Direct Coal Liquefaction Using Bis(Dihydrobis(1-Pyrazolyl)Borate)Nickel (II) As a Catalyst

Pong Kau Yuen

Direct Coal Liquefaction Using Bis(Dihydrobis(1-Pyrazolyl)Borate)Nickel (II) As a Catalyst

Texas Southern University

Research output: Thesis › Doctoral Thesis

Abstract

The direct coal liquefaction of Illinois Number Six River King coal using bis(dihydrobis(l-pyrazolyl)borate)nickel (II) as a catalyst in SRC II (a distillate at 240-450°C) was evaluated at times of 15 minutes. Each run was carried out in a 300 ml magnedrive autoclave reactor under an initial hydrogen pressure of 900-1200 psig and/or at 425-475°C. In case of different hydrogen pressures, the tetrahydrofuran (THF) and cyclohexane conversions increased with increased hydrogen pressure. At the two temperatures of 425°C and 475°C the cyclohexane conversion increased with the increased temperature but the THF conversion decreased. The effects of different solvents and heating-rate of short residence times would require for further study.

Original language	American English
Qualification	Ph.D.
Supervisors/Advisors	Wilson, Bobby L., Advisor, External person Stubblefield, G.T., Advisor, External person Sapp, John B., Advisor, External person
State	Published - May 11 1987

Disciplines

Chemistry

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Direct Coal Liquefaction Using Bis(Dihydrobis(1-Pyrazolyl)Borate)Final published version, 55.7 MBLicense: CC BY

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title = "Direct Coal Liquefaction Using Bis(Dihydrobis(1-Pyrazolyl)Borate)Nickel (II) As a Catalyst",

abstract = " The direct coal liquefaction of Illinois Number Six River King coal using bis(dihydrobis(l-pyrazolyl)borate)nickel (II) as a catalyst in SRC II (a distillate at 240-450°C) was evaluated at times of 15 minutes. Each run was carried out in a 300 ml magnedrive autoclave reactor under an initial hydrogen pressure of 900-1200 psig and/or at 425-475°C. In case of different hydrogen pressures, the tetrahydrofuran (THF) and cyclohexane conversions increased with increased hydrogen pressure. At the two temperatures of 425°C and 475°C the cyclohexane conversion increased with the increased temperature but the THF conversion decreased. The effects of different solvents and heating-rate of short residence times would require for further study.",

author = "Yuen, {Pong Kau}",

year = "1987",

month = may,

day = "11",

language = "American English",

}

TY - BOOK

T1 - Direct Coal Liquefaction Using Bis(Dihydrobis(1-Pyrazolyl)Borate)Nickel (II) As a Catalyst

AU - Yuen, Pong Kau

PY - 1987/5/11

Y1 - 1987/5/11

N2 - The direct coal liquefaction of Illinois Number Six River King coal using bis(dihydrobis(l-pyrazolyl)borate)nickel (II) as a catalyst in SRC II (a distillate at 240-450°C) was evaluated at times of 15 minutes. Each run was carried out in a 300 ml magnedrive autoclave reactor under an initial hydrogen pressure of 900-1200 psig and/or at 425-475°C. In case of different hydrogen pressures, the tetrahydrofuran (THF) and cyclohexane conversions increased with increased hydrogen pressure. At the two temperatures of 425°C and 475°C the cyclohexane conversion increased with the increased temperature but the THF conversion decreased. The effects of different solvents and heating-rate of short residence times would require for further study.

AB - The direct coal liquefaction of Illinois Number Six River King coal using bis(dihydrobis(l-pyrazolyl)borate)nickel (II) as a catalyst in SRC II (a distillate at 240-450°C) was evaluated at times of 15 minutes. Each run was carried out in a 300 ml magnedrive autoclave reactor under an initial hydrogen pressure of 900-1200 psig and/or at 425-475°C. In case of different hydrogen pressures, the tetrahydrofuran (THF) and cyclohexane conversions increased with increased hydrogen pressure. At the two temperatures of 425°C and 475°C the cyclohexane conversion increased with the increased temperature but the THF conversion decreased. The effects of different solvents and heating-rate of short residence times would require for further study.

UR - https://digitalscholarship.tsu.edu/pre-2016_theses/242

M3 - Doctoral Thesis

ER -

Direct Coal Liquefaction Using Bis(Dihydrobis(1-Pyrazolyl)Borate)Nickel (II) As a Catalyst

Abstract

Disciplines

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