一二三四区视频,亚洲少妇熟女色,日本久热无码视频网,欧美国产日韩大尺度,亚洲a视频,久久少妇一区二区,日韩999无码视频,刺激久久久久久久,啊啊啊啊不要啊在线

ChemicalBook >> journal list >> AlKhawarizmi Engineering Journal >>article

AlKhawarizmi Engineering Journal

Download PDF

Comparison of Different Synthesis Schemes for Production of Sodium Methoxide from Methanol and Sodium Hydroxide

Published:30 November 2020 DOI: 10.4186/ej.2020.24.6.63
Natthiyar Aeamsuksai,?T. Mueansichai,?P. Charoensuppanimit,?P. Kim-Lohsoontorn,?F. Aiouache,?S. Assabumrungrat

Abstract

This research investigates the process simulation of sodium methoxide (NaOCH3) synthesis from methanol (CH3OH) and sodium hydroxide (NaOH) under three synthesis schemes: schemes A, B, and C. Scheme A consisted of one equilibrium reactor and two distillation columns, scheme B one reactive distillation column and one distillation column, and scheme C one reactive distillation column and pervaporation membrane. The simulation parameters included CH3OH/NaOH feed flow ratio (1.2-1.6), number of stages (5-30), bottom flow rate (1400-1600 kg/h), and feed stage location (5, 10, 15, 20, 21, 22, 23, and 24). The simulation parameters were varied to determine the optimal NaOCH3 synthetic conditions under different schemes with 0.01 wt% water content, maximum 45 wt% NaOCH3, and the lowest total energy consumption. The results showed that scheme C had the lowest total energy consumption (34.25 GJ/h) under the optimal synthetic condition of 1.4 for CH3OH/NaOH feed flow ratio, 25 for the number of stages, 1550 kg/h for the bottom flow rate, and the 24th feed stage location, with the NaOCH3 flow rate of 675 kg/h. Scheme C thus holds promising potential as an energy-efficient alternative for synthesis of NaOCH3. The novelty of this research lies in the use of pervaporation membrane in place of distillation column to separate CH3OH from water and to lower energy consumption and capital cost.

Substances (3)

Related products
Procduct Name CAS Molecular Formula Supplier Price
Sodium hydroxide 1310-73-2 NaOH 1358 suppliers $14.00-$17490.00
Methanol 67-56-1 CH4O 895 suppliers $9.00-$7620.00
Sodium Methoxide 124-41-4 CH3NaO 786 suppliers $10.16-$3800.00

Similar articles

IF:0

Preparing Sodium Methoxide from Sodium Hydroxide by Reaction Coupling with Separation Processes

Advanced Materials Research Meng Xiong,?C. Wang,etc Published: 1 July 2014
IF:4.3

Sodium methoxide: a simple but highly efficient catalyst for the direct amidation of esters?

Chemical Communications Takashi Ohshima, Yukiko Hayashi,etc Published: 12 April 2012
IF:3.9

Study on the toxicity of sodium bromide to different freshwater organisms

Food and Chemical Toxicology J.H. Canton , P.W. Wester ,etc Published: 1 August 1983
满城县| 宾阳县| 股票| 南昌县| 平凉市| 抚顺县| 台南县| 兴城市| 庐江县| 枝江市| 华容县| 宁河县| 岳阳市| 吉林省| 林州市| 大化| 二连浩特市| 三亚市| 德格县| 陆河县| 苍山县| 栖霞市| 广南县| 霍林郭勒市| 信阳市| 永寿县| 开鲁县| 栾城县| 旺苍县| 舟曲县| 涞水县| 灌云县| 红桥区| 当雄县| 郴州市| 颍上县| 基隆市| 丹江口市| 桃园市| 北川| 上饶市|