Silicate Fiberglasses Modified with Quaternary Ammonium Base for Natural Gas Desulfurization

2017 ◽  
Vol 56 (37) ◽  
pp. 10318-10328 ◽  
Author(s):  
Bair S. Bal’zhinimaev ◽  
Evgenii V. Kovalyov ◽  
Alexei P. Suknev ◽  
Eugenii A. Paukshtis ◽  
Dzhalil F. Khabibulin ◽  
...  
Keyword(s):  
Natural Gas ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Base ◽  
Natural Gas Desulfurization

Pressure Prediction in Natural Gas Desulfurization Process Based on PCA and SVR

2014 ◽  
Vol 962-965 ◽  
pp. 564-569 ◽  
Author(s):  
Yan Chao Shao ◽  
Liang Jun Xu ◽  
Yan Zhu Hu ◽  
Xin Bo Ai
Keyword(s):  
Natural Gas ◽  
Prediction Model ◽  
Measured Data ◽  
Support Vector ◽  
Trend Prediction ◽  
Generalization Ability ◽  
Model Based ◽  
Scada System ◽  
Desulfurization Process ◽  
Natural Gas Desulfurization

Pressure monitoring is an important means to reflect the running status of the natural gas desulphurization process. By using the data mining technology, the interaction relationships between the pressure and other monitoring parameters are analyzed in this paper. A pressure trend prediction model is established to show the pressure status in the natural gas desulfurization process. Firstly, the theory of Principal Component Analysis (PCA) is used to reduce the dimensions of measured data from traditional Supervisory Control and Data Acquisition (SCADA) system. Secondly the principal components are taken as input data into the pressure trend prediction model based on multiple regression theory of Support Vector Regression (SVR). Finally the accuracy and the generalization ability of the model are tested by the measured data obtained from SCADA system. Compared with other prediction models, pressure trend prediction model based on PCA and SVR gets smaller MSE and higher correlation. The pressure trend prediction model gets better generalization ability and stronger robustness, and is an effective complement to SCADA system in the natural gas desulphurization process.

scholarly journals Data-Based Optimal Tracking Control for Natural Gas Desulfurization System

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 155825-155834 ◽  
Author(s):  
Wei Zhou ◽  
Zuojin Li ◽  
Huachao Liu ◽  
Juan Liu ◽  
Jianyang Shi
Keyword(s):  
Natural Gas ◽  
Tracking Control ◽  
Optimal Tracking ◽  
Optimal Tracking Control ◽  
Natural Gas Desulfurization

Flocculation of synthetic latexes with a quaternary ammonium base derived from resin acids and rosin

2011 ◽  
Vol 84 (2) ◽  
pp. 284-288 ◽  
Author(s):  
N. V. Kryuchkova ◽  
Yu. N. Orlov ◽  
D. A. Golovacheva ◽  
S. V. Levanova
Keyword(s):  
Quaternary Ammonium ◽  
Resin Acids ◽  
Quaternary Ammonium Base

Epimerization and Fragmentation of Glucose by Quaternary Ammonium Base Type Anion Exchange Resins1

1955 ◽  
Vol 77 (2) ◽  
pp. 481-482 ◽  
Author(s):  
Donald R. Buhler ◽  
Richard C. Thomas ◽  
B. E. Christensen ◽  
Chih H. Wang
Keyword(s):  
Anion Exchange ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Base

Perfectly Green Organocatalysis: Quaternary Ammonium Base Triggered Cyanosilylation of Aldehydes

2012 ◽  
Vol 30 (9) ◽  
pp. 2109-2114 ◽  
Author(s):  
Yeqian Wen ◽  
Mengwei Liang ◽  
Yiming Wang ◽  
Weimin Ren ◽  
Xiaobing Lü
Keyword(s):  
Quaternary Ammonium ◽  
Quaternary Ammonium Base

Synthesis of fluorinated block copolymer electrolyte containing quaternary ammonium base

2016 ◽  
Vol 51 (12) ◽  
pp. 5834-5842 ◽  
Author(s):  
Yong Hu ◽  
Da Wei Gu ◽  
Fan Li ◽  
Xiang Chun Qi ◽  
Kai Hua Yang ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Base ◽  
Copolymer Electrolyte

scholarly journals The interphase distribution of light REE Ce(III) and La(III) in system based on PEG-1500 – NaNO3 – H2O with the quaternary ammonium base addition

2022 ◽  
Vol 1212 (1) ◽  
pp. 012023
Author(s):  
A V Levina ◽  
A Ya Fedorov ◽  
M I Fedorova
Keyword(s):  
Organic Solvents ◽  
Quaternary Ammonium ◽  
Water Solution ◽  
Distribution Coefficients ◽  
Water Soluble ◽  
Process Time ◽  
Phase System ◽  
Two Phase ◽  
Quaternary Ammonium Base ◽  
Promising Alternative

Abstract The problem of e-waste processing and recovery of valuable metals from such waste for the second use is attracting more and more scientists’ attention. Liquid extraction as one of hydrometallurgy steps is a traditional method for the metal recovery. However, application of solvent extraction is not meet the green chemistry principles due to organic solvents. Aqueous two-phase systems based on water-soluble polymers are promising alternative for hazardous organic solvents. In this work the dependencies of Ce(III) and La(III) distribution coefficients from process time and the initial quaternary ammonium base concentration have been achieved. Also, based on the Ce(III) and La(III) extraction isotherms it has been shown that the metals initial concentrations are highly affects the distribution coefficients of studied metals. The possibility of aqueous two-phase system application as a solvent for quaternary ammonium salt for light REE (Ce(III) and La(III)) extraction from water solution has been shown.

Study on Desulfurization and Decarbonization Technology of Natural Gas on Bohai Offshore Platform

2019 ◽  
Author(s):  
Ping Lu ◽  
Zhaoguang Qu ◽  
Guoqiang Gao ◽  
Yan Huang ◽  
Xin Qian ◽  
...  
Keyword(s):  
Natural Gas ◽  
Gas Turbines ◽  
Reference Value ◽  
Offshore Platform ◽  
Gas Field ◽  
Advantages And Disadvantages ◽  
Process Characteristics ◽  
Technical Programs ◽  
Temperature Separation ◽  
Natural Gas Desulfurization

Abstract Based on the latest developments of desulfurization and decarbonization technologies of acidic natural gas, the process characteristics, product purity, consumptions, occupied area, advantages and disadvantages of various desulfurization and decarbonization methods are analyzed and compared, and the adaptability of the methods on offshore platform is fully considered. According to the actual situation of a Bohai offshore gas field, the low temperature separation method is adopted and the desulfurization and decarbonization process is simulated by using HYSYS software, and then the technical scheme is put forward to meet the requirements of the gas turbines on surrounding platforms and the transportation quality index of the southwest Bohai gas supply pipeline network. This research has a certain reference value for technical programs of natural gas desulfurization and decarbonization on similar offshore projects.

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