99/00371 Studies on reforming natural gas with carbon dioxide to prepare synthesis gas. XI. Effect of La2O3 promoter on NI/a-M2O3 catalysts

1999 ◽  
Vol 40 (1) ◽  
pp. 36
Author(s):  
Gert W. Basson ◽  
P. W. E. Blom

The world’s energy consumption is increasing constantly due to the growing population of the world. The increasing energy consumption has a negative effect on the fossil fuel reserves of the world. Hydrogen has the potential to provide energy for all our needs by making use of fossil fuel such as natural gas and nuclear-based electricity. Hydrogen can be produced by reforming methane with carbon dioxide as the oxidizing agent. Hydrogen can be produced in a Plasma-arc reforming unit making use of the heat energy generated by a 500 MWt Pebble Bed Modular Reactor (PBMR). The reaction in the unit takes place stoichiometrically in the absence of a catalyst. Steam can be added to the feed stream together with the Carbon Dioxide, which make it possible to control the H2/CO ratio in the synthesis gas between 1/1 and 3/1. This ratio of H2/CO in the synthesis gas is suitable to be used as feed gas to almost any chemical and petrochemical process. To increase the hydrogen production further, the Water-Gas Shift Reaction can be applied. A techno-economic analysis was performed on the non-catalytic plasma-arc reforming process. The capital cost of the plant is estimated at $463 million for the production of 1132 million Nm3/year of hydrogen. The production cost of hydrogen is in the order of $12.81 per GJ depending on the natural gas cost and the price of electricity.


1999 ◽  
Vol 147 (1-2) ◽  
pp. 47-54 ◽  
Author(s):  
Guolin Xu ◽  
Keying Shi ◽  
Ying Gao ◽  
Hengyong Xu ◽  
Yongde Wei

2014 ◽  
Vol 548-549 ◽  
pp. 316-320 ◽  
Author(s):  
Wahab Maqbool ◽  
Sang Jin Park ◽  
Euy Soo Lee

Steam methane reforming has been a conventional process to produce synthesis gas which is an important feedstock to many chemicals. However, for gas to liquid (GTL) applications this reforming process is not suitable as it produces synthesis gas with very high hydrogen to carbon monoxide ratio than required by the Fischer Tropsch synthesis in GTL line. In this work, a GTL process is designed in which synthesis gas is produced by steam reforming from a natural gas feedstock containing relatively substantial carbon dioxide contents in it. Synthesis gas composition is tailored by tail gas recycling from the Fischer Tropsch products. Process simulation and optimization is performed on Aspen HYSYS to produce synthesis gas with hydrogen to carbon monoxide ratio of 2 which is desired in GTL technology.


2013 ◽  
Vol 451 ◽  
pp. 43-49 ◽  
Author(s):  
Hyun Ook Seo ◽  
Jong Ki Sim ◽  
Kwang-Dae Kim ◽  
Young Dok Kim ◽  
Dong Chan Lim ◽  
...  

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