Fig. 16. eMethanol production: Renewable electricity is used to split water into hydrogen and oxygen. The hydrogen is combined with carbon dioxide to form methanol [74]. Due to the high exothermicity, methanol synthesis reactor system is operated at a pressure of 70 bar and a temperature of...
A novel process for simultaneous amine scrubbing and biomethanation was developed. • The utilization of CO2from oxygen-rich flue gases for biomethanation was achieved. • Replacement of the energy-intensive thermal CO2stripping by microbial stripping. ...
In this research, an AD and MEC were combined to demonstrate the performance of using MEC during the last 11 days of digestion when biogas production had decreased but solids and chemical oxygen demand (COD) still persisted and could be further reduced given enough time. The current study aim...
As a measure of the solubilization of organic matter after pretreatment, the rate of soluble chemical oxygen demand (sCOD, Equation (1)) was compared with particulate chemical oxygen demand (pCOD, Equation (2)). sCOD was measured as COD in the suspension (supernatant phase) after centrifuging...
which require oxygen for survival. The effects would have ranged from mild physiological consequences to death, depending on the extent of the dysoxia or anoxia. Where anoxia became pervasive and enduring, as in the deep ocean, it would have been a major cause of the end-Permian marine extinc...
4.3Indication of immediate medical attention and special treatment needed, if necessary Basic treatment: Establish a patent airway. Suction if necessary. Watch for signs of respiratory insufficiency and assist ventilations if necessary. Administer oxygen by nonrebreather mask at 10 to 15 l/min. Monito...
Use forced ventilation and local exhaust, orboth, to prevent an accumulation of gas thatcould reduce the oxygen level to below 19.5%.Ensure good floor ventilation. Use a checkvalve or trap in the discharge line to preventback flow into the cylinder. Where applicable,use a pressure-reducing reg...
The oxygen storage capacity (OSC) can be influenced by ceria surface area and particle size and by the addition of dopants into CeO2 structure [25,26,27,28]. The addition of dopants promotes the OSC of ceria-based materials [20,28,29,30,31]. The most common dopant found in the ...
reported the oxidation of methane to methanol using water as the sole oxidant in the absence of molecular oxygen [21]. In this work, the increased active sites come from ZcuIIZ and water. Water converts ZcuIIZ to active sites, thereby increasing the activity of the catalyst for methane ...
Methane conversion was instead calculated in two key pathways: pyrolysis and oxidation. Due to oxygen in the system present from partially hydrated salts, quartz (reactor side wall material) decomposition, and catalyst reduction. As a result, carbon oxides are observed in the product stream. Hence...