Pyrolysis of plastic waste allows to produce liquid fractions, but their molecular weight distributions are typically very large whereas it would be interesting focus on light hydrocarbons. In this study, the pyrolysis polypropylene (PP) was investigated using a semi-batch, vertical glass reactor heated at 480 °C equipped with reflux condenser. The performed and without temperature top condense...

Pursuing the aim of improving current waste plastics management strategy, we have investigated co-hydrocracking high-density polyethylene (HDPE) with vacuum gasoil (VGO) over a PtPd/HY catalyst for converting this blend into high-quality fuels. In particular, work was focused on assessing effects reaction time product yields and composition gas, naphtha light cycle oil (LCO) fractions, which de...

Hydrogen sulfide removal catalyst was prepared chemically by precipitation of zinc bicarbonate at a controlled pH. The physical and chemical catalyst characterization properties were investigated. The catalyst was tested for its activity in adsorption of H2S using a plant that generates the H2S from naphtha hydrodesulphurization and a unit for the adsorption of H2S. The results comparison betwe...

The objective of this work consists in the analysis of reliability in process plants in order to manage the failure risks and avoid them considering the probability of failure among other important criteria. The preventive maintenance is an important function for the better operation of any enterprise; we propose the ranking of process equipment according with their criticality for the operatio...

Five referee sera were analyzed for total cholesterol at several laboratories by up to 10 different methods or modifications. Results by any method varied less within a single laboratory than among laboratories, although the ranges of replicate analyses reported differed considerably. Those methods including procedures for saponification with potassium hydroxide and some isolation of cholestero...

A pyridine-linked bis(aniline) pincer ligand, [2]H(2) ([2]H(2) = (2,6-NC(5)H(3)(2-(2,4,6-Me(3)C(6)H(2))-NHC(6)H(4))(2)), has been synthesized in two steps. Deprotonation with Me(3)SiCH(2)Li followed by metalation with FeCl(2) yielded a LiCl adduct of [2]Fe. The complex is freed of LiCl with excess TlPF(6) or by crystallization from toluene/petroleum ether, giving [2]Fe(THF). [2]Fe(THF) reacts w...