采用丙酮作为吸收溶剂，由污水污泥快速热解制备生物油过程中三乙胺的形成。
Triacetonamine formation in a bio-oil from fast pyrolysis of sewage sludge using acetone as the absorption solvent.
机构信息
Department of Chemical and Environmental Engineering, Gunma University, 1-5-1 Tenjin-cho, Kiryu 376-8515, Japan.
出版信息
Bioresour Technol. 2010 Jun;101(11):4242-5. doi: 10.1016/j.biortech.2010.01.031.
A sewage sludge sample was pyrolyzed in a drop tube furnace at 500 degrees C and sweeping gas flow rate of 300cm(3)/min. Triacetonamine (TAA) was detected with GC/MS as major component in the resulting bio-oil using acetone as the absorption solvent and proven to be a product from the reaction of NH(3) in the bio-oil with the absorption solvent acetone. TAA yield increased with storage time and reached a level about 28.4% (% sludge fed, daf) after 175h. Since the reaction of pure NH(3) with acetone does not proceed, some species in the bio-oil must catalyze the reaction of NH(3) with acetone. TAA was isolated in a high yield (27.9%, daf) and high purity (80.4%) by column chromatography with different solvents, including mixed solvents, as eluants. The study revealed the possibility of sewage sludge as potential resource of TAA.
取一份污水污泥在 500°C 下的管式炉中进行热解，扫气流量为 300cm(3)/min。采用丙酮作为吸收溶剂，GC/MS 检测到生物油中的主要成分是三乙胺（TAA），证明其是生物油中 NH(3)与吸收溶剂丙酮反应的产物。TAA 的产率随储存时间的延长而增加，在 175h 后达到约 28.4%（%进料污泥，干基）。由于纯 NH(3)与丙酮的反应不会进行，因此生物油中的某些物质必须催化 NH(3)与丙酮的反应。通过柱层析法，采用不同溶剂（包括混合溶剂）作为洗脱剂，TAA 的分离产率（27.9%，干基）和纯度（80.4%）均较高。本研究表明污水污泥作为 TAA 潜在资源的可能性。
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