Thermal coupling between crude distillation and delayed coking units

Pleșu, Valentin; Bumbac, Gheorghe; Iancu, Petrica; Ivanescu, Ion; Popescu, Dan C.

doi:10.1016/s1359-4311(03)00167-4

Cited by 13 publications

(6 citation statements)

References 3 publications

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“…Large energy savings can be achieved by means of heat integration and most studies have been conducted on parts of the refinery process (Plesu et al, 2003;Valino et al, 2008;Bulasara et al, 2009). Brown (1999) reported that typical energy savings from total site analyses are in the 20-30% range, and the results are limited to 10-15% as long as economic feasibility is considered.…”

Section: Energy Efficiency Opportunitiesmentioning

confidence: 99%

Assessment of Co2 Emission Mitigation for a Brazilian Oil Refinery

Chan

Sugiyama

Borges

2016

Braz. J. Chem. Eng.

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-Currently the oil refining sector is responsible for approximately 5% of the total Brazilian energy related CO 2 emissions. Possibilities to reduce CO 2 emissions and related costs at the largest Brazilian refinery have been estimated. The abatement costs related to energy saving options are negative, meaning that feasibility exists without specific income due to emission reductions. The assessment shows that short-term mitigation options, i.e., fuel substitution and energy efficiency measures, could reduce CO 2 emissions by 6% of the total current refinery emissions. It is further shown that carbon capture and storage offers the greatest potential for more significant emission reductions in the longer term (up to 43%), but costs in the range of 64 to162 US$/t CO 2 , depending on the CO 2 emission source (regenerators of FCC units or hydrogen production units) and the CO 2 capture technology considered (oxyfuel combustion or post-combustion). Effects of uncertainties in key parameters on abatement costs are also evaluated via sensitivity analysis.

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Section: Energy Efficiency Opportunitiesmentioning

confidence: 99%

Assessment of Co2 Emission Mitigation for a Brazilian Oil Refinery

Chan

Sugiyama

Borges

2016

Braz. J. Chem. Eng.

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“…Various HYSYS and UniSim Design applications have been reported, e.g. design and simulation of a reactor for the chlorination of acetone in gaseous phase,41 a study of thermal coupling between crude distillation and delayed coking units,42 simulation and optimisation of extractive distillation with water as solvent43 and assessment of different biodiesel production processes 44…”

Section: Available Software Toolsmentioning

confidence: 99%

Software tools overview: process integration, modelling and optimisation for energy saving and pollution reduction

Lam

Klemeš

Kravanja

2011

Asia-Pacific J Chem Eng

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This paper provides an overview of software tools based on long experience and applications in the area of process integration, modelling and optimisation. The first part reviews the current design practice and the development of supporting software tools. Those are categorised as: (1) process integration and retrofit analysis tools, (2) general mathematical modelling suites with optimisation libraries, (3) flowsheeting simulation and (4) graph-based process optimisation tools. The second part covers an assessment of tools which enable the generation of new sustainable alternatives to adapt to the future needs. They deal with waste, environment, energy consumption, resources depletion and production cost constrains. The emphasis of the sustainable process design tools is largely on the evaluation of process viability under sustainable economic conditions, synthesis of sustainable process and supply chain process maintenance and life cycle analysis. Major software tools development and the potential of the research-based tools for sustainable process design task are overviewed in the concluding part. 

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“…A CDP and a delayed coking plant (DCP) were proposed as good candidates for thermal coupling by employing utility streams. An MPS and a low-pressure steam (LPS) were produced by the CDP to decrease steam importation, whereas the HEN of the DCP was debottlenecked to transfer the LPS to the CDP . A HEN retrofit for a CDP was proposed based on the pinch design method and the integration of the free hot streams available in a DCP .…”

Section: Introductionmentioning

confidence: 99%

“…An MPS and a low-pressure steam (LPS) were produced by the CDP to decrease steam importation, whereas the HEN of the DCP was debottlenecked to transfer the LPS to the CDP. 33 A HEN retrofit for a CDP was proposed based on the pinch design method and the integration of the free hot streams available in a DCP. 34 Kuboski 35 proposed that the feed temperature of the DCP was of relevance to both the CDP and DCP for evaluating the overall costs and utility consumption when considering grass-root designs and based on a pinch analysis approach in the conceptual design.…”

Section: Introductionmentioning

confidence: 99%

Hot Discharges/Feeds between Plants To Combine Utility Streams for Heat Integration

Zhang

Luo

Chen

2012

Ind. Eng. Chem. Res.

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A sharp increase in worldwide energy requirements has forced people to exploit novel energy conservation technologies and new alternative energies. Heat integration, as a method of saving energy, is proposed in this paper in the form of integrating multiple hot discharges/feeds between plants and utility streams to reduce utility requirements and increase steam production for the total site. T–Q graphic methods are proposed to coordinate the temperatures of multiple hot discharges/feeds between plants and the steam production. The grand composite curve (GCC), the composite curve of the streams employed for hot discharges/feeds, and the curve of steam generation are combined into the T–Q diagram to obtain an insight into the interrelationship between these streams. A bilevel mixed integer linear programming (MILP) framework is presented to minimize the total hot and cold utilities of the up and down plants and to maximize the steam generation in the total site. The first level of the programming framework is formulated to target the utility requirements, and the second level of the programming framework is formulated to maximize the steam production. Two examples are investigated to demonstrate the performance of the proposed method, and the results show a decrease in the total hot and cold utilities of the up and down plants and also indicate an increase in steam production.

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Thermal coupling between crude distillation and delayed coking units

Cited by 13 publications

References 3 publications

Assessment of Co2 Emission Mitigation for a Brazilian Oil Refinery

Assessment of Co2 Emission Mitigation for a Brazilian Oil Refinery

Software tools overview: process integration, modelling and optimisation for energy saving and pollution reduction

Hot Discharges/Feeds between Plants To Combine Utility Streams for Heat Integration

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