Safety and techno-economic analysis of ethylene technologies

Thiruvenkataswamy, Preetha; Eljack, Fadwa; Roy, Nitin; Mannan, M. Sam; El‐Halwagi, Mahmoud M.

doi:10.1016/j.jlp.2015.11.019

Cited by 60 publications

(44 citation statements)

References 19 publications

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“…The predominant industrial process for ethylene production is thermal cracking of ethane and naphtha feedstocks in the presence of steam, which is also known as steam cracking or thermal pyrolysis. Naturalgas condensate feeds (ethane, propane, and n-butane) accounted for nearly 90% of the fresh feed for U.S. ethylene plants in 2015 due to the increased shale-gas production since 2009 (Thiruvenkataswamy 2015).…”

Section: Ethylene Production Methods and Market Overview 11mentioning

confidence: 99%

“…In this study, the ENDP process was scaled from laboratory measurements to a hypothetical plant scale and simulated using AspenPlus to obtain material and energy balances and then conduct economic analyses. The results are compared with those of a traditional reference steam-cracking process (Thiruvenkataswamy 2015). The cases analyzed in this study are list in Table 2.…”

Section: Cases Considered 21mentioning

confidence: 99%

“…The main difference between the two cases is the single-pass ethylene yield inside the ENDP reactor, which is 25.7% for the current case compared to 48.5% for the future case. The chosen ethylene yield of 48.5% for the ENDP future case is according to data of a steamcracking reference process (Thiruvenkataswamy 2015). Both ENDP cases were modeled in AspenPlus according to the conversions and yield percentages obtained from laboratory data for Case 1 and projected for Case 2.…”

Section: Cases Considered 21mentioning

confidence: 99%

“…The ENDP future predicted case assumes that technological improvements including catalyst selectivity, reactor design and system performance will be made in order to achieve the projected ethylene single pass yield. The chosen ethylene yield of 48.5% for the ENDP future case is according to data of a steam-cracking reference process (Thiruvenkataswamy 2015). Both ENDP cases were modeled in AspenPlus according to the conversions and yield percentages obtained from lab data for Case 1 and projected for Case 2.…”

mentioning

confidence: 99%

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Techno-Economic Analysis on an Electrochemical Non-oxidative Deprotonation Process for Ethylene Production from Ethane

Ding

Knighton

et al. 2019

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This report has been prepared as part of a study for Light Water Reactor Sustainability (LWRS) program to evaluate the technical and economic feasibility of integrating a light-water reactor (LWR) nuclear power plant (NPP) with an electrochemical, nonoxidative deprotonation (ENDP) process for production of ethylene from ethane. Process synthesis and modeling were utilized to assess the economic feasibility. ENDP is a novel, early Technical Readiness Level (TRL)~1-2 process for producing ethylene and hydrogen via the electrochemical dehydrogenation of ethane. It is currently being demonstrated at the laboratory scale at Idaho National Laboratory (INL) (Ding et al. 2018). Ethane is a plentiful feedstock that is separated as a condensate during natural-gas processing. The U.S. LWR NPP fleet is facing increasing financial challenges due to the expansion of solar and wind power, as well as the low price of natural gas. Alternative strategies are being sought to increase the revenues of NPPs and to find new applications for NPP heat and electricity during periods of overgeneration. NPPs enable solar and wind generating-capacity buildout by providing carbon-free baseload capacity needed for times when solar and wind are unable to generate. Overgeneration occurs during periods when excess electricity is generated due to high solar-or wind-energy output. During these times, NPPs are either paying to curtail wind and solar power or are flexibly operating by turning down their reactor power and generation output. Flexible operations can have impacts on NPP fuel cycles and maintenance while also decreasing revenue. An NPP could alternatively provide carbon-free energy for process-heat steam, cooling water for cooling duties, and house-load electricity to industrial processes, such as ENDP, as an alternative revenue-generating source. In conventional chemical processes, energy and utilities are generated by utilizing fossil fuels, such as coal, fuel oils, and natural gas, resulting in significant emissions of carbon dioxide greenhouse gases (GHGs). Ethylene production via the current industry-standard process of steam cracking, for example, is energy intensive and uses large furnaces burning large amounts of natural gas to "crack" feedstocks from ethane and naphtha to heavy gasoils into lighter olefinic molecules (such as ethylene, propylene, etc). Steam cracking is a mature and optimized industrial process, but remains both capital and energy intensive. Thus, the steam-cracking process is the subject of frequent process-intensification studies to reduce the process-energy demand (Gao et al. 2019). The primary purpose of this report is to present a scaled modeling and technoeconomic analysis (TEA) of the novel ENDP process for producing ethylene and hydrogen from ethane. This TEA provides the related chemical process and economic analysis for the production of ethylene and hydrogen via the ENDP process and compares it with conventional industrial steam cracking of ethane for ethylene production. The modeled ENDP process is co...

