Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Richard E. Tischer"'
Publikováno v:
Industrial & Engineering Chemistry Product Research and Development. 24:206-213
An assessment was made of the performance and deactivation characteristics of catalysts used in the hydroprocessing reactor at the Wilsonville Advanced Coal Liquefaction Test Facility. Spent catalyst samples were collected periodically during 3 test
Publikováno v:
Industrial & Engineering Chemistry Research. 26:1865-1869
Catalytic hydroprocessing of coal-derived residuum is typically performed in the presence of a distillate solvent to minimize experimental problems associated with high-boiling materials; however, this limits the amount of useful information that can
Publikováno v:
Applied Catalysis. 21:313-328
Synthesis gas was reacted over different compositions of iron-manganese Fischer-Tropsch catalysts in a slurry reactor. The reactor operates in a back-mixed mode with a continuous flow of feed gas through the catalyst suspended in the liquid medium. F
Publikováno v:
Fuel Processing Technology. 11:273-287
An investigation was conducted to determine the activities of various coal-liquefaction residua during catalytic hydrotreatment. Residua produced at low- and high-severity coal-liquefaction conditions were employed, as well as a nondeashed residuum p
Publikováno v:
Industrial & Engineering Chemistry Process Design and Development. 21:477-485
Catalyst deactivation is a major problem in coal liquefaction processes that utilize supported-metal catalysts, such as the H-Coal process. The effect of catalyst diameter on the rate of deactivation was investigated. Data for various catalysts were
Publikováno v:
Journal of Catalysis. 89:334-347
Laser Raman spectroscopy, X-ray photoelectron spectroscopy, low-energy ion-scattering spectroscopy, and X-ray diffraction have been used to characterize a series of Coz.sbnd;Mo Al 2 O 3 catalysts containing 15 wt% MoO 3 and 0 to 8 wt% CoO in their ox
Autor:
Richard E. Tischer
Publikováno v:
Journal of Catalysis. 72:255-265
Methods for preparing bimodal alumina supports and molybdena/alumina catalysts by extrusion techniques were examined. The methods used to produce bimodal pore structure in the extrudates were (1) partial peptization, (2) coextrusion of salt/boehmite
Publikováno v:
Industrial & Engineering Chemistry Product Research and Development. 22:411-420
Etude de l'hydrotraitement sur des catalyseurs Ni−Mo/Al 2 O 3 d'un melange a 50% d'un extrait de charbon par le procede SRC-I et d'huile de creosote en vue de determiner l'influence des proprietes du catalyseur sur le degre d'hydrogenation, de desu
Publikováno v:
Industrial & Engineering Chemistry Research. 26:422-426
The catalysts contained 3 wt % NiO and 19.8 wt % MoO/sub 3/. They were tested in a 50/50 mixture of coal-liquid residuum and process-derived solvent at 390/sup 0/C and 2000 psig in a batch autoclave test. The addition of phosphorus has a significant
Publikováno v:
Journal of Catalysis. 95:406-413
A novel method that can produce large-pore unimodal or bimodal alumina extradates was developed. Since the method used to produce the larger-diameter pores does not involve a steaming or sintering process, the resultant supports have high surface are