共查询到18条相似文献,搜索用时 62 毫秒
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本文介绍了油页岩干馏工艺污水处理技术,总结了该系列污水处理技术的原理、流程和特点,该技术是在现行煤焦化行业污水处理技术的基础上,针对油页岩干馏工艺产生污水的特点,进行改进和发展,形成了适合油页岩干馏污水处理的特有技术,目前在油页岩干馏行业成功应用。 相似文献
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油页岩地面干馏技术研究 总被引:2,自引:0,他引:2
近年来,随着国际石油供求矛盾的不断突出和石油价格的居高不下,油页岩资源逐渐引起了众多科研人员的青睐.油页岩是一种重要的非常规油气资源.世界油页岩分布范围广,储量十分丰富,其探明可采储量如果折算成页岩油,数倍于世界原油的探明储量.页岩油作为石油的一种理想替代品,进行油页岩制油技术的研究不仅蕴含巨大的商业利益和经济价值,对国家安全和能源战略也具有十分重要的意义.油页岩制取页岩油的技术可分为地面干馏技术和原位开采技术.地面干馏技术的工艺和设备发展比较成熟,也是目前制取页岩油最主要的途径.根据颗粒粒度的大小又可分为块状干馏技术和小颗粒干馏技术.着重介绍的块状油页岩干馏技术有抚顺炉技术、Kiviter技术和Petrosix技术,小颗粒干馏技术有Tosco-Ⅱ技术、ATP 工艺和Enefit-280工艺等.最后指出了油页岩地面干馏技术的发展趋势. 相似文献
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采用缺氧/好氧-膜生物反应器(A/O-MBR)工艺处理油页岩干馏废水,考察了启动期反应器中COD和NH4+-N的去除情况,探讨稳定期污泥混合液回流比、碳氮比和进水方式对COD、NH4+-N、TN去除效果的影响。结果表明,混合液回流比为300%~700%,TN去除率由87.67%提高至95.99%,但混合液回流比提高至900%时,其对废水处理效果影响不大。废水COD和TN的去除率随进水碳氮比的升高而提高,碳氮比由3提高至8,COD和TN的去除率分别由91.39%、82.81%提高至96.33%、92.21%。进水碳氮比为3,采用分段进水,废水TN去除率为90.05%,可提高废水处理效果。 相似文献
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Norman C. Watson 《Fuel》1984,63(10):1455-1458
A precise method for the assay of oil shales requiring only 10 g of shale per assay has been developed by modifying the Gray-King technique for the carbonization assay of coals. The precision of the method is illustrated by results obtained for a Queensland (Julia Creek) oil shale. Twelve sub-samples were assayed at 520 °C to give a mean oil yield of 6.77% with a standard deviation of 0.09%. At 500 °C the mean oil yield was 6.73% and the standard deviation 0.10%. Repetitive assays by the Fischer method yielded a mean oil value of 5.71% with a standard deviation of 0.06%. Significant departures from the Gray-King method include the use of an inert carrier gas to remove the pyrolysis products as they are formed, a more efficient condensate trapping system and an accurate method of measuring the water content. Separation of the water from the oil is the most critical part of the assay. Repeatable results can be obtained when boiling times are extended and the water retained on the condenser walls is collected. Assays can be conducted on the same-sized samples as used for chemical analysis, so that correlations can be attempted with greater confidence. 相似文献
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A / O-MBR 工艺处理油页岩干馏废水的试验研究 总被引:3,自引:0,他引:3
为了摸索适合油页岩干馏废水水质特点的处理工艺,提出了“混凝沉淀-溶气气浮-A/O-MBR-纳滤”的处理工艺流程,并进行相关试验研究。在系统稳定运行后,经过优化调整工艺参数,CODCr BOD5、NH3-N、石油类的去除率分别达到97.7%、98.2%、99.2%、99.3%,不计人工费的吨水处理运行费用约为7.6元,出水水质符合GB8978--1996《污水综合排放标准》中石油炼化行业二级排放标准的要求,运行成本经济可行,说明该工艺处理油页岩干馏废水是切实可行的。 相似文献
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通过逐级酸洗脱除新疆太姥油页岩中的碳酸盐和硅酸盐矿物,采用铝甑炉对油页岩原样和脱矿样进行热解,分析油气产物的组成性质,基于产物产率和性质考察了固有矿物质对油页岩热解的影响。结果表明,碳酸盐能促进热解生油,且使页岩油中含氮、氧化合物含量增大,硅酸盐则抑制热解生油,并抑制含氧化合物的生成,二者均使页岩油的H/C降低。硅酸盐可促进烷基自由基与氢自由基的结合,使页岩油中烷烃含量升高、烯烃含量降低,且使H2产率减小,并能催化长链脂肪烃的裂解,使页岩油中长链烃含量降低、短链烃含量升高,且使烃类气体产率增大,而碳酸盐则抑制自由基的结合和长链脂肪烃的裂解。 相似文献
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Pooled Fischer assay samples of shale oil from two seams in the oil shale deposit at Rundle, Queensland, were chemically separated into ten fractions and analysed by gas chromatography-mass spectrometry. Over 500 compounds were identified, including homologous series of straight-chain alkanes, 1-, 2- and 3-alkenes, nitriles, methyl ketones, amides and substituted cyclopentanes, cyclohexanes, benzenes, naphthalenes, pyridines and quinolines. The oils are highly aliphatic in character (); alkanes (≈30 wt%) and alkenes (≈20 wt%) are the most abundant components in the oil, with the straight-chain alkanes and 1-alkenes predominating. The most highly aromatic fractions were found, by proton n.m.r., to be those which contain phenols and heterocyclic nitrogen compounds and which constitute less than 5% of the oil. Approximately half of the nitrogen in the shale oil was present as neutral nitrogen compounds such as aliphatic nitriles and amides. The carbon chain length distributions of the alkanes, nitriles and methyl ketones are bimodal indicating origins from both algal and higher-plant sources, with algal sources predominating. The pyrolytic origin of prominent and unusual components such as nitriles, amides, 1-alkenes and methyl ketones is discussed. This is the first detailed chemical analysis of an Australian shale oil. 相似文献
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