Influence of nitrogen supply and substrate interactions on the removal of paint VOC mixtures in a hybrid bioreactor was written by Song, JiHyeon;Kinney, Kerry A.;John, Paul. And the article was included in Environmental Progress in 2003.Recommanded Product: 763-69-9 The following contents are mentioned in the article:
The study presented here was designed to investigate VOC degradation patterns as a function of nitrogen availability in a hybrid vapor-phase bioreactor column treating a surrogate paint VOC mixture The mixture consisted of Me Pr ketone, Et 3-ethoxy propionate, Bu acetate, toluene and p-xylene. In order to quantify nitrogen requirements, a series of experiments was conducted under various nitrogen-limited and nitrogen-rich conditions. Overall, increasing nitrogen availability improved the total VOC removal efficiencies from approx. 70% to 99%. At the lowest available nitrogen condition, most of the Et 3-ethoxy propionate and Bu acetate, as well as approx. 75% of the Me Pr ketone were removed in the bioreactor, but toluene and p-xylene were not biodegraded. Increasing the nitrogen availability improved the biodegradation of Me Pr ketone. Substantial degradation of toluene and p-xylene occurred in this study only after the molar ratio of the aromatic compounds to the other constituents in the waste gas stream increased above 2.0. Elimination capacity tests performed with the VOC mixture and each individual VOC indicated that the presence of other VOCs inhibited the biodegradation of toluene and p-xylene. These findings imply that substrate inhibitions limit the removal of aromatic hydrocarbons, particularly when the available nitrogen in the packing media is low. This study involved multiple reactions and reactants, such as Ethyl 3-ethoxypropanoate (cas: 763-69-9Recommanded Product: 763-69-9).
Ethyl 3-ethoxypropanoate (cas: 763-69-9) belongs to esters. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Polyesters are important plastics, with monomers linked by ester moieties. Esters contain a carbonyl center, which gives rise to 120° C–C–O and O–C–O angles. Unlike amides, esters are structurally flexible functional groups because rotation about the C–O–C bonds has a low barrier. Their flexibility and low polarity is manifested in their physical properties; they tend to be less rigid (lower melting point) and more volatile (lower boiling point) than the corresponding amides. Recommanded Product: 763-69-9
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics