wet organic wastes via combined bio and thermochemical processes. A key approach integrates Hydrothermal Carbonization (HTC) with Anaerobic Digestion (AD), bypassing energy-intensive drying. Case studies show this enhances biogas (methane) production from food waste and digestate, increases energy yield, and reduces waste. This flexible strategy […]

The Digest’s 2025 Multi-Slide Guide to Integrated Biorefineries Mission and Global Collaboration

August 3, 2025 | Jim Lane

The Mission Innovation Integrated Biorefineries Mission unites 23 governments to catalyze clean energy innovation, focusing on enhancing commercialization and reducing costs of biorefineries for sustainable fuels and chemicals. Its roadmap includes joint R&D (e.g., biopolymers, efficiency) and market/policy initiatives like harmonized SAF production modeling. A significant innovation is the new digital “Biorefinery Platform” for networking […]

The Digest’s 2025 Multi-Slide Guide to Policy Impact on Biorefinery Strategies

July 31, 2025 | Jim Lane

This project analyzes innovative policies’ impact on biorefinery strategies in Canada for radical GHG reductions. Using a case-study methodology with “Attractiveness Grids,” it quantifies the effect of monetized fiscal, land use, carbon, and targeted policies on biorefinery value chains. Results demonstrate significant project performance improvements with policies like carbon pricing and tenure modernization. This innovative […]

The Digest’s 2025 Multi-Slide Guide to Biorefineries as Integrators in a Circular Bioeconomy

July 30, 2025 | Jim Lane

This presentation positions biorefineries as crucial integrators for a circular bioeconomy, creating synergistic “systems of systems.” It defines integration as yielding more than the sum of parts, emphasizing resource exchange and enhanced resilience. An innovative “second 50% value” concept focuses on reliability, resilience, and flexibility against uncertainties. A new framework based on “Nature’s contributions to […]

The Digest’s 2025 Multi-Slide Guide to Biomass Combustion for Negative GHG Emissions with CCUS

July 29, 2025 | Jim Lane

IEA Bioenergy Task 32 investigates net negative GHG emissions via biomass combustion with CCUS. A newsworthy case study models full-scale CCUS at Denmark’s Skærbæk CHP plant, chosen for its green CO2, high operating hours, and location. Using the advanced Balmorel energy system model, simulations for 2035 show CCUS significantly increases district heating (from surplus heat) […]

The Digest’s 2025 Multi-Slide Guide to Dynamic Understanding of Waste-to-Energy Futures

July 28, 2025 | Jim Lane

Waste-to-Energy (WtE) is a complex system influenced by technical, economic, environmental, and societal factors. This presentation highlights the innovative need for models that address the socio-technical complexity of WtE, not just its technical aspects. “Participatory system dynamic modelling” is introduced as a key tool to foster consensus and facilitate strategy implementation among all stakeholders. The […]

The Digest’s 2025 Multi-Slide Guide to Heavy-Duty H2 Combustion

July 27, 2025 | Jim Lane

Sandia National Laboratories is advancing hydrogen internal combustion engines (H2ICE) for hard-to-electrify sectors, targeting 2024-2027 market entry. Key findings: increased swirl improves H2 mixing, yet cyclic variability remains. Crucially, hydrogen significantly delays hydrocarbon auto-ignition, providing new insights into oil pre-ignition. Pre-chamber fueling with H2 reduces cyclic variability and enables ultra-lean operation, outperforming natural gas. This […]

The Digest’s 2025 Multi-Slide Guide to Alcohol Combustion in CI Engines

July 24, 2025 | Jim Lane

This presentation highlights ethanol/methanol for off-road decarbonization, despite their low ignitability for compression ignition. Pilot injections are key, creating a flame kernel to ignite main sprays. Ethers improve ignitability but reduce efficiency in single-fuel blends, lowering NOx. Methanol port injection struggles with vaporization, causing liquid entry and weak combustion. Notably, active pre-chamber jets achieve diesel-like […]

The Digest’s 2025 Multi-Slide Guide to DNS/LES and Modeling of SAF Flame Stabilization

July 23, 2025 | Jim Lane

High-fidelity simulations are crucial for Sustainable Aviation Fuel (SAF) combustion modeling. DNS of aero-combustors shows premixed flames dominate heat release, with edge flames re-igniting extinction regions via coupled deflagration and ignition. Crucially, edge flames cause turbulent kinetic energy back-scatter, missed by current LES models. New constrained Deep Neural Network models significantly improve multi-modal combustion predictions. […]

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