Zobrazeno 1 - 10
of 30
pro vyhledávání: '"K R P M Rao"'
Publikováno v:
Applied Catalysis A: General. 161:263-279
This investigation measured the impact of the liquid starting medium on syngas (H 2 +CO) conversion via the Fischer-Tropsch (F-T) synthesis in a 11 continuous stirred tank reactor (CSTR). The experiments were conducted with a low-wax producing iron c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::17a52f609bd6e9d6db4c82bba02c0c13
https://doi.org/10.1016/s0926-860x(97)00077-x
https://doi.org/10.1016/s0926-860x(97)00077-x
Autor:
Gerald P. Huffman, Burtron H. Davis, Robert J. Gormley, F. E. Huggins, § and Robert J. O'Brien, K. R. P. M. Rao
Publikováno v:
Energy & Fuels. 10:546-551
Mossbauer data indicate that activating an iron Fischer−Tropsch catalyst containing Cu, K, and kaolin with syngas for 24 h at 270 °C and 1.14 MPa produces a material that has about 60% of the iron in the form of Fe3O4 and the remainder as a mixtur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3112ac89af3768f32e1b6a20fc3121de
https://doi.org/10.1021/ef9501962
https://doi.org/10.1021/ef9501962
Autor:
K. R. P. M. Rao, Dragomir B. Bukur, Gerald P. Huffman, Dingjun Wang, Chiuping Li, Michael P. Rosynek, K. Okabe
Publikováno v:
Journal of Catalysis. 155:353-365
A commercial promoted precipitated iron catalyst (100 Fe/5 Cu/4.2 K/25 SiO2 by weight) was characterized after different pretreatment conditions and after Fischer-Tropsch (FT) synthesis in a fixed bed reactor. The BET-N2 surface area and pore volume
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4768509b6f0f935b6e13fa22a37d6a2c
https://doi.org/10.1006/jcat.1995.1217
https://doi.org/10.1006/jcat.1995.1217
Publikováno v:
Applied Catalysis A: General. 126:85-113
A doubly promoted precipitated iron catalyst (100 Fe/0.3 Cu/0.8 K by mass) was characterized after different pretreatment conditions and after Fischer-Tropsch (FT) synthesis in a fixed bed reactor. The BET surface area of the catalyst decreased marke
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::db5e76f5a179c830305a63ed592bdf86
https://doi.org/10.1016/0926-860x(95)00020-8
https://doi.org/10.1016/0926-860x(95)00020-8
Autor:
Gerald P. Huffman, Dragomir B. Bukur, Vikram Mahajan, V. U. S. Rao, K. R. P. M. Rao, Frank E. Huggins
Publikováno v:
Hyperfine Interactions. 93:1751-1754
Mossbauer spectroscopy studies of precipitated Fischer-Tropsch (FT) iron catalysts, viz. 100 Fe/5 Cu/4.2 K/x SiO2, wherex=0,8, 16, 24, 25, 40, or 100, have shown that reduction of the oxide precursor in CO gives rise to χ-carbide Fe5C2 whose amount
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::74e40940c4f3f79f9909b6d30d139563
https://doi.org/10.1007/bf02072940
https://doi.org/10.1007/bf02072940
Autor:
Gerald P. Huffman, V. U. S. Rao, Frank E. Huggins, K. R. P. M. Rao, Liguang Xu, B. Ganguly, Vikram Mahajan, Robert J. O'Brien, B. H. Davis
Publikováno v:
Hyperfine Interactions. 93:1755-1758
Mossbauer spectroscopy was used to investigate the effect of heating the Fischer-Tropsch catalyst 100 Fe/5 Cu/4.2 K/24 SiO2 in two different atmospheres while ramping the temperature of the catalyst from room temperature to 280 °C in 5.5 h prior to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2b6989a23a9445d0b6158625b79b377c
https://doi.org/10.1007/bf02072941
https://doi.org/10.1007/bf02072941
Publikováno v:
Hyperfine Interactions. 93:1745-1749
Mossbauer spectroscopy studies of iron catalysts from a Fischer-Tropsch (FT) Pilot Plant run at different time-on-stream periods were carried out. Magnetite Fe3O4 was found to be active for the water-gas-shift (WGS) reaction which accompanies the FT
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b008fe18ca34a62694ea523aa0ac664d
https://doi.org/10.1007/bf02072939
https://doi.org/10.1007/bf02072939
Autor:
N. Shah, Fulong Lu, Jianmin Zhao, M. Mehdi Taghiei, Zhen Feng, Gerald P. Huffman, K. R. P. M. Rao, Frank E. Huggins, B. Ganguly
Publikováno v:
Energy & Fuels. 7:285-296
Mossbauer spectroscopy, XAFS spectroscopy, and a number of complementary techniques have been used to investigate the structure and size dispersion of a variety of ultrafine iron-based DCL catalysts. In the as-prepared state, iron that was chemically
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::690055c5b28b9536464193bd3c5ce6de
https://doi.org/10.1021/ef00038a020
https://doi.org/10.1021/ef00038a020
Publikováno v:
Philosophical Magazine Letters. 63:315-318
Conversion electron Mossbauer spectroscopy has been used to study radiation damage by 100 keV protons in stainless steel SS 302. For low dose the defect component is a quadrupole doublet with positive isomer shift. For higher dose, 5 x 1018 protons c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e49c1f113b62d9f9a624b455ece025c1
https://doi.org/10.1080/09500839108206374
https://doi.org/10.1080/09500839108206374
Autor:
K R P M Rao
Publikováno v:
Pramana. 34:L369-L375
A quasicrystal of Al-Fe with a stoichiometric composition very close to a crystalline phase is shown to transform to the crystalline phase with simple thermal cycling from 300 K through 78 K and 300 K.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a9536f6d8fc7250fda0c5099f519f5a2
https://doi.org/10.1007/bf02845872
https://doi.org/10.1007/bf02845872