New technology for the comprehensive utilization of Chinese oil shale resources

Jiang, Xiumin; Han, Xiangxin; Cui, Zhigang

doi:10.1016/j.energy.2006.05.001

Cited by 179 publications

(83 citation statements)

References 15 publications

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“…The decreasing availability of petroleum, one of the conventional energy sources, has put great pressure on today's energy supplies [1]. Motivated by the considerable high-viscosity or "heavy" oil reserves, more attention has been paid to steam injection techniques for increasing the reservoir temperature and lowering the viscosity of "heavy" oil [2].…”

Section: Introductionmentioning

confidence: 99%

A novel analytical transient heat-conduction time function for heat transfer in steam injection wells considering the wellbore heat capacity

Cheng

Huang

et al. 2011

Energy

128

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Section: Introductionmentioning

confidence: 99%

A novel analytical transient heat-conduction time function for heat transfer in steam injection wells considering the wellbore heat capacity

Cheng

Huang

et al. 2011

Energy

128

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“…Relatively large reserves of oil shales are in a number of countries that have developed into major importers of conventional oil and natural gas, such as China and the United States (Gwyn 2001, Jiang et al 2007a. So, should we take the road of unconventional fossil fuels and methane hydrates?…”

Section: Type Of Fuelmentioning

confidence: 99%

“…On the other hand, their way of production implies that the input of energy to produce a certain amount of synthetic crude oil is higher than in the case of current conventional oil (Patel 2007, Task Force on Strategic Unconventional Fuels 2007, Attanasi 2008, Gagnon 2008, Parks 2008. For instance, for making crude oil from coal or oil shale, about 50% of the energy present in coal or oil shale is needed (Steynberg and Nel 2004, van Dyk et al 2006, Jiang et al 2007a. Thus, the ratio between energy output and source-tofuel energy input (energy payback) or source-to-fuel energy efficiency for synfuels is lower than for current conventional oil (see also Table 1).…”

Section: Unconventional Fossil Fuels (Also Called: Synfuels)mentioning

confidence: 99%

Fuels for the future

Reijnders

2009

Journal of Integrative Environmental Sciences

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There are unconventional fuels that may serve as near term major replacements for conventional mineral oil and natural gas. These include fuels from oil shale and bitumen, liquid fuels from coal, methane from methane hydrates, biofuels and the secondary fuel hydrogen. Here, these fuels will be reviewed as to their presumable stocks and life cycle wastes, emissions and inputs of natural resources. The unconventional fuels are usually characterized by a relatively poor source-toburner energy efficiency when compared with current conventional mineral oil and gas. Apart from some varieties of hydrogen and biofuel, their life cycles are characterized by relatively large water inputs, emissions, and wastes. The unconventional fuels shale oil, bituminous oil, coal liquids, and methane from methane hydrates are based on natural resources which are practically finite. This does not hold for biofuels, but the sustainable supply thereof is severely limited when large numbers of people also have to be fed. In view of the problems associated with unconventional fuels, there is a case to consider fuel-less replacements for many fuel applications.

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“…Previous studies have shown that the granularity of oil shale affects its combustion characteristics to a certain extent, with the combustion performance increasing with decreasing particle size. [6][7][8] Overall, smaller oil shale particles are favorable to both pyrolysis and combustion.…”

Section: Introductionmentioning

confidence: 99%

Separation of <6 mm oil shale using a compound dry separator

et al. 2017

Separation Science and Technology

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A large amount of fine granular materials (<6 mm) are produced during the mining of oil shale. The combustion characteristics of oil shale improve with decreasing size of these materials, for which reason fine-grain oil shale has a high utility value. However, fine oil shale also contains a significant amount of inorganic mineral impurities which can be reduced by physical separation to improve the oil quality. Based on an analysis of the physical properties of oil shale, this paper proposes a compound dry separation process for the cleaning of <6 mm oil shale grains. The effects of the vibration intensity, air velocity, and back angle of the employed separator on the separation results and oil content of the cleaned oil shale were systematically analyzed. Under the optimal vibrational conditions defined by a vibration intensity of 25.76 (amplitude = 4.0 mm, frequency = 40 Hz), air velocity of 0.66 m/s, and back angle of 45°, the yield comprised 35.8% concentrate and 64.2% tailings, with corresponding oil contents of 10.02% and 0.85%, respectively. The probable error of the highest intensity of segregation achieved was 0.155. The proposed compound dry separation of oil shale particles of up to 6 mm was found to be more efficient compared with conventional methods, and the separated fine grade material can be comprehensively utilized by further pyrolysis treatment. ARTICLE HISTORY

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New technology for the comprehensive utilization of Chinese oil shale resources

Cited by 179 publications

References 15 publications

A novel analytical transient heat-conduction time function for heat transfer in steam injection wells considering the wellbore heat capacity

A novel analytical transient heat-conduction time function for heat transfer in steam injection wells considering the wellbore heat capacity

Fuels for the future

Separation of <6 mm oil shale using a compound dry separator

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