Gasoline from Coal via DME with Electricity Co-production and CO2 Capture

Liu, Guangjian; Larson, Eric

doi:10.1016/j.egypro.2014.11.773

Cited by 16 publications

(5 citation statements)

References 13 publications

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“…The recovered syngas was used to generate electricity in a power generation unit, which could be used inside the plant. This is beneficial as the production of DME and power by the once‐through (OT) approach is a feasible alternative to conventional DME production by the recycle approach (RC) . Furthermore, the extra heat available from the process could also be used for power generation.…”

Section: Resultsmentioning

confidence: 99%

“…This is beneficial as the production of DMEa nd power by the once-through (OT) approach is afeasible alternative to conventional DME productionb yt he recycle approach (RC). [24] Furthermore, the extra heat available from the process could also be used for power generation. Thep rocessp arameters described above were adopted in the proposed optimized process to achieveaDME yield of 380 kg h À1 with an et electricity generationo f0 .53 MW if 1000 kg h À1 of biomass was fed to the system.…”

Section: Process Optimizationmentioning

confidence: 99%

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Synthesis of Bio‐Dimethyl Ether Based on Carbon Dioxide‐Enhanced Gasification of Biomass: Process Simulation Using Aspen Plus

et al. 2016

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9Process simulation of a single-step synthesis of DME based on CO 2 -enhanced gasification of 10 rice straw was conducted using Aspen Plus TM . The process consists of gasification unit, heat 11 recovery unit, gas purification unit, single-step DME synthesis, and DME separation unit. In the 12 simulation, highly pure DME was produced by the control of CO 2 concentration in syngas to a 13 very low level prior to synthesis. A gasification system efficiency of 36.7% and CO 2 emission of 14 1.31 kg/kg of DME were achieved. Bio-DME production based on CO 2 -enhanced gasification of 15 biomass was found to be more cost-effective as it required 19.6% less biomass than that of DME 16 production based on conventional biomass gasification. The performance and environmental 17 benefits of the proposed process could be further improved by the utilization of unreacted gases 18 and the handling of CO 2 generated via incorporating poly-generation concept or carbon storage, 19 which could also potentially improve process economics. 20

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Section: Resultsmentioning

confidence: 99%

Section: Process Optimizationmentioning

confidence: 99%

Synthesis of Bio‐Dimethyl Ether Based on Carbon Dioxide‐Enhanced Gasification of Biomass: Process Simulation Using Aspen Plus

et al. 2016

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“…It is also possible to recycle CO2 owing to the low flue gas volumes of the power generation unit compared to traditional power plants [6]- [8]. The energy efficiency and economic feasibility of such a complex technology is much higher than that of individual productions [8]- [10].…”

Section: Introductionmentioning

confidence: 99%

Clean Coal Technologies for Electricity and Synthetic Liquid Fuel Production for Distributed Generation

Tyurina

Mednikov

Жарков

2020

Environmental and Climate Technologies

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The paper presents energy technology installations for combined production of methanol and electricity for distributed generation. The technical and economic study is based on mathematical modeling using a system of computer-aided construction of programs and optimization with the models. The results of the effect of fuel composition on methanol and electricity production are presented. The competitiveness of the obtained methanol is assessed. The studies were carried out for various electricity and coal costs. The thermal efficiency of such installations is more than 60 %. At present methanol produced at energy technology installations is competitive with expensive diesel fuel delivered from other areas.

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“…There are currently no DME production facilities operational in India, and the work is aimed at contributing to an existing body of work [28,29,143,150,[166][167][168], which is geographically focused in China and the USA.…”

Section: Discussionmentioning

confidence: 99%

“…CH4 or N2) in the system. This configuration is referred to as the recycle configuration (RC) in a number of prior publications [29,149,150], and an alternative configuration, in which none of the unconverted syngas is recycled, is referred to as the once-through (OT) configuration. For a similar feedstock quantity, the OT configuration produces more power and less fuel, and previous studies [28] indicated that this was the most economical approach to producing DME under the prevailing circumstances in…”

Section: Study Areamentioning

confidence: 99%

Energy transitions in developing countries and the role of alternative liquid fuels in reducing energy poverty: exploring the use of domestically produced dimethyl ether (DME) to augment the use of imported liquefied petroleum gas (LPG) as a clean cooking fuel in India

Grové¹

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The lack of access to electricity and clean cooking fuels is commonly referred to as energy poverty. In 2014, approximately 819 million people in India relied on solid fuels (including wood, crop residue, dung and coal) for cooking, the use of which is claimed to contribute to premature death caused by indoor air pollution, deforestation and gender inequality. In the interest of improved health and wellbeing, the Indian Government is, therefore, promoting a transition to the use of Liquefied Petroleum Gas (LPG) as a cleaner cooking fuel. Dimethyl ether (DME) is a LPG compatible synthetic fuel, and the primary purpose of this thesis is to understand the use of domestically produced DME to offset a growing Indian LPG import requirement.The thesis starts by exploring the links between alternative liquid fuels production and use, human wellbeing, energy poverty reduction and sustainable development (Objective 1).The analysis finds that the proportional share of income used to purchase fuel is larger in developing countries when compared with richer, more developed countries, and that extended periods of high oil prices may exacerbate poverty in developing countries which are dependent on oil imports. In addition to reducing this vulnerability, there is a strong (potential) synergy between the production and use of alternative liquid fuels and several of the United Nations sustainable development goals. These include the provision of affordable and clean energy, promoting economic growth, climate action, reducing inequality and improving health and wellbeing. Affordability is a key driver in the adoption (and continued use) of cleaner cooking fuels globally. Therefore, to be considered viable, the cost of domestically produced DME would have to be equal or lower than the cost of imported LPG. In this context, the remainder of the thesis is devoted to the technoeconomic evaluation of producing DME from three different feedstocks, each offering a different greenhouse gas emissions intensity.The first evaluation (Objective 2) is based on the conversion of low-grade Indian coal in Jharkhand, where 18% of households used coal as a cooking fuel in 2011. Based on using a similar (energy equivalent) quantity of coal, it was found that producing DME (with associated excess electricity) would likely require oil prices greater than $73 per barrel to be cost competitive with imported LPG.iii Additionally, and due to higher overall process and cooking energy efficiency, this approach could result in 36% less coal being consumed when compared with direct use of the coal for cooking and as a means of producing an equivalent amount of electricity.India's metropolitan cities generate large quantities of Municipal Solid Waste (MSW), 90% of which is disposed of onto unsanitary landfills, creating major environmental and health concerns. This second evaluation (Objective 3) therefore considers the techno-economic merits of reducing some of these impacts by converting a portion of the MSW generated in Kolkata into DME. Results su...

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Gasoline from Coal via DME with Electricity Co-production and CO2 Capture

Cited by 16 publications

References 13 publications

Synthesis of Bio‐Dimethyl Ether Based on Carbon Dioxide‐Enhanced Gasification of Biomass: Process Simulation Using Aspen Plus

Synthesis of Bio‐Dimethyl Ether Based on Carbon Dioxide‐Enhanced Gasification of Biomass: Process Simulation Using Aspen Plus

Clean Coal Technologies for Electricity and Synthetic Liquid Fuel Production for Distributed Generation

Energy transitions in developing countries and the role of alternative liquid fuels in reducing energy poverty: exploring the use of domestically produced dimethyl ether (DME) to augment the use of imported liquefied petroleum gas (LPG) as a clean cooking fuel in India

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