Amylanthraquinone (AAQ) is a novel,effective working carrier and a potential substitute of 2-ethylanthraquinone (EAQ) in hydrogen peroxide production process.In order to obtain the basic data for the process developme...Amylanthraquinone (AAQ) is a novel,effective working carrier and a potential substitute of 2-ethylanthraquinone (EAQ) in hydrogen peroxide production process.In order to obtain the basic data for the process development,the equilibria method was used to experimentally measure the solubility of AAQ in the mixed organic solvents of trimethylbenzen(TMB) and trioctyl phosphate(TOP) with different volume ratios,at 298.15—323.15 K. It was found that the solubility of AAQ was ca . 3 times greater than EAQ at the same conditions. Finally,experimental data were correlated by the modified λ-h equation,in which a factor of the solvent composition was added.The results showed that the modified λ-h equation can be used to predict the solubility of AAQ in TMB/TOP system with an average relative deviation (ARD) of 5%.展开更多
Anthraquinone working solutions used in hydrogen peroxide manufacture were selected as the test system to investigate the flow pattern transition behavior of foaming system in the trickle bed reactor (TBR) with the me...Anthraquinone working solutions used in hydrogen peroxide manufacture were selected as the test system to investigate the flow pattern transition behavior of foaming system in the trickle bed reactor (TBR) with the method of measurement and analysis of the instantaneous pressure drop fluctuations. The boundaries and the corresponding flow map for the foaming system were established for TBR packed with different size particles. It was found that the size of particles shows significant effect on the flow regime distributions. A theoretical model proposed by Cheng and Yuan and an empirical correlation by Bartelmus and Janecki were used to predict boundaries of the flow pattern transition for anthraquinone working solutions. Comparison between estimation and experimental results showed that the predicted boundaries of Cheng and Yuan theoretical model are consistent with the observations in the present work.展开更多
文摘Amylanthraquinone (AAQ) is a novel,effective working carrier and a potential substitute of 2-ethylanthraquinone (EAQ) in hydrogen peroxide production process.In order to obtain the basic data for the process development,the equilibria method was used to experimentally measure the solubility of AAQ in the mixed organic solvents of trimethylbenzen(TMB) and trioctyl phosphate(TOP) with different volume ratios,at 298.15—323.15 K. It was found that the solubility of AAQ was ca . 3 times greater than EAQ at the same conditions. Finally,experimental data were correlated by the modified λ-h equation,in which a factor of the solvent composition was added.The results showed that the modified λ-h equation can be used to predict the solubility of AAQ in TMB/TOP system with an average relative deviation (ARD) of 5%.
文摘Anthraquinone working solutions used in hydrogen peroxide manufacture were selected as the test system to investigate the flow pattern transition behavior of foaming system in the trickle bed reactor (TBR) with the method of measurement and analysis of the instantaneous pressure drop fluctuations. The boundaries and the corresponding flow map for the foaming system were established for TBR packed with different size particles. It was found that the size of particles shows significant effect on the flow regime distributions. A theoretical model proposed by Cheng and Yuan and an empirical correlation by Bartelmus and Janecki were used to predict boundaries of the flow pattern transition for anthraquinone working solutions. Comparison between estimation and experimental results showed that the predicted boundaries of Cheng and Yuan theoretical model are consistent with the observations in the present work.
