發(fā)布時(shí)間：2018-03-29 15:38

  本文選題：獨(dú)山子石化　切入點(diǎn)：水處理　出處：《石河子大學(xué)》2015年碩士論文

【摘要】：本論文緊密結(jié)合獨(dú)山子石化煉油新區(qū)生產(chǎn)實(shí)際,根據(jù)水質(zhì)特性,對(duì)緩蝕劑、阻垢劑進(jìn)行了篩選,并系統(tǒng)研究了緩蝕劑間、阻垢劑間的協(xié)同作用,利用各單劑間的協(xié)同效應(yīng)將多種緩蝕劑、阻垢劑進(jìn)行復(fù)配,優(yōu)化出了高效復(fù)合型緩蝕阻垢劑配方并進(jìn)行了性能評(píng)價(jià)。根據(jù)循環(huán)冷卻水中的狀況進(jìn)行了殺菌滅藻劑的篩選,進(jìn)而優(yōu)化了殺菌滅藻方案。循環(huán)冷卻水補(bǔ)水性質(zhì)分析表明,當(dāng)濃縮倍數(shù)為1時(shí),其穩(wěn)定指數(shù)為6.866,水質(zhì)具有腐蝕傾向,應(yīng)考慮加入緩蝕劑進(jìn)行處理;隨著濃縮倍數(shù)的逐漸增大,穩(wěn)定指數(shù)逐漸減小,當(dāng)濃縮倍數(shù)為4時(shí),穩(wěn)定指數(shù)下降為4.2,具有嚴(yán)重的結(jié)垢傾向,在進(jìn)行水處理藥劑的添加上需要同時(shí)考慮結(jié)垢和腐蝕。緩蝕劑、阻垢劑的篩選、相互作用研究表明,緩蝕單劑2-膦酰基-1,2,4三羧酸(PBTCA)相比于2-羥基膦�；宜�(HPAA)和羥基乙叉二膦酸(HEDP)具有更優(yōu)異的緩蝕性能。相比于單一緩蝕劑,PBTCA+乙酸鋅、HEDP+乙酸鋅、PBTCA+HEDP+乙酸鋅三元復(fù)配體系均呈現(xiàn)出優(yōu)異的緩蝕性能,復(fù)配體系呈現(xiàn)出極好的緩蝕協(xié)同性。阻垢單劑聚馬來酸酐(HPMA)、2-丙烯酰胺-2-甲基丙基磺酸(AMPS)的阻垢性能不如PBTCA。PBTCA與HPMA、PBTCA與AMPS兩兩之間存在明顯的阻垢協(xié)同效應(yīng),而AMPS與HPMA不存在協(xié)同效應(yīng)。通過正交實(shí)驗(yàn)優(yōu)化出的復(fù)合型緩蝕阻垢劑配方的組成為PBTCA 15 mg/L、HEDP 25mg/L、乙酸鋅2 mg/L及AMPS 25 mg/L,該配方的腐蝕率為0.0126 mm/a,緩蝕率為98.65%,阻垢率為93.52%。優(yōu)化配方的阻垢緩蝕性能優(yōu)異,且含磷含鋅量較低,屬于環(huán)保配方,性能指標(biāo)均滿足GB 50050-2007《工業(yè)循環(huán)冷卻水處理設(shè)計(jì)規(guī)范》的規(guī)定。殺菌滅藻劑的篩選和殺菌滅藻方案優(yōu)化的結(jié)果表明,在非氧化型殺菌滅藻劑中,異噻唑啉酮和復(fù)合型殺菌劑的殺菌效果要優(yōu)于季銨鹽,而異噻唑啉酮和復(fù)合殺菌的效果相差不大。氧化型殺菌滅藻劑次氯酸鈉的效果十分顯著。本文優(yōu)化出的殺菌滅藻劑與緩蝕阻垢劑有很好的相容性并且殺菌滅藻劑的加入對(duì)緩蝕阻垢劑的緩蝕阻垢效果沒有影響。殺菌滅藻方案優(yōu)化的結(jié)果是采取連續(xù)投加氧化性殺菌滅藻劑次氯酸鈉為主,并定期沖擊式加入非氧化性殺菌劑(復(fù)合殺菌劑和異噻唑啉酮交替使用)的殺菌滅藻方案。
[Abstract]:In this paper, based on the production practice of Dushanzi Petrochemical Refinery New area, corrosion inhibitor and scale inhibitor were screened according to the water quality characteristics, and the synergism between corrosion inhibitor and scale inhibitor was studied systematically. By using the synergistic effect of each single agent, several kinds of corrosion inhibitor and scale inhibitor were mixed, the formulation of high efficiency compound corrosion and scale inhibitor was optimized, and the performance evaluation was carried out. According to the condition of circulating cooling water, the fungicidal and algicide agent was screened. The rehydration property analysis of circulating cooling water shows that the stability index is 6.866 when the concentration ratio is 1, the water quality has corrosion tendency and should be treated with corrosion inhibitor. The stability index decreases gradually, when the concentration multiple is 4, the stability index decreases to 4.2, which has a serious scaling tendency. It is necessary to consider both scaling and corrosion in the addition of water treatment medicament. Interaction studies show that. Compared with 2-hydroxyphosphonyl acetic acid (HPAA) and hydroxyl ethyldiphosphonic acid (HEDPp), the corrosion inhibitor (2-phosphonyl group) has better corrosion inhibition properties than that of 2-hydroxyphosphonyl acetate (HPAA) and hydroxyl ethyldiphosphonic acid (HEDPDP). The system showed excellent corrosion inhibition performance. The scale inhibition performance of the compound system is not as good as that of PBTCA.PBTCA and HPMA-PBTCA and AMPS, and the scale inhibition is not as good as that of PBTCA.PBTCA and HPMA-2-methylpropyl sulfonic acid (AMPS), and the scale inhibition is not as good as that of HPMA-2-acrylamide-2-methylpropyl sulfonic acid (AMPS). There is no synergistic effect between AMPS and HPMA. The composition of compound corrosion and scale inhibitor optimized by orthogonal experiment is PBTCA 15 mg / L HEDP 25 mg / L, zinc acetate 2 mg/L and AMPS 25 mg / L, the corrosion rate is 0.0126 mm / a, the inhibition rate is 98.65 mm / a, and the scale inhibition rate is 93.52 mm 路L ~ (-1). The scale and corrosion inhibition performance of the chemical formulation is excellent. The phosphorus and zinc content is low, which belongs to the environmental protection formula, and the performance indexes all meet the requirements of GB50050-2007 < Design Code for Industrial circulating cooling Water treatment]. The results of screening of bactericidal and algicide agents and optimization of the scheme of bactericidal and algicide control show that, The bactericidal effect of isothiazolinone and compound fungicides is better than that of quaternary ammonium salt in non-oxidized bactericidal algaecide. However, the effect of isothiazolinone and compound bactericidal agent is not different. The effect of oxidized algaecide sodium hypochlorite is very remarkable. The optimized bactericidal algaecide has good compatibility with corrosion and scale inhibitor and bactericidal algicide. The result of optimization of bactericidal and algicide scheme is that sodium hypochlorite, an oxidizing bactericidal and algaicidal agent, is added continuously. In addition, non-oxidizing fungicides (compound fungicides and isothiazolinone alternately used) were added periodically.
【學(xué)位授予單位】：石河子大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TQ085.4;TE65

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本文編號(hào)：1681767