Fischer–Tropsch-synthesis with nitrogen-rich syngas

Jess, Andreas; Popp, Rüdiger; Hedden, Kurt

doi:10.1016/s0926-860x(99)00152-0

Cited by 104 publications

(34 citation statements)

References 5 publications

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“…There are several studies [14][15][16][17][18] that have demonstrated not only the possibility but also the evident advantages in using nitrogen-rich syngas in Fischer-Tropsch-synthesis [14,15], in production of dimethyl ether and even methanol [18]. Authors of [14,15] believe that the use of nitrogen-rich syngas (50 vol.%) could be an alternative process to the classical ones using nitrogen-free syngas because the investment costs are probably lower: syngas is produced by partial oxidation with air, which eliminates the need for an air separation plant, and the process with nitrogen-rich syngas does not utilize a recycle loop and a recycle compressor.…”

Section: Small-scale Conversion Of Apg Into Nitrogen-rich Syngas As Amentioning

confidence: 99%

“…Authors of [14,15] believe that the use of nitrogen-rich syngas (50 vol.%) could be an alternative process to the classical ones using nitrogen-free syngas because the investment costs are probably lower: syngas is produced by partial oxidation with air, which eliminates the need for an air separation plant, and the process with nitrogen-rich syngas does not utilize a recycle loop and a recycle compressor. It was shown that nitrogen only dilutes syngas and has no influence on the kinetics, if the partial pressures of carbon monoxide and hydrogen are kept constant [14,19].…”

Section: Small-scale Conversion Of Apg Into Nitrogen-rich Syngas As Amentioning

confidence: 99%

“…The concept of the low-cost F-T-process based on nitrogen-rich syngas was investigated on a semi-technical scale at the Engler-Bunte-Institute of the University of Karlsruhe [14,15]. The semi-technical F-T-plant has used the F-T-unit with three single-tube fixed bed reactors in series with iron catalyst.…”

Section: Small-scale Conversion Of Apg Into Nitrogen-rich Syngas As Amentioning

confidence: 99%

“…7. Typical product-distribution of F-T-synthesis obtained with nitrogen-rich syngas (about 50% of N 2 ) at the semi-technical F-T-unit [14].…”

Section: Small-scale Conversion Of Apg Into Nitrogen-rich Syngas As Amentioning

confidence: 99%

See 3 more Smart Citations

New Potentialities for Utilization of Associated Petroleum Gases in Power Generation and Chemicals Production

Arutyunov

Савченко

Седов

et al. 2017

Eurasian Chem. Tech. J.

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New possibilities for the utilization of associated petroleum gases (APG) and monetization of small-scale and remote Natural Gas resources by power generation and chemicals production are considered and tested. One possibility is the oxycracking of APG. This technology allows selective transformation of heavier hydrocarbons that have low octane (methane) numbers and inclined to soot and tar formation, into lighter compounds with higher octane numbers, thus producing gas suitable to feed different types of power engines. Another possibility is the small-scale conversion of APG to syngas to produce more easily transportable and more valuable chemicals or liquid fuels via well-known Fischer-Tropsch process or catalytic synthesis of methanol. For this purpose we have suggested principally new technology for natural gases conversion into syngas, based on the use of 3D (volumetric) matrixes. It allows the relative simple and very compact non-catalytic reformers to be designed for small-scale gas-to liquid (GTL) technologies. Their main advantages are autothermal character of the process without any need in additional heating or power supply, absence of catalyst that allows processing hydrocarbon gases of practically any composition, including APG, without additional pretreatment, very high specific volume capacity, at any rate 10 times higher than that of steam reforming, and simplicity in construction and operation.

