Thermochemical Conversion of CH4to C2-Hydrocarbons and H2over SnO2/Fe3O4/SiO2in Methane−Water Co-Feed System

2001 ◽  
Vol 15 (2) ◽  
pp. 463-469 ◽  
Author(s):  
T. Shimizu ◽  
Y. Kitayama ◽  
T. Kodama
Keyword(s):  
Thermochemical Conversion ◽  
Feed System ◽  
C2 Hydrocarbons

A two-step thermochemical conversion of CH4 to CO, H2 and C2-hydrocarbons below 1173 K

1999 ◽  
Vol 09 (PR3) ◽  
pp. Pr3-337-Pr3-342 ◽  
Author(s):  
A. Aoki ◽  
T. Shimizu ◽  
Y. Kitayama ◽  
T. Kodama
Keyword(s):  
Thermochemical Conversion ◽  
C2 Hydrocarbons

scholarly journals Investigation into the Flow Properties of Coarse Solid Fuels for Use in Industrial Feed Systems

2015 ◽  
Vol 2015 ◽  
pp. 1-12 ◽  
Author(s):  
James M. Craven ◽  
Jim Swithenbank ◽  
Vida N. Sharifi
Keyword(s):  
Energy Savings ◽  
Thermochemical Conversion ◽  
Solid Fuels ◽  
Flow Properties ◽  
Wood Pellets ◽  
Feed System ◽  
Bulk Solid ◽  
Anthracite Coal ◽  
Common Causes ◽  
Key Issues

Material feeding and handling systems have been cited as one of the most common causes of process downtime where thermochemical conversion processes are concerned. New and emerging fuels come in a variety of forms, and if such fuels are to be deployed widely it is imperative that material feeding and handling systems are designed appropriately. This study proposes an approach for designing material feeding and handling systems for use with coarse solid fuels. The data obtained from this study indicates particle size to be one of the key issues affecting the flowability of bulk solids further to the uniformity in particle shape. Coarse bulk solid samples were shown to flow more freely than their milled and pulverised counterparts, generating higher degrees of flowability. The results from this study were also applied to a new feed system used for feeding solid fuels to high pressure processes named the Hydraulic Lock Hopper. In this study the Hydraulic Lock Hopper demonstrated the feeding of wood pellets, torrefied spruce pellets, and ground anthracite coal grains against a pressure of 25 barg in two modes of operation. Energy savings compared to conventional lock hopper systems were recorded in the region of 80%.

Gas to Liquid Chemical Feed System Conversion at Seven Wastewater Treatment Plants

2000 ◽  
Vol 2000 (2) ◽  
pp. 495-507
Author(s):  
J. Andrew Landrum ◽  
David M. Murbach ◽  
Bruce Husselbee ◽  
Mardane McLemore
Keyword(s):  
Wastewater Treatment ◽  
Wastewater Treatment Plants ◽  
Feed System ◽  
Liquid Chemical ◽  
Gas To Liquid

scholarly journals Chemical Recycling of WEEE Plastics—Production of High Purity Monocyclic Aromatic Chemicals

Processes ◽  
2021 ◽  
Vol 9 (3) ◽  
pp. 530
Author(s):  
Tobias Rieger ◽  
Jessen C. Oey ◽  
Volodymyr Palchyk ◽  
Alexander Hofmann ◽  
Matthias Franke ◽  
...  
Keyword(s):  
High Purity ◽  
Fractional Distillation ◽  
Gas Chromatography Mass Spectrometry ◽  
Thermochemical Conversion ◽  
Chemical Recycling ◽  
Pyrolysis Oil ◽  
X Ray ◽  
Benzene Toluene ◽  
Halogen Content ◽  
Methyl Styrene

More than 200 kg real waste electrical and electronic equipment (WEEE) shredder residues from a German dismantling plant were treated at 650 °C in a demonstration scale thermochemical conversion plant. The focus within this work was the generation, purification, and analysis of pyrolysis oil. Subsequent filtration and fractional distillation were combined to yield basic chemicals in high purity. By means of fractional distillation, pure monocyclic aromatic fractions containing benzene, toluene, ethylbenzene, and xylene (BTEX aromatics) as well as styrene and α-methyl styrene were isolated for chemical recycling. Mass balances were determined, and gas chromatography–mass spectrometry (GC-MS) as well as energy dispersive X-ray fluorescence (EDXRF) measurements provided data on the purity and halogen content of each fraction. This work shows that thermochemical conversion and the subsequent refining by fractional distillation is capable of recycling WEEE shredder residues, producing pure BTEX and other monocyclic aromatic fractions. A significant decrease of halogen content (up to 99%) was achieved with the applied methods.

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