欧美色亚洲色,欧美日韩国产亚洲成人自拍,中文字幕人妻一区二区在线视频侦探,熟女一区二区少妇

你好,歡迎訪問濟南金昊化工有限公司!

專注品質(zhì),信賴服務(wù)

我們用心做產(chǎn)品服務(wù)

咨詢熱線:

13655318786

行業(yè)新聞

您現(xiàn)在的位置: 網(wǎng)站首頁>>新聞中心>>行業(yè)新聞順酐低碳烯烴技術(shù)

順酐低碳烯烴技術(shù)

來源:http://m9660.cn/ 日期:2024-03-29 發(fā)布人: 瀏覽次數(shù):0

順酐是世界上三大酸酐原料之一(醋酐、順酐、苯酐),且其下游產(chǎn)品有著相當廣泛的開發(fā)和應(yīng)用前景,可用于合成樹脂、涂料、農(nóng)藥、潤滑油添加劑、醫(yī)藥、紙張?zhí)幚韯?、食品添加劑、穩(wěn)定劑等方面。

Maleic anhydride is one of the three major anhydride raw materials in the world (acetic anhydride, maleic anhydride, phthalic anhydride), and its downstream products have a wide range of development and application prospects, which can be used in the synthesis of resins, coatings, pesticides, lubricant additives, pharmaceuticals, paper processing agents, food additives, stabilizers, and other aspects.

目前順酐技術(shù)主要有丁烷法工藝和苯法工藝。我國目前順酐產(chǎn)能以傳統(tǒng)苯法工藝居多,但隨著碳四資源利用的推進,丁烷法順酐裝置也逐漸形成規(guī)模。

At present, the main production technologies for maleic anhydride include butane process and benzene process. At present, the production capacity of maleic anhydride in China is mainly based on the traditional benzene process, but with the promotion of the utilization of C4 resources, the butane process maleic anhydride plant is gradually forming a scale.

20230426020911983.jpg

瑞華順酐技術(shù)采用正丁烷為原料,與空氣反應(yīng)順酐。氧化反應(yīng)是強放熱反應(yīng),反應(yīng)過程中需要將反應(yīng)熱移走,因而順酐裝置能往外輸出大量蒸汽。因為這個特點,順酐裝置特點適合與一些高耗汽的裝置聯(lián)合設(shè)置,如乙苯苯乙烯裝置,這樣能達到蒸汽互補的目的,提高兩套裝置的經(jīng)濟性。

Ruihua Maleic Anhydride Technology uses n-butane as the raw material and reacts with air to produce maleic anhydride. The oxidation reaction is a strong exothermic reaction, during which the reaction heat needs to be removed, so the maleic anhydride device can output a large amount of steam to the outside. Due to this characteristic, the maleic anhydride unit is suitable for joint installation with some high steam consuming units, such as the ethylbenzene styrene unit, which can achieve the goal of steam complementarity and improve the economic efficiency of the two units.

與傳統(tǒng)的苯法順酐技術(shù)相比,RHMA技術(shù)能完全苯對環(huán)境的污染、順酐收率高、低能耗、外輸蒸汽量高、裝置操作周期長的特點。

Compared with traditional benzene based maleic anhydride technology, RHMA technology can completely eliminate the environmental pollution caused by benzene, with high yield of maleic anhydride, low energy consumption, high output of steam, and long operating cycle of the device.

丁烷經(jīng)蒸發(fā)后與空氣混合,然后進入氧化反應(yīng)器。氧化反應(yīng)器為列管式固定床反應(yīng)式,催化劑置于反應(yīng)管內(nèi),丁烷和空氣與催化劑接觸后反應(yīng)生成順酐,同時放出大量的反應(yīng)熱,由殼側(cè)的熔鹽移走。被加熱的熔鹽用于產(chǎn)汽后,再回到反應(yīng)器中。在氧化反應(yīng)器,丁烷單程轉(zhuǎn)化率可達82~85%,順酐的重量收率97~103%。

Butane is evaporated and mixed with air before entering the oxidation reactor. The oxidation reactor is a tubular fixed bed reactor, with the catalyst placed inside the reaction tube. Butane and air react with the catalyst to generate maleic anhydride, while releasing a large amount of reaction heat, which is removed by the molten salt on the shell side. The heated molten salt is used for steam production and then returned to the reactor. In the oxidation reactor, the one-way conversion rate of butane can reach 82-85%, and the weight yield of maleic anhydride is 97-103%.

反應(yīng)后的氣體經(jīng)兩級冷卻后進入后處理系統(tǒng),瑞華順酐技術(shù)的后處理系統(tǒng)采用溶劑吸收工藝,溶劑選用鄰苯二甲酸二丁酯。反應(yīng)氣經(jīng)吸收、解吸、精制等操作后得到產(chǎn)品順酐,純度達到99.5%。

After two stages of cooling, the reacted gas enters the post-treatment system. The post-treatment system of Ruihua Maleic Anhydride Technology adopts a solvent absorption process, and the solvent is dibutyl phthalate. The reaction gas undergoes absorption, desorption, refining and other operations to obtain the product maleic anhydride, with a purity of 99.5%.

本文由順酐廠家提供技術(shù)支持,更多的詳細精彩內(nèi)容請點擊我們的網(wǎng)站http://m9660.cn我們將會全心全意為您提供滿意的服務(wù)。

This article is supported by the manufacturer of maleic anhydride. For more detailed and exciting content, please click on our website http://m9660.cn We will wholeheartedly provide you with satisfactory service.

相關(guān)新聞
日韩无码久久久久不卡| 午夜一区日韩| 亚洲欧洲av人一区二区| 久久婷婷伦理图库| 2020亚洲午夜福利| 色悠悠五月| 日本大胆欧美久久久| 美国大鸡巴肏屄视频| 亚洲伦理久久| 印度激情婷婷综合| 久久综合网色不卡网| 99jiujiu wuma| 久久中文字幕av成人| 国产久久视频伦理播放网址| 欧美日韩无遮无码| www.caoporn超碰在线| 美国壮熊鸡巴又大又粗网站 | 97美女视频| 国外午夜精品一区二区三区| 精品久久亚洲涩涩| w成人福利91| 国产美女精品一区| 老熟妇免费在线视频| 大鸡巴操美女们| 草婷婷在线| 全国欧美黄色片| 国内性生活视频毛片| 国产特级三浦惠理子二区三区 | 国产一区亚洲一区| 国产精品pornwww爽porn| 精品美女久久久浪潮av有声 | 成人午夜日韩影院| 97人人夜夜精品视频| 人妻交换久久| mitun 99 久久| 国产精品色诱区| www超碰麻豆| 欧美麻豆电影天堂| 黄色黄片国产| 亚洲四级毛片在线观看视频| 少妇浪潮后入|