For example, the un-substituted LCO, LCPO and LCZO show a CO2 selectivity of around 13% at 300 °C, while it is improved to 80% on both Pd and Zn containing LaCo0.85Pd0.075Zn0.075O3±δ (LCPZO-15).
A H2/N2 ideal selectivity of around 500 was reached at 400 °C and 50 kPa of transmembrane pressure and it remained stable up to 600 h under operation.
After the preparation method of catalysts and reaction conditions were optimized, high benzene selectivity of around 90% were obtained with a yield of more than 10% at 973 K over the 6 wt.% Mo/HMCM-49 catalyst and the catalyst can keep the activity for more than 150 h through several simple calcination in air to remove carbon deposition for reactivation.
"Highly selective" colleges represent those with a selectivity index of 2; "selective" colleges represent those with a selectivity index from 3 to 5; "nonselective" colleges represent those with a selectivity index greater than 5 or unlisted in Barron's.
Thus, a nucleotide or series of nucleotides with a selectivity ratio of one has the same relative frequency around edited and unedited cytidines, while a nucleotide with a selectivity ratio greater than 1 is more frequently present around an edited cytidine.
During a 500-h long-term test at optimized reaction conditions, all the components in the simulated gasoline converted completely, and around 90% selectivity of CO, around 95% selectivity of H2 and around 8.0 mL cm−2 min−1 oxygen permeation flux were achieved.
Hydrogen is the main product with a selectivity around 55 60%.
MSR selectivities of around 90% were observed on both catalysts.
The production was further investigated using industrially relevant linoleic acid concentrations (100 300 g/L) leading to HPODE yields of ∼40% and the volumetric productivity 3.6 g/(L h), and a selectivity for 13- Z,E -HPODE of around 74%.
As a result, the selectivity of the reaction was initially higher in MG1655 pSTB7 and PHL628 peakingpeating aroundund 75% at 4 hours, although the selectivity of these two strains decreased to around 50% over the course of the reaction.
