Results 11 to 20 of about 200,842 (143)

高矿化度油田水系统杀菌除氧剂的复配研究

open access: yesGongye shui chuli, 2022
研制了一种由混合氨基酸络合铜、双癸基二甲基氯化铵(DDAC)和D-异抗坏血酸钠复配的杀菌除氧剂,应用于油田水系统。研究了此杀菌除氧剂在高矿化度油田模拟水质下的杀菌和除氧性能。杀菌性能测试表明,复配试剂对油田常见的SRB、TGB和IB这3种细菌都具有很好的灭杀效果,附着型垢层细菌的杀菌率在98%以上,游离型细菌的杀菌率在99%以上。该试剂在40~80 ℃温度区间能达到98%以上的垢层杀菌率,且能实现12 h内的高效快速杀菌。除氧测试表明,复配试剂在温度为30~70 ℃或pH为6~10的范围内 ...
姚彬   +4 more
doaj   +2 more sources

锅炉给水处理中的化学除氧剂

open access: yesGongye shui chuli, 2010
锅炉给水中溶解氧的存在是造成热力设备腐蚀的重要原因,必须选择合适的化学除氧剂,尽可能地降低溶解氧含量。化学除氧剂分为无机除氧剂和有机除氧剂,作者对研究应用较多的几种化学除氧剂的除氧效果、缓蚀性能、优缺点和应用情况进行了综述和比较。
丁姗姗, 曹顺安, 胡家元
doaj   +2 more sources

催化亚硫酸钠除氧的研究

open access: yesGongye shui chuli, 1995
研究了亚硫酸钠除氧方法及其特点,研制出一种加有辅助还原剂H的新型催化亚硫酸钠除氧剂并试验了其性能。该除氧剂在pH=7~12范围内除氧效果好,速度快,是一种适合于热水锅炉除去水中溶解氧的新型复合除氧剂。
丁广吉, 韩玉香, 张显军, 盖军
doaj   +2 more sources

新型除氧剂

open access: yesGongye shui chuli, 1992
为了克服亚硫酸钠和联氨作为锅炉除氧剂存在的不足。国外又研究、开发出了许多种新型除氧剂。本文概述了最近取得专利的几种新型化学除氧剂。
谢仁安
doaj   +2 more sources

From Tetracycline to Sulfamethoxazole: Photocatalytic Degradation and Mechanistic Insights in Aquatic Environments

open access: yesRare Metals, Volume 45, Issue 10, October 2026.
ABSTRACT The pollution caused by antibiotics to aquatic ecosystems is becoming increasingly serious, thus more effective treatment methods are urgently required. Although the photocatalytic degradation behavior of tetracycline (TC) is relatively well understood, sulfamethoxazole (SMZ), an emerging pollutant originating from large‐scale livestock ...
Yihang Yang   +6 more
wiley   +1 more source

油田注汽锅炉用水除氧剂的研究

open access: yesGongye shui chuli, 2001
作者从静态方面测量一些变量对亚硫酸钠除氧效果的影响,来确定适用于油田注汽锅炉除氧的最佳条件和除氧剂。若单独用硫酸钠作除氧剂,则因水中亚硫酸钠的残余量高,产生严重的酸腐蚀,而不适用作油田注汽锅炉除氧剂。根据催化机理,在弱碱条件下加入二价镍离子和二价钴离子能提高水中亚硫酸钠的反应效率,降低水中亚硫酸钠的残余量,对亚硫酸钠的除氧效果具有明显催化作用。若按处理后水样中亚硫酸钠的残余量和吨水处理费用越少越好为衡量标准,硫酸钴催化亚硫酸钠除氧剂是最适合用作油田注汽锅炉用水除氧的除氧剂。
张林, 朱龙
doaj   +2 more sources

煤化工高盐废水臭氧催化氧化脱除cod

open access: yes, 2020
针对煤化工高盐废水中有机物难降解问题,采用浸渍-煅烧法制备了负载有活性金属氧化物的活性氧化铝型催化剂,探索催化剂的制备工艺和反应操作条件对废水COD去除率的影响。结果表明:活性氧化铝载体催化性能优于陶粒,活性氧化铝负载Cu、Mn、Ni的催化活性较高,将2种活性组分进行组合制得的MnO_x-NiO_x/γ-Al_2O_3催化剂,在经过60 min的臭氧催化氧化后,COD的去除率可达51.3%;利用BET、SEM-EDS、 XRD对催化剂进行了表征和分析,Mn、Ni成功负载到活性氧化铝表面和孔隙内 ...
段锋, 马栋
core   +1 more source

In Situ Engineering an S‐Scheme MnS/MnB‐MBene Heterojunction With Spatially Separated Redox Sites for Efficient H2 Evolution and 5‐HMF Oxidation

open access: yesRare Metals, Volume 45, Issue 9, September 2026.
ABSTRACT Photocatalytic H2 evolution coupled with biomass upgrading offers a sustainable route for clean energy conversion and high‐value chemical synthesis. Herein, an in situ grown S‐scheme MnS/MnB‐MBene heterojunction (denoted as SMx) was fabricated via alkaline etching of Mn2AlB2 followed by controlled sulfurization.
Pei Li   +7 more
wiley   +1 more source

Rapid Removal of Binder From Spent Lithium‐Ion Batteries by Microwave Radiation for Enhanced Flotation Separation of Anode and Cathode Materials

open access: yesRare Metals, Volume 45, Issue 9, September 2026.
ABSTRACT Achieving rapid and selective separation of anode and cathode materials remains a critical challenge in the recycling of spent lithium‐ion batteries. This study develops a microwave‐enhanced flotation strategy for the efficient recovery of cathode and anode materials.
Peiyuan Ye   +5 more
wiley   +1 more source

用低毒除氧剂代替联氨除氧的应用研究

open access: yesGongye shui chuli, 1999
大庆石化总厂化肥厂1994年以前一直使用联氨(N2H4)作为锅炉给水除氧剂。由于联氨具有毒性并致癌、且易燃易爆等缺点,因此,1994年化肥厂试验使用了一种新型除氧剂---二甲基酮肟(DMKO).几年来的应用表明,该除氧剂使用情况良好,完全能够满足工艺要求,同时,还降低了该厂每年的药剂费用。
陈晓峰
doaj   +2 more sources

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