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Section: Ethylene Production Methods and Market Overview 11mentioning

confidence: 99%

Section: Cases Considered 21mentioning

confidence: 99%

Section: Cases Considered 21mentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

Techno-Economic Analysis on an Electrochemical Non-oxidative Deprotonation Process for Ethylene Production from Ethane

Ding

Knighton

et al. 2019

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“…& Gas-to-liquid (GTL) that reforms methane to syngas which later undergoes Fischer-Tropsch reaction to produce liquid transportation fuels (Bao et al 2010;Gabriel et al 2014) & Ethane cracking to produce ethylene through the following primary and side reactions (Kamrava et al 2015;Thiruvenkataswamy et al 2016 & Methanol-to-propylene (MTP) in which methanol is first dehydrated to dimethyl ether that is further reacted to produce propylene (Jasper and El-Halwagi 2015). The overall primary reaction for the process is the following:…”

Section: Atomic Targeting Approachmentioning

confidence: 99%

A Shortcut Approach to the Multi-scale Atomic Targeting and Design of C–H–O Symbiosis Networks

El‐Halwagi

2017

Process Integr Optim Sustain

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Eco-industrial parks "EIPs" are aimed at integrating natural resources among different participating plants. A particularly important category of EIPs involves hydrocarbon processes where intermediate species and environmental discharges may be exchanged and/or transformed to other chemical species so as to reduce the purchase of fresh raw materials and the disposal of wastes. The problem of synthesizing carbonhydrogen-oxygen symbiosis networks (CHOSYNs) has been recently introduced along with a mathematical programming approach for the optimal design (Noureldin and El-Halwagi 2015). In this paper, a shortcut approach is developed to solve the problem of CHOSYN synthesis. Multi-scale atomic targeting is used to establish benchmarks for the carbon, hydrogen, and oxygen atoms, for the external chemical species to be purchased and discharged, and for the chemical reactions transforming the involved compounds into value-added feedstocks, intermediates, and products. Because of the algebraic nature of the devised approach, it can be readily used by process engineers and can also be used as a starting point for the mathematical programming techniques. A case study is solved in details to illustrate the implementation of the proposed approach.

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Techno‐EconomicAnalysis of Monetizing Shale Gas to Butadiene

Ozinan

El‐Halwagi

2018

Natural Gas Processing From Midstream to Downstream

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Safety and techno-economic analysis of ethylene technologies

Cited by 60 publications

References 19 publications

Techno-Economic Analysis on an Electrochemical Non-oxidative Deprotonation Process for Ethylene Production from Ethane

Techno-Economic Analysis on an Electrochemical Non-oxidative Deprotonation Process for Ethylene Production from Ethane

A Shortcut Approach to the Multi-scale Atomic Targeting and Design of C–H–O Symbiosis Networks

Techno‐EconomicAnalysis of Monetizing Shale Gas to Butadiene

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