CN102660320B - Antichlor and preparation method thereof - Google Patents

Antichlor and preparation method thereof Download PDF

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CN102660320B
CN102660320B CN 201210157382 CN201210157382A CN102660320B CN 102660320 B CN102660320 B CN 102660320B CN 201210157382 CN201210157382 CN 201210157382 CN 201210157382 A CN201210157382 A CN 201210157382A CN 102660320 B CN102660320 B CN 102660320B
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agent
amine
oil
dechlorination
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CN102660320A (en )
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王春柱
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金浦新材料股份有限公司
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Abstract

本发明涉及一种脱氯剂,属于精细化工技术领域。 The present invention relates to a dechlorination agent, belonging to the technical field of fine chemicals. 本发明的脱氯剂,包括20~40wt%脂肪胺、30~50wt%脂环胺和10~30wt%醇胺。 Dechlorinating agent of the present invention, comprising 20 ~ 40wt% fatty amine, 30 ~ 50wt% cycloaliphatic amines and amine 10 ~ 30wt% alcohol. 取上述原料混合均匀后,过滤除去杂质,即得。 After the raw materials uniformly mixing the above filtration to remove impurities, that is, too. 本发明的脱氯剂一种水溶性助剂,与电脱盐介质相容性好,对常减压装置电脱盐脱后盐含量有增效作用,对于装置三塔顶排水及石脑油氯离子浓度脱除效果尤为明显,能有效提高装置设备的抗腐蚀能力,延长开工周期,且操作简单、成本低、装置的经济效益显著。 Dechlorinating agent a water-soluble additive of the invention, the electrically good compatibility with the medium desalting, salt content synergism of desalted crude oil distillation unit is electrically off, means for drainage and three overhead naphtha chloride removal is especially effective concentration, can effectively improve the corrosion resistance of the plant equipment, extended operating period, and the operation is simple, low cost, significant economic means.

Description

脱氯剂及其制备方法 Dechlorinating agent and preparation method

技术领域 FIELD

[0001] 本发明涉及一种脱氯剂,属于精细化工技术领域。 [0001] The present invention relates to a dechlorination agent, belonging to the technical field of fine chemicals.

背景技术 Background technique

[0002] 常减压装置在炼油装置中占据了主导地位,原料油经过换热后进入电脱盐工序水洗破乳脱盐,经常、减压蒸馏得到轻石脑油、汽油、柴油和重质油。 [0002] In the refinery crude oil distillation unit to occupy a dominant position in the feedstock oil after the heat exchanger into the water washing step of breaking the electric desalting desalted often, vacuum distillation light naphtha, gasoline, diesel oil and heavy oil. 原油是由95%以上的碳、氢化合物混合而成,其余的5%为硫、氯、氮及金属元素构成的有机及无机杂元素化合物,此类化合物含量虽少却影响着整个炼油厂的工艺及产品质量。 Crude oil is a mixture of 95% or more of carbon, hydrogen compounds from the remaining 5% is configured to sulfur, chlorine, nitrogen, and organic and inorganic metal elements hetero element compound, the content of such compounds for the small but affect the entire refinery process and product quality. 从腐蚀与防腐蚀的角度来分析,原油中含的这些杂质有的本身就是腐蚀性介质,如硫化氢、元素硫、硫醇、有机酸等,有的在加工过程会转化为腐蚀性介质,如无机盐的水解:MgCl2+H20=Mg(0H)2+2HCl,CaCl2+H20=Ca (OH) 2+2HCl,等。 Corrosion and corrosion from the perspective, these impurities contained in the crude oil itself, some corrosive media, such as hydrogen sulphide, elemental sulfur, thiols, organic acids, and some will be converted to corrosive media in the process, inorganic salts such as hydrolysis: MgCl2 + H20 = Mg (0H) 2 + 2HCl, CaCl2 + H20 = Ca (OH) 2 + 2HCl, and the like.

