Additive effect of tyre constituents on the hydrogenolyses of coal liquefaction residue

Suzuki, Motoyuki; Tamaru, Takashi; Hirano, Koji; Mashimo, Kiyoshi

doi:10.1016/j.fuel.2005.05.016

Cited by 19 publications

(10 citation statements)

References 10 publications

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“…The gas chromatographic analyses of gaseous components (CH 4 , C 2 H 6 , C 3 H 8 , C 4 H 10 , CO, CO 2 ) evolved after coal liquefaction were performed on a Shimadzu GC-9A instrument equipped with a thermal conductivity detector and dual-column molecular sieve (7 m, Shimadzu) and Porapak N (2 m, Waters) [9,14,15,[17][18][19][20][21][22].…”

Section: Discussionmentioning

confidence: 99%

“…W N was calculated from the proportion of naphthalene in the oil constituent determined by the gas chromatographic analysis, which was performed on a Shimadzu GC-17A instrument equipped with a 30 m Â 0.25 mm TC-1 (GL Sciences Inc.) capillary column and a hydrogen flame ionization detector [15]. The 1 H NMR spectra of the heavy oil constituents obtained from coal liquefaction were measured as a CDCl 3 solution with a JEOL JNM-EX90A (90 MHz, FT mode) spectrometer [14,15,17,18,23,24].…”

Section: Discussionmentioning

confidence: 99%

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Effects of hydrogen transfer by exchanged cobalt upon liquefaction of low rank coal

Suzuki

Ohura

Endoh

et al. 2012

Fuel

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Effects of hydrogen transfer by exchanged cobalt upon liquefaction of low rank coal

Suzuki

Ohura

Endoh

et al. 2012

Fuel

Self Cite

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“…THFIS began to have a significant weight loss in the high temperature of 450 , during which was always slower. Motoyuki [5] suggested in his study that synergistic effect of co-pyrolysis for DCLR with the tire could greatly improve the conversion rate and yields of oil and asphaltene.LI Jun's [6,7] studies had shown that some low-temperature volatile components obtained in heavy oil and asphaltene cannot volatilize at low temperature, while disintegrated at higher temperature.…”

Section: Introductionmentioning

confidence: 99%

Effect of Extracted Compositions of Liquefaction Residue on the Structure and Properties of the Formed-coke

Song

2016

MATEC Web Conf.

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Abstract. The purpose of this paper is to study the effect of extracted compositions of the de-ash liquefaction residue (D-DCLR) on pyrolysis products yields, compressive strength and composition of the formed-coke, which was prepared by co-pyrolysis of the low metamorphic pulverized coal and D-DCLR. The scanning electron microscope (SEM) and the Fourier Transform Infrared (FT-IR) were used to characterize the morphology and functional group of the formed-coke, respectively. The results showed that the extracted compositions of D-DCLR were heavy oil (HS), asphaltene (A), pre-asphaltene (PA) and tetrahydrofuran isolusion (THFIS), whose contents were 5.10%, 40.90%, 14.4%, 39.60%, respectively. During the pyrolysis process, HS was the main source of tar, and HS, A as well as PA were conducive to improve gas yields. The THFIS helped to improve the yield of the formed-coke up to 89.5%, corresponding to the compressive strength was only 147.7N/ball for the coke. A and PA were the key factors affecting the compressive strength and surface structure of the formed-coke. The compressive strength of coke could be up to 728.0N/ball with adding D-DCLR, which reduced by 50% after the removal of A and PA. The FT-IR analysis showed that the types of surface functional groups of the formed-coke were remained the same after co-pyrolysis, but the absorption peak intensity of each functional group was changed.

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“…Preasphaltenes, asphaltenes and heavy distillate oil account for 40% to 60% in organic matter, and have a hydrogenation or hydrogenolysis potential, as reported in some articles [6][7][8][9][10][11][12][13][14]. The minerals from raw coal and the catalyst used in the hydroliquefaction process with their large content in inorganic matter are beneficial for optimizing CHL technology if CHLR is recycled as a CHL co-reactant, so it is absolutely necessary to study the liquefaction behavior of CHLR and its kinetics before designing any CHLR recycle process.…”

Section: Introductionmentioning

confidence: 99%

A Study on the Hydrotreating of Coal Hydroliquefaction Residue and its Kinetics

Huang

Zhang

et al. 2010

Energies

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Hydro-conversion of coal hydroliquefaction residue obtained from a 6t/day pilot plant of Shenhua Group in Shanghai was carried out under the hydrotreating condition. The coal hydroliquefaction residue and its product were extracted in sequence with n-hexane, toluene and tetrahydrofuran in a Soxhlet apparatus. The n-hexane soluble fractions increased with the increase of reaction temperature and time. Its amount increased from 14.14% to a maximum of 40.86% under the conditions of 470 °C and 30 min, which meant that moderate extension of coal residence time in the coal hydroliquefaction reactor is beneficial to the increase of oil yield. A 4-lumped kinetic model of coal hydroliquefaction residue hydro-conversion was performed using solubility-based lumped fractions. In the model, the tetrahydrofuran insoluble fractions were classified into two parts: easily reactive part and unreactive part. The kinetic parameters were estimated by a fourth-order Runge-Kutta method and a nonlinear least squares method, and the apparent activation energies were calculated according to the Arrhenius Equation. A large quantity of total catalyst consisting of remained liquefaction catalyst, part of the mineral from raw coal and additive Fe-based catalyst could considerably reduce the apparent activation energy of hydro-conversion for the toluene insoluble/tetrahydrofuran insoluble fractions to 36.79 kJ•mol -1 . The calculated values of the model coincided well with the experimental values.

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Additive effect of tyre constituents on the hydrogenolyses of coal liquefaction residue

Cited by 19 publications

References 10 publications

Effects of hydrogen transfer by exchanged cobalt upon liquefaction of low rank coal

Effects of hydrogen transfer by exchanged cobalt upon liquefaction of low rank coal

Effect of Extracted Compositions of Liquefaction Residue on the Structure and Properties of the Formed-coke

A Study on the Hydrotreating of Coal Hydroliquefaction Residue and its Kinetics

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