The Effect of H2S on Hydrogen and Carbon Black Production from Sour Natural Gas

2011 ◽  
Vol 110-116 ◽  
pp. 2131-2138
Author(s):  
Mostafa Tazimi ◽  
Seyyed Mohammad Javadi ◽  
S. Sobhan Nabavi
Keyword(s):  
Natural Gas ◽  
Carbon Black ◽  
Chemical Reactions ◽  
Flow Reactor ◽  
Influencing Factor ◽  
Axial Flow ◽  
Small Scale ◽  
Reactor Temperature ◽  
Carbon Black Production ◽  
Sour Gas

Hydrogen and carbon black production via thermal decomposition of natural gas have been achieved using a carbon black furnace. Direct heat transfer from inert hot gases (argon) introduced into sour gas. The carbon black furnace is a small-scale axial flow reactor. There are 3 main chemical reactions through which carbon black is produced. Finally results indicate that the most influencing factor over these chemical reactions and CH4 and H2S conversions is reactor temperature.

The Effect of H2S on Production of Carbon Black From Sub-Quality Natural Gas

2008 ◽  
Author(s):  
M. Moghiman ◽  
M. Javadi ◽  
M. H. Raad ◽  
N. Hosseini ◽  
M. Soleimani
Keyword(s):  
Natural Gas ◽  
Carbon Black ◽  
Flow Rate ◽  
Soot Formation ◽  
Mass Density ◽  
Mixture Fraction ◽  
Reaction Model ◽  
Particle Number Density ◽  
Reactor Temperature ◽  
Carbon Black Production

The objective of this paper is computational investigation of the carbon black production through thermal decomposition of waste gases containing CH4 and H2S, without requiring a H2S separation process. The chemical reaction model, which involves solid carbon, sulfur compounds and precursor species for formation carbon black, based on an assumed Probability Density Function (PDF) parameterized by the mean and variance of mixture fraction and β-PDF shape. The soot formation is modeled by using the soot particle number density and the mass density based on acetylene concentrations. The effects of feedstock mass flow rate and reactor temperature on carbon black, soot, CO, S2, SO2, COS and CS2 formation are investigated. The results show that the major factor influencing CH4 and H2S conversions is reactor temperature. The results reveal that at any temperature, H2S conversion is less than that of CH4. For temperatures higher than 1100°K, the reactor CH4 conversion reaches 100%. At temperatures below 1300°K, H2S conversion is too low and usually less than 5%. For temperatures higher than 1300°K, H2S conversion increases sharply with temperature and the major products of the process are S2 and SO2 while COS and CS2 are minor products. The results also show that the production of carbon black from sub-quality natural gas, process involving the formation of carbon monoxide which is occurring in parallel, play a very significant role. For lower values of feedstock flow rate, CH4 mostly burns to CO and consequently, the production of carbon black is low.

Numerical Analysis of Carbon Black Production from Sub‐Quality Natural Gas

2008 ◽  
Author(s):  
M. Moghiman ◽  
M. Javadi ◽  
M. H. Ghodsirad ◽  
N. Hosseini ◽  
M. Soleimani
Keyword(s):  
Numerical Analysis ◽  
Natural Gas ◽  
Carbon Black ◽  
Carbon Black Production

Phase changes in the lining of reactors used for carbon black production

Refractories ◽  
1965 ◽  
Vol 6 (9-10) ◽  
pp. 452-457 ◽  
Author(s):  
Z. D. Zhukova ◽  
N. V. Pitak ◽  
V. G. �ntin
Keyword(s):  
Carbon Black ◽  
Phase Changes ◽  
Carbon Black Production

Design and optimization of small-scale methanol production from sour natural gas by integrating reforming with hydrogenation

2020 ◽  
Vol 45 (59) ◽  
pp. 34483-34493
Author(s):  
Hua Liu ◽  
Jinghui Qu ◽  
Ming Pan ◽  
Bingjian Zhang ◽  
Qinglin Chen ◽  
...  
Keyword(s):  
Natural Gas ◽  
Small Scale ◽  
Methanol Production ◽  
Design And Optimization

4643880 Apparatus and process for carbon black production

Carbon ◽  
1988 ◽  
Vol 26 (2) ◽  
pp. II
Author(s):  
William R King ◽  
C Jack Hart
Keyword(s):  
Carbon Black ◽  
Carbon Black Production

ECONOMIC ANALYSIS OF MIXED-REFRIGERANT CYCLE AND NITROGEN EXPANDER CYCLE IN SMALL SCALE NATURAL GAS LIQUEFIER

2008 ◽  
Author(s):  
Q. S. Yin ◽  
H. Y. Li ◽  
Q. H. Fan ◽  
L. X. Jia ◽  
J. G. Weisend ◽  
...  
Keyword(s):  
Natural Gas ◽  
Economic Analysis ◽  
Small Scale ◽  
Natural Gas Liquefier ◽  
Expander Cycle
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