Evolution of S/N containing compounds in pyrolysis of highly oily petroleum sludge was written by Wang, Ziyi;Wang, Zhenbo;Sun, Zhiqian;Ma, Kesheng;Du, Lianmeng;Yuan, Rui. And the article was included in Fuel in 2022.Recommanded Product: 1-(tert-Butyl)-3-methyl-1H-pyrazol-5-amine This article mentions the following:
Pyrolysis of oily sludge in inert environment has a strong potential for energy recovery, in which the transformation of S/N containing compounds is a key to influence the quality of various products. This work addresses the evolution of S/N containing compounds in pyrolysis process of two oily sludge samples with high oil content by comparing the species and distribution of S/N containing compounds in origin samples and char. The results demonstrate that aromatic and saturated completed volatilize or react completely at 500 °C while the resin completed the reaction at 750 °C-800 °C. The S-containing compounds are mainly Sulfate-S. At 500 °C, most sulfate remained unchanged, and continued heating led to a large-scale decomposition After condensation and cyclization, the S/N compounds were transformed into components with high thermal stability. Sulfoxide-S, Thiophenic-S and Aromatic-S with more stable thermal stability held the main position at higher temperature The transformation of N-containing compounds was almost based on Proteins-N. As the temperature rising from 500 °C to 700 °C and 900 °C, the content of protein-N decreased continuously and transformed into high thermal stability Pyridine-N, Pyrrole-N and Quaternary graphic-N, which could account for more than 90%. This work provides a theor. basis for the distribution and transformation of S/N in char, the deep application of char and the pollution prevention in subsequent treatment. In the experiment, the researchers used many compounds, for example, 1-(tert-Butyl)-3-methyl-1H-pyrazol-5-amine (cas: 141459-53-2Recommanded Product: 1-(tert-Butyl)-3-methyl-1H-pyrazol-5-amine).
1-(tert-Butyl)-3-methyl-1H-pyrazol-5-amine (cas: 141459-53-2) belongs to pyrazole derivatives. Pyrazole is a weak base, with pKb 11.5 (pKa of the conjugated acid 2.49 at 25 °C).Pyrazole used as a ligand to prepare organometallic compounds. Pyrazoles are commonly used scaffold molecules in drug discovery projects. The use of pyrazole derivatives is based on their analgesic, anti-inflammatory, antipyretic, antiarrhythmic, sedative, muscle relaxant, neuroleptic, anticonvulsant, monoamine oxidase inhibitory, antidiabetic and antibacterial activities.Recommanded Product: 1-(tert-Butyl)-3-methyl-1H-pyrazol-5-amine
Referemce:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics