Investigation of an industrial nickel - chromium catalyst with heat treatment in different gaseous media

1969 ◽  
Vol 5 (10) ◽  
pp. 334-338
Author(s):  
A. A. Bondareva ◽  
A. M. Alekseev ◽  
R. V. Chesnokova
Keyword(s):  
Heat Treatment ◽  
Chromium Catalyst ◽  
Nickel Chromium ◽  
Gaseous Media

scholarly journals Propane Pre-Reforming into Methane-Rich Gas over Ni Catalyst: Experiment and Kinetics Elucidation via Genetic Algorithm

Energies ◽  
2020 ◽  
Vol 13 (13) ◽  
pp. 3393 ◽  
Author(s):  
Sergey I. Uskov ◽  
Dmitriy I. Potemkin ◽  
Leniza V. Enikeeva ◽  
Pavel V. Snytnikov ◽  
Irek M. Gubaydullin ◽  
...  
Keyword(s):  
Genetic Algorithm ◽  
Molar Ratio ◽  
Ni Catalyst ◽  
Propane Conversion ◽  
Reaction Conditions ◽  
Experimental Conditions ◽  
Chromium Catalyst ◽  
Nickel Chromium ◽  
Wide Range ◽  
The Given

Pre-reforming of propane was studied over an industrial nickel-chromium catalyst under pressures of 1 and 5 bar, at a low steam to carbon molar ratio of 1, in the temperature range of 220–380 °C and at flow rates of 4000 and 12,000 h−1. It was shown that propane conversion proceeded more efficiently at low pressure (1 atm) and temperatures above 350 °C. A genetic algorithm was applied to search for kinetic parameters better fitting experimental results in such a wide range of experimental conditions. Power law and Langmuir–Hinshelwood kinetics were considered. It was shown that only Langmuir–Hinshelwood type kinetics correctly described the experimental data and could be used to simulate the process of propane pre-reforming and predict propane conversion under the given reaction conditions. The significance of Langmuir–Hinshelwood kinetics increases under high pressure and temperatures below 350 °C.

Stability of nickel/chromium catalyst in hydrogenation of aromatic hydrocarbons present in hydrotreated and nonhydrotreated liquid paraffins

1977 ◽  
Vol 13 (7) ◽  
pp. 485-486
Author(s):  
G. A. Ermidzina ◽  
N. Kh. Rogovskaya ◽  
V. A. Kupriyanov ◽  
S. N. Khadzhiev ◽  
N. V. �ngel'
Keyword(s):  
Aromatic Hydrocarbons ◽  
Chromium Catalyst ◽  
Nickel Chromium ◽  
Hydrogenation Of Aromatic Hydrocarbons

Effects of Heat Treatment on Mechanical Properties of two Nickel-Chromium-Based Casting Alloys

1972 ◽  
Vol 51 (6) ◽  
pp. 1537-1545 ◽  
Author(s):  
Simon Civjan ◽  
Eugene F. Huget ◽  
Gerald D. Godfrey ◽  
Heiner Lichtenberger ◽  
William A. Frank
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Casting Alloys ◽  
Nickel Chromium

Effect of heat treatment and alloying on the equicohesion temperature of nickel-chromium alloys

1972 ◽  
Vol 5 (2) ◽  
pp. 180-183
Author(s):  
I. N. Kidin ◽  
I. V. Doronin ◽  
V. V. Medvedev
Keyword(s):  
Heat Treatment ◽  
Nickel Chromium ◽  
Chromium Alloys

ChemInform Abstract: A Novel Nickel-Chromium Catalyst System for Cyclization via Intramolecular Carbametalation.

ChemInform ◽  
1987 ◽  
Vol 18 (49) ◽  
Author(s):  
B. M. TROST ◽  
J. M. TOUR
Keyword(s):  
Catalyst System ◽  
Chromium Catalyst ◽  
Nickel Chromium

ALLVAC 718

Alloy Digest ◽  
1964 ◽  
Vol 13 (4) ◽  
Keyword(s):  
Heat Treatment ◽  
Corrosion Resistance ◽  
High Temperature ◽  
Iron Alloy ◽  
High Strength ◽  
Heat Treating ◽  
Age Hardening ◽  
Nickel Chromium ◽  
Temperature Performance ◽  
Hardening Heat Treatment

Abstract Allvac 718 is a nickel-chromium-iron alloy that responds to an age-hardening heat treatment. It is recommended for parts requiring high strength and oxidation resistance up to about 1300 F and particularly for such parts that require welding. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: Ni-90. Producer or source: Allvac Inc..

HPM X-750

Alloy Digest ◽  
2006 ◽  
Vol 55 (6) ◽  
Keyword(s):  
Heat Treatment ◽  
High Temperature ◽  
Physical Properties ◽  
Elevated Temperatures ◽  
Alloy Composition ◽  
Heat Treating ◽  
Chromium Alloy ◽  
Nickel Chromium ◽  
Temperature Performance ◽  
Wide Range

Abstract HPM X-750 is a precipitation-hardenable nickel-chromium alloy that is well suited for a wide range of corrosive and oxidizing environments where strength must be maintained to elevated temperatures. The alloy composition provides a product that performs well at elevated temperatures up to 700 deg C (1300 deg F). The strength can be increased by heat treatment. This datasheet provides information on composition, physical properties, elasticity, and tensile properties. It also includes information on high temperature performance as well as forming, heat treating, and joining. Filing Code: Ni-638. Producer or source: Hamilton Precision Metals.

RA-330

Alloy Digest ◽  
1970 ◽  
Vol 19 (8) ◽  
Keyword(s):  
Heat Treatment ◽  
Corrosion Resistance ◽  
High Temperature ◽  
Heat Treating ◽  
The Other ◽  
Chromium Alloy ◽  
Nickel Chromium ◽  
Temperature Performance ◽  
High Nickel ◽  
Resistance To Heat

Abstract RA-330 is an austenitic, non-magnetic, corrosion and heat resisting, high nickel-chromium alloy steel. It does not respond to any heat treatment for hardening. It has a greater resistance to heat and thermal shock than the other grades of austenitic steel. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as creep. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SS-11. Producer or source: Rolled Alloys Inc.. Originally published October 1953, revised August 1970.

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