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Section: Small-scale Conversion Of Apg Into Nitrogen-rich Syngas As Amentioning

confidence: 99%

Section: Small-scale Conversion Of Apg Into Nitrogen-rich Syngas As Amentioning

confidence: 99%

Section: Small-scale Conversion Of Apg Into Nitrogen-rich Syngas As Amentioning

confidence: 99%

“…7. Typical product-distribution of F-T-synthesis obtained with nitrogen-rich syngas (about 50% of N 2 ) at the semi-technical F-T-unit [14].…”

Section: Small-scale Conversion Of Apg Into Nitrogen-rich Syngas As Amentioning

confidence: 99%

See 2 more Smart Citations

New Potentialities for Utilization of Associated Petroleum Gases in Power Generation and Chemicals Production

Arutyunov

Савченко

Седов

et al. 2017

Eurasian Chem. Tech. J.

View full text Add to dashboard Cite

show abstract

“…This creates a new problem that whether the nitrogen present in the syngas exerts a negative impact on the subsequent synthesis processes. In fact, the dimethyl ether synthesis [26,27] and Fischer-Tropsch synthesis [28,29] with nitrogen-containing syngas have been reported. Our earlier studies have achieved N90% CO per-pass conversion in the dimethyl ether synthesis from the nitrogen-containing syngas derived from air partial oxidation of methane, indicating that the negative impact of inert nitrogen could be largely reduced by avoiding feedstock recycle [27].…”

Section: Effect Of Co 2 /Air Ratio On the Reactionmentioning

confidence: 99%

06/00044 A novel process for converting coalmine-drained methane gas to syngas over nickel-magnesia solid solution catalysts

2006

Fuel and Energy Abstracts

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A novel process is developed in this paper for utilizing the coalmine-drained methane gas that is usually vented straight into the atmosphere in most coalmines worldwide. It is expected that low-cost syngas can be produced by the combined air partial oxidation and CO 2 reforming of methane, because this process utilizes directly the methane, air, and carbon dioxide in the coalmine-drained gas without going through the separation step. For this purpose, a nickel-magnesia solid solution catalyst was prepared and its catalytic performance for the proposed process was investigated. It was found that calcination temperature has significant influence on the catalytic performance due to the different extent of solid solution formation in the catalysts. A uniform nickel-magnesia solid solution catalyst exhibits higher stability than the catalysts in which NiO has not completely formed solid solution with MgO. Its catalytic activity and selectivity remain stable during 120 h of reaction. The product H 2 /CO ratio is mainly dependent on the feed gas composition. By changing CO 2 /air ratio of the feed gases, syngas with a H 2 /CO ratio between 1 and 1.9 can be obtained. The influences of reaction temperature and nickel loading on the catalytic performance were also investigated. D

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Experimental and simulation study of the temperature distribution in a bench‐scale fixed bed Fischer–Tropsch reactor

Shen

et al. 2021

AIChE Journal

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The temperature distribution in a bench‐scale fixed bed Fischer–Tropsch reactor using Co‐based catalyst was investigated under conditions of 2 MPa and 458 K at various syngas partial pressures and space velocities. The single‐tube reactor had a diameter of 0.05 m, which is representative of the diameters used in industrial applications. With a special designed temperature measurement, the detailed temperature distribution in a bench‐scale reactor was reported for the first time. The changes of maximum temperature in the bed and hot spot region were discussed at different N2 flow rate and gas hourly space velocity. A 2D pseudo‐homogeneous fixed bed reactor model was developed using ANSYS Fluent. A position‐dependent heat‐transfer coefficient, which considered more accurate in temperature prediction, was applied. The model was validated against both the reaction results and the measured temperatures. The inferred properties within the reactor were analyzed to give insight as to how to increase the reactor production capacity.

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Fischer–Tropsch-synthesis with nitrogen-rich syngas

Cited by 104 publications

References 5 publications

New Potentialities for Utilization of Associated Petroleum Gases in Power Generation and Chemicals Production

New Potentialities for Utilization of Associated Petroleum Gases in Power Generation and Chemicals Production

06/00044 A novel process for converting coalmine-drained methane gas to syngas over nickel-magnesia solid solution catalysts

Experimental and simulation study of the temperature distribution in a bench‐scale fixed bed Fischer–Tropsch reactor

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