[0003] 此外,原油中除无机氯化物还含有一些有机氯化物,已经发现的有机氯化物有三氯甲烷、四氯化碳、四氯乙烷、氯化苯等数十种氯化烃,其中有的是原油中固有的,有的则是采油过程加入的清蜡剂、输送过程的清洗剂,它们在常压蒸馏过程大约有30%左右被分解成HC1。 [0003] Further, in addition inorganic chlorides crude oil also contains some organic chloride, the organic chloride has been found that chloroform, carbon tetrachloride, tetrachloroethane, chlorinated benzene and the like dozens of chlorinated hydrocarbons, wherein some inherent oil, some oil is added during the wax agent, cleaning agent delivery process, which is approximately 30% HC1 to decompose during atmospheric distillation.

[0004]目前大多数炼油厂采用二级脱盐工艺,个别厂已采用三级脱盐工艺,使脱后原油含盐达到石化企业规定标准一小于3mgNaCl/L。 [0004] Most refineries desalination process using two, three individual plant desalination process have been used, so that after the removal of crude salt petrochemical companies reached a predetermined standard of less than 3mgNaCl / L. 但是在这里需说明一点,即目前的脱盐工艺仅仅是脱除原油中可溶于水的无机盐类,由于其中以碱金属及碱土金属的氯化物为主,故将氯化钙、氯化镁和氯化钠均换算为氯化钠含量并以mgNaCl/L表示,但其中的盐并不一定都是氯化物,也可能是硫酸盐,碳酸盐和石油酸盐,如已发现在新疆及华北一些原油中含有较高的石油酸钙,而氯化物也不一定都是无机氯化物,如前所述原油中还含有氯代烃,这些有机金属化合物和氯代烃,目前的脱盐工艺是不能将其脱除的,它们将带入常压塔,金属盐类将浓缩于渣油中,而氯代烃`及硫化物则部份分解进入塔顶镏分而造成腐蚀。 However, it should be noted here that the current desalination processes merely remove the oil-based water-soluble inorganic salt, wherein due to the chlorides of alkali and alkaline earth metals mainly, it will be calcium chloride, magnesium chloride, and content of sodium chloride were converted to and expressed in mgNaCl / L, but are not necessarily a chloride salt, it may be sulfates, carbonates and salts of oil, as it has been found in several North and Xinjiang crude oil contains high calcium, and chloride are not necessarily inorganic chlorides, as described above crude oil also contains chlorinated hydrocarbons, such organometallic compounds and chlorinated hydrocarbons, the current desalination processes can not be their removal, they will be brought into the atmospheric tower resid metal salts in the concentrate, whereas the chlorinated hydrocarbon sulfide partial exploded 'and into the overhead caused by corrosion distillates.

[0005] 硫及氯存在下会产生H2S+HC1+H20腐蚀,该H2S+HC1+H20腐蚀无论是一般碳钢或合金钢都造成明显腐蚀,特别是高浓度下两者起到加速作用。 [0005] The presence of sulfur and chlorine produces corrosion H2S + HC1 + H20, H2S + HC1 + H20 the corrosion of carbon steel or alloy steel is generally either have caused significant corrosion, especially both accelerate through at a high concentration. 装置低温部位常常出现腐蚀穿孔,严重影响安全生产。 Cryogenic parts often occur perforation corrosion, seriously affecting the safety in production. 通过加注中和缓蚀剂可以降低腐蚀速率,但不能从根本上解决腐蚀问题,此外由于有机氯进入塔顶镏分直接造成石脑油产品氯含量超标,因此采取有效的方式降低或脱除原油中的有机氯以满足装置的高效、平稳和长周期运行要求是急待解决难题。 Can be reduced by filling the corrosion inhibitor and corrosion rates, but can not solve the fundamental problem of corrosion, since the addition of organic chlorine into the overhead product of naphtha distillates directly caused by excessive chlorine content, and therefore effective way of reducing or removing crude organochlorine to meet efficient, stable and long term operation of the apparatus required is the problem need to be solved.

