Modelling and experimental study of hydrate formation kinetics of natural gas‐water‐surfactant system in a multi‐tube bubble column reactor

2019 ◽  
Vol 97 (10) ◽  
pp. 2765-2776 ◽  
Author(s):  
Ya′nan Xin ◽  
Jianwen Zhang ◽  
Yingwei He ◽  
Chuansheng Wang
Keyword(s):  
Experimental Study ◽  
Natural Gas ◽  
Bubble Column ◽  
Hydrate Formation ◽  
Bubble Column Reactor ◽  
Column Reactor ◽  
Surfactant System ◽  
Formation Kinetics ◽  
Kinetics Of

Ozonation kinetics of winery wastewater in a pilot-scale bubble column reactor

2009 ◽  
Vol 43 (6) ◽  
pp. 1523-1532 ◽  
Author(s):  
Marco S. Lucas ◽  
José A. Peres ◽  
Bing Yan Lan ◽  
Gianluca Li Puma
Keyword(s):  
Bubble Column ◽  
Pilot Scale ◽  
Bubble Column Reactor ◽  
Column Reactor ◽  
Winery Wastewater ◽  
Kinetics Of

scholarly journals Lowering the Carbon Footprint of Steel Production Using Hydrogen Direct Reduction of Iron Ore and Molten Metal Methane Pyrolysis

2019 ◽  
Author(s):  
Abhinav Bhaskar ◽  
Mohsen Assadi ◽  
Homam Nikpey Somehsaraei
Keyword(s):  
Natural Gas ◽  
Carbon Footprint ◽  
Iron Ore ◽  
Bubble Column ◽  
Direct Reduction ◽  
Steel Production ◽  
Bubble Column Reactor ◽  
Column Reactor ◽  
Reduction Of Iron ◽  
Direct Reduction Of Iron

Reducing emissions from the iron and steel industry is essential to achieve the Paris climate goals. A new system to reduce the carbon footprint of steel production is proposed in this article by coupling hydrogen direct reduction of iron ore (H-DRI) and natural gas pyrolysis on liquid metal surface inside a bubble column reactor. If grid electricity from EU is used, the emissions would be 435 kg CO2/tls without considering methane leakage from the extraction, storage and transport of natural gas. Solid carbon, produced as a by-product of natural gas decomposition, finds applications in many industrial sectors, including as a replacement for coal in coke ovens. Specific energy consumption (SEC) of the proposed system is approximately 6.3 MWh per ton of liquid steel(tls). It is higher than other competing technologies, 3.48 MWh/tls for water electrolysis based DRI, and, 4.3-4.5 MWh/tls for natural gas based DRI and blast furnace-basic oxygen furnace (BF-BOF) respectively. Utilization of large quantities of natural gas, where the carbon remains unused, is the major reason for high SEC. Preliminary analysis of the system revealed that it has the potential to compete with existing technologies to produce CO2 free steel, if renewable electricity is used. Further studies on the kinetics of the bubble column reactor, H-DRI shaft furnace, design and sizing of components, along with building of industrial prototypes are required to improve the understanding of the system performance.

Ozonation kinetics of cork-processing water in a bubble column reactor

2008 ◽  
Vol 42 (10-11) ◽  
pp. 2473-2482 ◽  
Author(s):  
Bing Yan Lan ◽  
Rinat Nigmatullin ◽  
Gianluca Li Puma
Keyword(s):  
Bubble Column ◽  
Bubble Column Reactor ◽  
Column Reactor ◽  
Processing Water ◽  
Kinetics Of
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