Results 1 to 10 of about 2,476 (79)

MDEA消泡剂在炼化脱硫与污水处理系统中的应用

open access: yesGongye shui chuli, 2021
石油炼化行业多采用甲基二乙醇胺(MDEA)对炼厂气等气体进行净化。MDEA可选择性脱除硫化氢,具有稳定性好、不易降解、对管路腐蚀小、工艺设备投资及操作费用低等特点,但抗污染能力较差。MDEA净化运行过程中会不断积累固体颗粒、降解物质、腐蚀物、二价金属离子、有机物等污染物并产生泡沫,导致炼厂气净化度低、脱硫剂大量损耗,给下游污水处理系统造成处理压力。制备了一系列非硅系MDEA液消泡剂样品,进行性能筛选与安全性能评价,研究其消泡性能、MDEA液污染影响,及对脱硫系统及后端污水处理系统的影响 ...
林亚祥
doaj   +2 more sources

Analysis of Key Flavor Compounds in Peeled Walnut Kernel Based on GC-O-MS and Sensory Evaluation(基于GC-O-MS及感官评价分析脱皮核桃仁关键风味物质) [PDF]

open access: yesShipin kexue jishu xuebao, 2023
Peeled walnut kernels are popular among consumers for their easy consumption, wide application scenarios and excellent flavor, of which flavor is an important index for evaluating walnut quality.
JIA Yimin(贾懿敏)   +5 more
doaj   +1 more source

Research on performance of the concrete foaming agent(泡沫混凝土发泡剂的发泡性能研究)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2012
为提高混凝土发泡剂性能,分别选用月桂酰基肌氨酸钠(LS-95)、甲基葡萄糖苷聚氧乙烯(120)醚双油酸酯(DOE-120)和丙烯酸交联树脂(340)对常用发泡剂十二烷基苯磺酸钠(LAS)进行复配研究.通过罗氏泡沫仪的起泡高度和消泡半衰期表征发泡剂泡沫稳定性,并对产生的结果进行解释.实验结果表明,在适当条件下,3种复配添加剂都能在一定程度上改善十二烷基苯磺酸钠的泡沫性能,其中0.7% LAS加入25%(与LAS质量比)的DOE-120和10%(与LAS质量比)的340所组成的三组分复合体系,泡沫性能优异.
XIAOHong-li(肖红力)   +1 more
doaj   +1 more source

Study on Analysis of Organophosphorus Pesticide Residues in Honeysuckle and Migration Model During Brewing Process(金银花中有机磷农药残留分析及其冲泡过程迁移模型研究) [PDF]

open access: yesShipin kexue jishu xuebao, 2020
In order to ensure the safety of tea drinking for consumers, a rapid method for the determination of six organophosphorus pesticide (parathion, fenthion, terbufos, sulfotep, profenofos and ethoprophos) residues in honeysuckle and tea infusion was ...
LI Jianxun(李建勋)   +5 more
doaj   +1 more source

MBR膜专用消泡剂在炼化废水MBR系统中的应用

open access: yesGongye shui chuli, 2015
将一种非硅系MBR膜专用消泡剂应用于中捷石化炼化污水中,研究了其消泡性能、MBR膜污染性、活性污泥友好性等,并进行现场应用测试。测试结果表明,该MBR膜专用消泡剂能有效解决炼化污水的泡沫问题,且对MBR膜及生化污泥不造成运行影响。
王超, 王昊, 陈军, 石硕年
doaj   +2 more sources

Acupoint massage combined with Traditional Chinese Medicine soaking therapy and nursing of a patient with hand-foot syndrome caused by oral administration of capecitabine for colorectal cancer (穴位按摩联合中药泡洗疗法治疗1例肠癌患者口服卡培他滨致手足综合征的护理)

open access: yes中西医结合护理, 2023
This paper investigate the effect of acupoint massage combined with Traditional Chinese Medicine soaking therapy in the treatment of hand-foot syndrome caused by oral administration of capecitabine in a patient with colorectal cancer, and summarized ...
LI Xiaomin (李晓敏)   +1 more
doaj   +1 more source

一体化锅炉水处理剂的制备及性能研究

open access: yesGongye shui chuli, 2004
利用自制SW-56共聚物,复配有机磷酸盐和焦亚硫酸钠除氧剂及消泡剂,成功制备XF-4一体化锅炉水处理剂。对XF-4锅炉水处理剂的阻垢、缓蚀进行了试验研究,表明其具有优良的阻垢能力,可以明显抑制热水锅炉积垢现象;加入改性除氧剂能降低锅炉水中溶解氧的含量,使腐蚀控制较理想;配方中的消泡剂组分可防止锅炉水表面起泡,抑制高悬浮物下的携带作用。
林凡, 万小芳, 肖锦
doaj   +2 more sources

新型有机硅乳液消泡剂的制备

open access: yesGongye shui chuli, 2010
以端烯丙基聚氧烯醚、低含氢硅油为原料,氯铂酸为催化剂进行接枝改性,获得聚醚改性聚硅氧烷;再复配硅膏增效,筛选合适的助乳化剂制备新型高效的有机硅乳液消泡剂,并对其性能进行了对比论证。
胡廷   +5 more
doaj   +2 more sources

ZnO压敏陶瓷制造用有机原材料的选择及优化应用(续)

open access: yesDianci bileiqi, 2007
(接《电瓷避雷器》2007年第3期第46页)2分散剂分散剂是一种表面活性剂,为了便于理解分散剂的作用原理,首先介绍有关表面活性剂的理化性能,然后介绍适合于氧化锌浆料制备的表面活性剂,包括分散剂、消泡剂等。
王振林
doaj  

MBR膜增效剂在膜生物反应器中的应用

open access: yesGongye shui chuli, 2012
为减缓MBR膜污染进程并维持膜通量,采用MBR膜增效剂MPE30改善MBR系统的运行性能.现场试验结果表明:MPE30具有提高临界通量、降低操作压差、改善出水水质、提高系统抗冲击性能等作用,同时对于消除泡沫、提高污泥脱水性能也有一定效果.
肖立光   +8 more
doaj   +2 more sources

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