[0006] 现有技术中关于脱氯剂的介绍:CN101724435介绍了一种油品或气体的脱氯方法,该方法包括将含氯油品或气体先通入一个装有未达到吸附饱和的脱氯剂床层的上游脱氯罐,再通过一个与上游脱氯罐串连并装有新脱氯剂的下游脱氯罐,该法可有效利用脱氯剂的吸附氯容,使其达到或接近饱和氯容,从而大幅提高脱氯剂的利用率;CN1539921介绍了一种多功能脱氯剂,该脱氯剂是一种多元复合物,其中含0-30质量%的粘结剂,5-20质量%的分子筛,30-90质量%的碱金属-碱土金属氧化物,1-5质量%的增效剂,该脱氯剂经预处理、共浸溃、捏合、成型、焙烧等一系列工序制得,同时具有脱氯、脱硫、脱氮等多种功能,可在较宽温度范围内(100-550°C )范围内脱除氯化氢气体(< lyg/g)。 [0006] The prior art describes on dechlorination agent: CN101724435 describes a process for dechlorination or gas oil, which comprises the chlorine-containing gas is first introduced into the oil or with a non-adsorptive saturation de dechlorination chlorine agent tank upstream bed, then through a series of upstream and downstream tank dechlorination dechlorination tank containing a new dechlorination agent, the method can effectively utilize dechlorination agent chlorine adsorption capacity, or to reach chlorine content close to saturation, thus greatly improving the utilization of dechlorination agent; CN1539921 describes a multifunctional dechlorination agent, the dechlorinating agent is a polyhydric compound, which contains 0-30% by mass of binder, 5 20% by mass of the molecular sieve, 30-90% by mass of alkali metal - alkaline earth metal oxide, 1-5% by mass of the synergist, the dechlorination agent pretreatment, co-dipping, kneading, molding, baking, etc. a series of processes in the system, also has a variety of functions dechlorination, desulfurization, denitrogenation, hydrogen chloride gas may be removed (<lyg / g) within the (100-550 ° C) range over a wide temperature range. 列举的两种现有技术均为固体脱氯剂为干法脱氯,需要增加干法脱氯吸附设备且脱后的固体脱氯剂需要进一步处理,仅适用于气态或低粘度的液态石油产品类,对于原油这类常温下高粘度无法实现运行操作。 Two prior art are exemplified dechlorinating agent is a dry solid dechlorination is necessary to increase the dry dechlorination adsorption apparatus and the solid removal dechlorination agent after further processing, only for low viscosity liquid or gaseous petroleum products category for the high-viscosity oil such normal running operation can not be achieved.

发明内容 SUMMARY

[0007] 本发明提供一种脱氯剂及其制备方法,使能有效脱除原油中的有机氯,提高装置设备的抗腐蚀能力,并且工艺简单、成本低。 [0007] The present invention provides a method for preparing and dechlorination agent, so that oil can effectively remove the organic chlorine, improve the corrosion resistance of the device apparatus, and the process is simple, and low cost.

[0008] 本发明的脱氯剂尤其适用于石油工业中的常减压装置电脱盐工序,也可用于常减压装置塔顶注水中或其它石油加工装置的塔顶注水中。 [0008] The dechlorination agent of the present invention is particularly suitable for the petroleum industry crude oil distillation unit is electrically desalting step, it can also be used in a crude oil distillation unit overhead water overhead water or other petroleum processing apparatus.

[0009] 本发明的脱氯剂,包括20~40wt%脂肪胺、30~50wt%脂环胺和10~30wt%醇胺。 [0009] dechlorinating agent of the present invention, comprising 20 ~ 40wt% fatty amine, 30 ~ 50wt% cycloaliphatic amines and amine 10 ~ 30wt% alcohol.

[0010] 作为本发明的优选方案,原料配比为:30~40wt%脂肪胺、40~50wt%脂环胺和15~30wt%醇胺。 [0010] As a preferred embodiment of the present invention, the raw material ratio of: 30 ~ 40wt% fatty amine, 40 ~ 50wt% cycloaliphatic amines and amine 15 ~ 30wt% alcohol.

[0011] 所述脂肪胺选自二异丙胺、异丁胺、乙二胺、1,2-丙二胺中的一种或两种以上任意比例的混合物,优选为二异丙胺和/或1,2-丙二胺。 [0011] The aliphatic amine is selected from diisopropylamine, isobutylamine mixture in any ratio, ethylenediamine, 1,2-propanediamine in one or more, preferably diisopropylamine and / or 1 , 2-propanediamine.

