A process is described in which methane is reacted with acetylene in the presence of a solid acid catalyst containing fluoride to produce isobutene in high yields. The process may take place at room temperature or lower and atmospheric pressure. The conversion of acetylene typically approaches 100...
The Gram-negative bacterium Pelobacter acetylenicus lives in anoxic oceanic sediments and converts acetylene into acetyl-CoA via acetaldehyde to fuel its C2-metabolism12. Capitalizing on our previous findings of a primordial conversion of acetylene into fatty acids and related organic molecules, this ...
Samples containing 5.0 wt% Ni are capable of complete acetylene conversion over a period of 5 h at 170 掳C when using a 27-29% C2H2 and 61-64% H2 from the percentage of composition of electrocracking gas diesel fraction feedstocks. The amount of ethane and ethylene equivalent to ...
The conversion of the pyridine complex is more complete, perhaps because of the known swelling effect of pyridine on starch (see later discussion). The low sorption capacity for CCl4 has been confirmed by Gupta and Bathia.354 These authors also observed good reproducibility of CCl4 adsorption-...
ac calorimetry was used to study the melting of CDfilms at submonolayer coverages. Near 131 K two sharp, closely spaced heat-capacity peaks indicative of a sequence of two first-order phase transitions are observed. The higher temperature peak is identified as melting. These results are compared...
The introduction of In atoms apparently played a crucial role in stabilizing Ru, as evidenced by the deactivation rate of RuN4/NC (~4.78%) compared to no discernible drop of acetylene conversion found for Ru–N–In/NC. Notably, the VCM selectivity for these catalysts was more than 99% ...
After the conversion of arsenic to volatile hydride the analysis is done using the flame-FIAS technique with a 193.7-nm wavelength [21]. Five percent (w/v) of potassium iodide (KI) and 5% (w/v) of ascorbic acid was used as a reducing agent for reducing As(V) to As(III). An oxy...
toproducevinylchloride. Reactionconditionswereoptimizedaccordingtokinetics analyses.Undertheoptimizedreactionconditions obtained,thebimetallicAu–Cu/Cshowedexcellentper- formanceswithmorethan99.5%conversionandselec- tivityanddidnotdeactivatein200honstream.
Furthermore, the loss of 1,3-butadiene in the acetylene conversion process is minimized to 1 wt % or less, and the recovery of the highly pure 1,3-butadiene separation process is maximized to 98.5 wt % or more, consequently increasing the total recovery of 1,3-butadiene through the ...
The evaluated technique included studies of the diffusion of ethylene and propane in a soil column, as well as studies of the optimal substrate concentration and grade of purity of the substrate. In addition, the conversion factor between amounts of reduced acetylene as compared wtih reduced ...