Carbon capture and storage (CCS) is expected to play a key role achieve deep emission cuts in the energy intensive industry sector. The implementation of carbon comes with considerable investment cost significant effect on plants operating cost, which both depend site conditions, mainly due differences flue gas flow composition depending availability excess heat that can be utilized power unit. In this study we map costs required install operate amine-based post-combustion CO2 at all...

Combined heat and power (CHP) plants that provide district heating (DH) are underutilized due to seasonal variations in demand. This work provides an assessment of the techno-economic potential integrating sorbent-based direct air capture (DAC) into CHP DH systems, expand business portfolio plant increase its utilization. The proposed integrated system utilizes existing infrastructure at 100°C, high-temperature pumps upgrade available waste from a post-combustion carbon (PCC) unit, so as...

The cultivation and processing of microalgal biomass is resource- energy-intensive, negatively affecting the sustainability profitability producing bulk commodities, limiting this platform to manufacture relatively small quantities high-value compounds. A biorefinery approach where all fractions are valorized might improve case for lower-value products. However, these systems still likely operate very close thresholds energy balance, with wide-ranging environmental societal impacts. It thus...

Electrification of industrial processes is one the frequently discussed options to reduce greenhouse gas emissions from energy-intensive industries. This paper presents a bottom-up framework assess process electrification for plants in terms and energy costs. The based upon pinch analysis methods, accounts site-specific conditions, including effects on heat recovery potential overall mass balances. Furthermore, interactions between site background system are considered scenarios introduced...

Optimizing semiconductor devices for solar energy conversion requires an explicit control of the recombination photogenerated electron–hole pairs. Here we show how charge carriers can be controlled in thin films by surface patterning with oxide nanodisks. The mechanism relies on formation dipole-like electric fields at interface that, depending field direction, attract or repel minority from underneath disks. rate through choice material and coverage We provide proof-of-principle...

In Sweden, over 50% of building heating requirements are covered by district heating. Approximately 8% the heat supply to systems comes from excess industrial processes. Many studies indicate that there is a potential substantially increase this share, and policies promoting energy efficiency greenhouse gas emissions reduction provide incentives do this. Quantifying medium long-term economic carbon footprint benefits such investments difficult because background system against which new...

As fossil-reliant industries turn to sustainable biomass for energy and material supply, the competition biogenic carbon is expected intensify. Using process level balance models, this paper shows how capture of residual CO 2 in conjunction with either permanent storage (CCS) or biofuel production (CCU) benefits fourteen largely residue-based pathways. With a few noteworthy exceptions, most pathways have low utilization efficiencies (30–40%) without CCS/U. CCS can double these numbers...

Increased utilization of industrial excess heat (or waste heat) can reduce primary energy use and thereby contribute to reaching climate targets. To estimate the potential availability heat, it is necessary capture significant heterogeneity sector. This requires development methodologies based on case study assessments individual plants, adopting a systematic approach consistent assumptions. Since recovery for power generation or off-site delivery competes with internal on-site fuel savings,...

This paper presents a real industrial example in which the steam utility network of refinery is modelled order to evaluate potential Heat Integration retrofits proposed for site.A refinery, typically, has flexibility optimize operating strategy system depending on operation main processes.This few examples retrofit measures from case study large oil refinery.In expected changes fuel and electricity imports after implementation retrofits, model been developed.The tested validated with steady...

Abstract The implementation of a biorefinery concept through the integration new biomass conversion processes with existing industrial plants offers potential for high overall biomass‐to‐product efficiencies and cost‐effective production. To reach this potential, degree process is essential. This implies that there will be strong interconnections between different processing units in original plant process, thereby risk operability difficulties. Consequently, need to consider operational...

Retrofitting of industrial heat recovery systems can contribute significantly to meeting energy efficiency targets for plants. One issue consider when screening retrofit design proposals is that must be able handle variations, e.g., in inlet temperatures or capacity flow rates, such a way operational are reached. Consequently, there need systematic retrofitting methodologies applicable multi-period exchanger networks (HENs). In this study, framework was developed achieve flexible and...

The pulp and paper industry has a high potential to contribute negative emissions through carbon capture storage (CCS) applied existing processes. However, there is need investigate how CCS solutions also can be combined with implementation of other emerging technologies in mills. This investigates the integration novel calcination process two kraft mills evaluates its combination CO 2 from plant. alternative uses electric gas-plasma technology steam slaking allows replacing conventional...

This paper investigates how non-industrial agrarian traditions and practices are reworked recontextualized in a contemporary context. Explorative its nature, the uses depth interviews with practitioners eastern Sweden, several of whom engaged work to keep past alive, discuss concept revitalization can bear on sustainability. Traditional revived as an alternative industrialized agriculture, having bearing resilient cultivation systems well social relations. They seen means increasing food...

The pulp and paper industry, with its wood biomass feedstock, has promising opportunities to become a key player in the biorefinery arena.A successful implementation of pathways requires optimization energy system through process integration, can lead both increased diversified revenues as well r eduction global CO 2 emissions.This presents results from pinch analysis partly integrated Kraft mill.The objective was identify potential for efficiency improvements, focusing on possibilities save...

The pulp and paper industry has an important role in the industrial transition towards net zero or negative emissions, given its renewable biomass-based feedstock energy supply. In particular, mills have large existing sources of biogenic CO 2, with a high potential to contribute carbon dioxide removal through capture storage (CCS). To effectively navigate anticipated changes markets, there is need for better understanding how different technology pathways interact one another, instance,...