[0012] 所述脂环胺选自吗啉、哌嗪、环己胺中的一种或两种以上任意比例的混合物,优选为吗啉和/或环己胺。 [0012] The alicyclic amine is selected from morpholine, piperazine, mixtures thereof in any ratio cyclohexylamine one or more, preferably morpholine and / or cyclohexylamine.

[0013] 所述醇胺选自一乙醇胺、二乙醇胺、三乙醇胺中的一种或两种以上任意比例的混 [0013] The alkanolamine is selected from monoethanolamine, diethanolamine, triethanolamine, one kind or two or more in any mixing ratio

合物,优选一乙醇胺和/或二乙醇胺。 Thereof, preferably monoethanolamine and / or diethanolamine.

[0014] 本发明脱氯剂的制备方法为:将脂肪胺、脂环胺和醇胺混合均匀,然后过滤除去杂质,即得。 [0014] A method for dechlorination agent of the present invention is to: aliphatic amines, cycloaliphatic amines and amine alcohols mixed, then filtered to remove impurities, that is, too.

[0015] 本发明所得油品脱氯剂为一种水溶性产品,直接加入到常减压电脱盐水洗注水中,在水中分散性优良,应用上述油品脱氯剂时,添加量为常减压电脱盐加工原料油重量的10~100 μ g/g,优选为15 — 60 μ g/g,最优选为20~30 μ g/g。 [0015] The resulting oil dechlorinating agent of the present invention is a water-soluble product, were added directly to the crude oil distillation desalter wash water, the excellent dispersibility in water, applying the oil dechlorination agent, usually added in an amount Save 10 ~ 100 μ g piezoelectric desalted by weight of processing oil feedstock / g, preferably 15 - 60 μ g / g, and most preferably 20 ~ 30 μ g / g.

[0016] 原料油所含的水溶性氯助剂在原油电脱盐脱水时已被除去,而油溶性含氯助剂仍然残留在原油中。 [0016] chloro-soluble additives contained in the feedstock oil has been removed in the desalting crude oil dehydration, the oil-soluble chlorine-containing additives in the crude oil still remains. 原油中的有机氯化物在原油常减压蒸馏过程中,在高温和水蒸气的作用下会分解成氯化氢,进入常顶和减顶冷凝水,造成设备腐蚀,这部分有机氯化物必须通过在电脱盐脱水时注入脱氯剂方可除去。 Crude organic chloride in the crude oil atmospheric and vacuum distillation, and steam under heat may decompose into hydrogen chloride, into the top Save Overhead condensate and cause corrosion of equipment, which must be part of the organic chloride in the electric dechlorinating agent injection only removed when the desalting and dewatering. 本发明合成的脱氯剂可以与原油中的有机氯代烷烃通过分子间的作用,将油溶性小分子有机氯转化为水溶性氯化物,通过常减压电脱水洗转移至水相而将其脱出。 Dechlorinating agent of the present invention may be synthesized crude organic chlorinated paraffins by interaction between molecules, oil-soluble small molecule organochlorine is converted to water soluble chloride, is transferred through atmospheric and vacuum dehydration electrically to wash the aqueous phase to prolapse. 其反应原理为:由于有机氯代烷烃不溶于(或微溶于)水,利用脱氯剂与卤代烃能发生取代反应,卤代烷中的卤素容易被一0H、一0R、一CN、NH3或H2NR取代,生成相应的醇、醚、腈、胺等水溶性化合物,以实现脱除的目的。 Reaction principle is: the organic chloroalkanes insoluble (or sparingly soluble) in water, using a halogenated hydrocarbon dechlorinating agent capable of undergoing a substitution reaction with alkyl halide in a readily 0H halogen, a 0R, a CN, NH3, or H2NR substituted, water-soluble compound generate the corresponding alcohols, ethers, nitriles, amines and the like, in order to achieve the purpose of removal.

[0017] 本发明产品具有性能稳定、在原料油中溶解性能优越、分散性能好等优点,且与有机氯代烷烃结合稳定性好。 [0017] The present invention products with stable performance, excellent dissolution properties, good dispersibility, etc. in the feedstock oil, and the combined organic chlorinated alkanes with good stability.

[0018] 经过500万吨/年常减压装置工业化试验,试验结果表明本发明在原料油有机氯含量在10至100 μ g/g的情况下,可以保证装置进入常顶和减顶冷凝水的氯含量脱除率达到80%至90%。 [0018] after 500 tons / year of crude oil distillation unit industrial test, the test results show that the present invention is in the case where the raw material oil an organic chlorine content of 10 to 100 μ g / g, the apparatus can enter to ensure constant and Top condensate Save chlorine content removal rate of 80-90%. 在常减压装置电脱盐注水中添加本发明,可以提高装置设备的抗腐蚀能力,延长开工周期,操作简单、助剂成本低、装置的经济效益显著。 The present invention was added in the water desalting crude oil distillation apparatus, the apparatus can improve the corrosion resistance of the device, to extend the operating cycle, simple operation, low cost aids, means the substantial economic benefits. 具体实施方式 detailed description

[0019] 下面结合实施例进一步说明本发明的内容。 [0019] The following examples further illustrate embodiments in conjunction with the present invention.

[0020] 实施例1 [0020] Example 1

[0021] 先将100g—乙醇胺加入到三口瓶中,然后加入200g 二异丙胺和200g吗啉,在常温、常压下搅拌30min后,过滤除杂质即得脱氯剂A。 [0021] After the first 100g- ethanolamine was added to the three-necked flask, followed by addition of 200g 200g morpholine and diisopropylamine, was stirred at ambient temperature and pressure 30min, filtered to remove impurities to give the dechlorination agent A.

[0022] 实施例2 [0022] Example 2

[0023] 先将100g 二乙醇胺加入到三口瓶中,然后加入200g 二异丙胺、100g吗啉和200g哌嗪,在常温、常压下搅拌30min后,过滤除杂质即得脱氯剂B。 After [0023] 100g of diethanolamine was added to the first three-necked flask, followed by addition of diisopropylamine 200g, 100g and 200g morpholine piperazine, was stirred at ambient temperature and pressure 30min, filtered to remove impurities to give the dechlorinating agent B.

[0024] 实施例3 [0024] Example 3

[0025] 先将100g三乙醇胺加入到三口瓶中,然后加入200g 1,2_丙二胺、20(^环己胺,在常温、常压下搅拌30min后,过滤除杂质即得脱氯剂C。 [0025] After the first three 100g triethanolamine was added to the flask, followed by addition of 200g 1,2_-propanediamine, 20 (^ cyclohexylamine, stirred at normal temperature and pressure 30min, filtered to remove impurities to give the dechlorination agent C.

[0026] 实施例4 [0026] Example 4

[0027] 先将50g—乙醇胺和100g 二乙醇胺加入到三口瓶中,然后加入100g 二异丙胺、150g 1,2-丙二胺和150g哌嗪,在常温、常压下搅拌30min后,过滤除杂质即得脱氯剂D。 [0027] After the first 50g- 100g ethanolamine and diethanolamine was added to a three-necked flask, followed by addition of diisopropylamine 100g, 150g and 150g 1,2-propanediamine, piperazine, was stirred at ambient temperature and pressure 30min, filtered to remove D. impurity obtain antichlor

[0028] 表1实施例产品典型性能参数 [0028] Table 1 Example Product performance parameter exemplary embodiment

[0029] [0029]

Figure CN102660320BD00051

[0030] 脱氯剂评价实验:采用行业内通用的原油评价电脱盐模拟小试装置,来模拟石油工业中的常减压装置电脱盐工序。 [0030] Evaluation test dechlorinating agent: Evaluation using a common electrical industry crude oil desalting pilot plant simulation, to simulate a crude oil distillation unit is electrically desalting step in the petroleum industry. 使用设备SH-1I型电脱盐试验仪以静态电场法进行筛选和评价。 Screening and evaluation method using a static electric field type electrical device SH-1I desalting tester. 实验使用的原油主要性质见表2: The main properties of the crude oil used in the experiment are shown in Table 2:

[0031] 表2实验用原油主要性质 [0031] Table 2 Experiment with the main properties of crude

[0032] [0032]

Figure CN102660320BD00052

[0033] 具体测试步骤如下:[0034] 1.取油样放入70~90°C的恒温水浴中,保温预热Ih,倒入到高速混调器(PHILIPSHR1704型搅拌机),加入6wt%的水,通过控制搅拌速度和搅拌时间调节乳化强度,转速从2000~15000r/min,搅拌时间为6s。 [0033] The specific procedure is as follows: [0034] 1. The oil sample placed in a thermostatic water bath at 70 ~ 90 ° C, and incubated Ih is warm, was poured into a high speed mixer-conditioner (PHILIPSHR1704-blender), 6wt% of the added water, by controlling the stirring speed and stirring time adjustment emulsification strength, speed from 2000 ~ 15000r / min, the stirring time was 6s.

[0035] 2.将混合好的油样倒入电脱盐器中,把预先配制好的破乳剂分别加入电脱盐器。 [0035] 2. The sample was poured into the mixed oil desalter vessel, the pre-preparation of a good electrical demulsifiers are added to desalter.

[0036] 3.待电脱盐试验仪温度升到130°C后,将电脱盐器放入油浴中盖上盖子,启动预热开关,听到蜂鸣声后取出上下摇动100次。 After [0036] 3. When the temperature was raised to electrically desalting tester 130 ° C, the electrical desalter placed in an oil bath capped preheating start switch, hear a buzzing sound extraction shaken up and down 100 times.

[0037] 4.将搅拌后电脱盐器重新放入油浴盖上盖子,打开电源启动工作按扭,进行低、高压脱盐(强电场850V/cm,2min,弱电场350V/cm, 3min,沉降15min)。 [0037] 4. After stirring for desalting re-placed in an oil bath and close the lid, open the power button to start the work, low, high pressure desalting (strong electric field 850V / cm, 2min, weak electric field 350V / cm, 3min, sedimentation 15min).

[0038] 5.听到报警声后,关掉电源开关,取出电脱盐器。 After [0038] 5. hear the alarm sound, turn off the power switch, remove the electrical desalter.

[0039] 6.将取出的电脱盐器冷却至60~70°C,打开下端微型开关放出水,然后放出脱盐后水洗水及原油进行分析。 [0039] 6. Remove the desalting cooled to 60 ~ 70 ° C, the micro switch open lower discharge water, and then washed with desalted water release and oil were analyzed.

[0040] 7.取步骤6处理后的水洗脱盐后的原油样品,再进行步骤I的操作,然后将混合好的油样倒入电脱盐器中,把实施例脱氯剂A、B、C、D分别加入电脱盐器,再进行步骤3至6的操作。 [0040] 7. The washing step 6 after taking the sample after the processing of crude oil desalting, and then the operation of step I, and then the mixed sample is poured into an electrical oil desalter, the embodiment dechlorinating agent A, B, C , D desalting were added to further carry out steps 3 to 6.

[0041] 测试结果见表3: [0041] Test results are shown in Table 3:

[0042] 表3脱氯剂试验评价结果 [0042] Table 3 Evaluation of Test Results Antichlor

[0043] [0043]

Figure CN102660320BD00061

[0044] 由表3的测试结果可以看出在注水中添加脱氯剂后,排水中的氯含量显著增加,且随着脱氯剂添加量的增加排水中氯含量增大,当增加到一定量后排水中氯含量趋于稳定,说明针对加工原油性质不同,油品脱氯剂添加量在一定的区间才能保障最佳的作用。 After [0044] From the test results of Table 3 it can be seen dechlorination agent added in the water, the chlorine content is a significant increase in the drain, and with the increase of the amount of dechlorination agent added drainage chlorine content increases, to a certain amount when the chlorine content in water to stabilize the back, illustrate the different nature of crude oil for processing, the optimum amount of oil added effect dechlorination agent in order to guarantee a certain range. [0045] 将实施例3所述油品脱氯剂C在某炼油厂500万吨/年常减压装置进行工业应用实验,加入时间共计30天,加入量为30 μ g/g (相对于原料)。 [0045] The industrial application experiments in a refinery 5,000,000 tons / year crude oil apparatus of Example 3 dechlorination agent C, and a total time of 30 days, was added in an amount of 30 μ g / g (relative to the raw material). 使用期间,装置的其它主要操作参数及原料性质保持不变。 During use, the other main operating parameters and material properties of the device remains unchanged. 使用本发明前后脱前装置三塔顶排水及石脑油氯离子浓度见表4。 Before and after removal apparatus of the present invention before and three drainage overhead naphtha chloride ion concentrations shown in Table 4.

[0046] 表4试验前与试验后三塔顶排水及石脑油氯氯离子浓度 [0046] Table 4 before the test and three drainage overhead naphtha chloride and the chloride ion concentration after the test

[0047] [0047]

Figure CN102660320BD00071

[0048] 从三顶排水和石脑油氯离子浓度看,试验前与试验后比较,初顶、常顶、减顶和石脑油分别下降了72%、56%、54%、85%,效果明显,从侧面反映了脱氯剂的脱氯效果。 [0048] Drainage and naphtha from the three look chloride ion concentration, compared with before the test after the test, the beginning of the top, Overhead, Save naphtha decreased and the top 72%, 56%, 54%, 85%, effect is obvious, from the reflection of dechlorination dechlorination agent.

[0049] 综上所述,本发明的油品脱氯剂效果明显,能有效地降低常减压装置电脱盐后盐含量,对于装置三塔顶排水及石脑油氯离子浓度脱除效果尤为明显。 [0049] In summary, the effect of oil dechlorinating agent of the present invention is significantly, can effectively reduce the salt content of the desalted crude oil distillation unit power, means for drainage and three overhead naphtha concentration of chloride ion removal efficiency is particularly obvious.

Claims (5)

  1. 1.一种脱氯剂,其特征在于,包括30~40wt9ag肪胺、40~50wt9ag环胺和15~30wt%醇胺;所述脂环胺选自吗啉、哌嗪、环己胺中的一种或两种以上以任意比例组成的混合物;所述脂肪胺为二异丙胺和/或1,2-丙二胺。 A dechlorination agent, characterized by comprising 30 ~ 40wt9ag fatty amine, 40 ~ 50wt9ag cyclic amines and 15 ~ 30wt% alkanolamine; said alicyclic amine is selected from morpholine, piperazine, cyclohexylamine in consisting of a mixture in any proportion of one or two or more thereof; said aliphatic amine is diisopropylamine and / or 1,2-propylenediamine.
  2. 2.如权利要求1所述的脱氯剂,其特征在于,所述脂环胺为吗啉和/或环己胺。 2. The dechlorinating agent according to claim 1, wherein the cycloaliphatic amine is morpholine and / or cyclohexylamine.
  3. 3.如权利要求1所述的脱氯剂,其特征在于,所述醇胺选自一乙醇胺、二乙醇胺、三乙醇胺中的一种或两种以上以任意比例组成的混合物。 Dechlorinating agent according to claim 1, characterized in that, monoethanolamine, diethanolamine, consisting of a mixture in any proportion triethanolamine one or two or more of said alkanolamine is selected.
  4. 4.如权利要求3所述的脱氯剂,其特征在于,所述醇胺为一乙醇胺和/或二乙醇胺。 4. dechlorinating agent according to claim 3, wherein said alkanolamine is monoethanolamine and / or diethanolamine.
  5. 5.权利要求1至4中任一项所述脱氯剂的制备方法,其特征在于,将脂肪胺、脂环胺和醇胺混合均匀,然后过滤除去杂质,即得。 Preparation of 1 to 4 dechlorinating agent according to any one of claim 1, wherein the aliphatic amine, cycloaliphatic amine and alkanolamine uniformly mixed, then filtered to remove impurities, that is, too.
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CN102127464A (en) 2009-10-22 2011-07-20 中国石油化工股份有限公司 Method for removing organochlorine from hydrocarbon oil

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