Kinetic study of carbonaceous deposit formation and catalyst deactivation in hydrotreating of fast pyrolysis bio-oil was written by Ma, Xiaoyuechuan;Pang, Shusheng;Xu, Qixiang. And the article was included in Chemical Engineering Science in 2021.Safety of 4-Hydroxy-3-methoxyphenethanol The following contents are mentioned in the article:
Fast pyrolysis of biomass followed by hydrotreating of bio-oil is considered to be a promising thermochem. conversion process of biomass to liquid fuel. Catalytic hydrotreating converts the crude bio-oil from biomass pyrolysis into liquid intermediates with reduced oxygen content, and low viscosity and acidity. However, effective lifetime of catalyst can be significantly reduced by coking which has been recognized as the main cause of catalyst deactivation during the hydrotreating process. In this study, similar phenomenon has been observed but the catalyst deposit was different from the reported coke and thus a new term of carbonaceous deposit is introduced. Kinetics of the carbonaceous deposit formation and its characteristics have been investigated for hydrotreating of bio-oil derived from fast pyrolysis of rice husk using com. HTB-45 Ni-based catalyst. A math. model for the hydrotreating process, which is based on key chem. reactions and consists of ordinary differential equations (ODEs), has been developed and solved with the kinetic parameters being obtained from the experiments Results of this study are helpful for better understanding and optimization of the catalytic upgrading of fast pyrolysis bio-oil. This study involved multiple reactions and reactants, such as 4-Hydroxy-3-methoxyphenethanol (cas: 2380-78-1Safety of 4-Hydroxy-3-methoxyphenethanol).
4-Hydroxy-3-methoxyphenethanol (cas: 2380-78-1) belongs to ethers. 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. Because of their lack of hydrogen-bond-donating ability, esters do not self-associate. Consequently, esters are more volatile than carboxylic acids of similar molecular weight.Safety of 4-Hydroxy-3-methoxyphenethanol
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem