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供氢剂

供氢剂的相关文献在1991年到2022年内共计72篇,主要集中在石油、天然气工业、化学工业、化学 等领域,其中期刊论文55篇、会议论文2篇、专利文献667741篇;相关期刊26种,包括自然科学进展、林产化学与工业、中国石油大学学报(自然科学版)等; 相关会议2种,包括第七届全国高校化学工艺学术会议、中国化学会第六届应用化学学术会议等;供氢剂的相关文献由173位作者贡献,包括阙国和、王宗贤、石斌等。

供氢剂—发文量

期刊论文>

论文:55 占比:0.01%

会议论文>

论文:2 占比:0.00%

专利文献>

论文:667741 占比:99.99%

总计:667798篇

供氢剂—发文趋势图

供氢剂

-研究学者

  • 阙国和
  • 王宗贤
  • 石斌
  • 郭爱军
  • 文萍
  • 邓文安
  • 吕秀阳
  • 潘晶莹
  • 乔健鑫
  • 于熙洋
  • 期刊论文
  • 会议论文
  • 专利文献

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    • 何斌; 唐晓东; 秦光富; 李晶晶
    • 摘要: 针对稠油改质效果较差且易结焦等问题,提出了生物质裂解耦合稠油改质的新思路,考察了催化剂Fe_(2)O_(3)Al_(2)O_(3)对生物质(微晶纤维素和废纸屑)裂解行为、生物质裂解耦合稠油改质过程的影响。结果表明:以Fe_(2)O_(3)Al_(2)O_(3)作为催化剂,可以提高生物质裂解生物质油的产率,进一步降低改质稠油的黏度;在催化剂添加量(w)为0.4%(以稠油质量计)、反应温度为350°C、反应时间为30 min的条件下,纤维素、废纸屑裂解生物质油的产率分别为76.25%、65.26%。对于纤维素-稠油和废纸屑-稠油两种耦合体系,稠油改质后的降黏率分别达到74.14%和65.93%。改质前后稠油傅里叶变换红外光谱和族组成分析结果表明,耦合改质过程中,在生物质裂解产生的活性氢和Fe_(2)O_(3)共同作用下,稠油发生深度裂解,分子中C-C键和C-S键断裂,生成轻质组分。
    • 侯焕娣; 赵毅; 王子军; 代振宇; 权奕; 董明; 龙军
    • 摘要: 采用微型反应釜进行了模型化合物十二烷基芘的热转化、添加供氢剂四氢萘(THN)热转化及分散型催化剂(RDC-Mo)作用下的催化临氢热转化反应,考察了不同来源活性氢对十二烷基芘热转化反应的影响,并采用分子模拟对其作用机理进行了探索研究.结果表明:不同活性氢对十二烷基芘裂化反应的影响不同,供氢剂抑制缩合的同时也抑制裂化反应;分散型催化剂作用下的催化临氢热转化反应抑制缩合促进裂化,且显著提高烷基芳烃侧链在α位断裂选择性(提高43百分点).分子模拟探究其原因是,高分散度RDC-Mo催化剂活化氢气形成的活性氢更容易定向进攻十二烷基芘芳环与侧链相连碳(简称Ipso碳),促使侧链α位C—C键断裂能垒显著下降(129 kJ/mol),远低于侧链β位断裂能垒(>325 kJ/mol),从而显著促进裂化反应的同时提高侧链在α位断裂选择性;而供氢剂四氢萘最容易供出α位的氢与十二烷基芘Ipso碳存在很大空间位阻,不能实现定向加氢进而促进裂化,其主要作用是稳定体系中的自由基,抑制自由基链反应的传递.
    • 李立权; 陈崇刚; 赵颖; 李剑平; 杨强; 汪华林; 袁远平
    • 摘要: 生物原油(BCO)加氢提质生产燃料油技术(BTM)系由BCO加氢脱氧-加氢处理-加氢裂化耦合形成的成套工艺工程技术,以生物质热解液为原料,开发了BCO全混流沸腾床加氢脱氧(BDO)工艺工程技术、脱氧油(DOO)固定床加氢生产汽柴油(OTM)工艺工程技术、水热临氢还原沸腾床加氢反应器技术、BDO及OTM乳化反应产物分离工艺工程技术、DOO液相循环工艺工程技术和OTM得到的160~260°C轻柴油组分(OTM供氢剂)辅助深度脱氧技术等.集成开发的BTM加氢提质工艺工程技术,满足工业示范装置要求.
    • 牛毓; 王伟; 王兴; 舒畅; 王红
    • 摘要: 对催化裂化回炼油三段窄馏分的供氢能力进行测定,选取供氢能力最强的一段进行加氢处理,以加氢后的催化裂化回炼油窄馏分为焦化供氢剂,通过中型试验考察其供氢效果.结果表明:三段窄馏分中,小于400°C馏分供氢能力最强;加氢处理能够进一步提高其供氢能力,以加氢后回炼油小于400°C馏分作为供氢剂能够使液体收率提高1.32百分点,焦炭产率降低2.45百分点.%The hydrogen-donating indexes of the three narrow fractions of FCC recycle oil were measured.Among these fractions,the one which has the highest hydrogen-donating index was chosen to be used as hydrogen donor after being hydro-treated.The hydrogen-donating effect of the hydro-treated fraction was investigated in pilot tests.The results showed that the fraction(IBP-400 °C)has the best hydrogen-donating capacity among the three narrow fractions of FCC recycle oil,and the hydrogen-donating capacity can be further improved by hydrotreatment.When the fraction(IBP-400 °C)hydrotreated was used as hydrogen donor,the liquid yield can increase by 1.32% and coke yield can decrease by 2.45%.
    • 刘荣博; 陈松; 张海洪
    • 摘要: 在自建的延迟焦化中试装置上,考察了2种供氢剂的供氢能力及对延迟焦化反应产物分布的影响.结果表明:供氢剂A的供氢能力优于供氢剂B及减压渣油;夺氢能力低于供氢剂B及减压渣油;氢转移指数高于供氢剂B.添加供氢剂后,产物分布发生变化,产物中石油焦和尾气收率均降低.添加供氢剂A后,产物液体收率提高1.85个百分点;石油焦收率降低1.09个百分点,尾气收率降低0.75个百分点.
    • 龚旭; 薛鹏; 刘贺; 陈坤; 郭爱军; 王宗贤
    • 摘要: 重油高黏度和高密度的特点给重油开采、集输和加工带来极大不便,一般都要先对其进行降黏处理.供氢热裂化是在传统减黏裂化基础上加入供氢剂,以改善减黏裂化加工深度不大、装置易生焦、产品安定性差等问题的一种高效重油改质降黏技术.文章首先介绍了重油管输技术基本类型,然后从供氢剂的供氢机理、供氢剂加入的作用、供氢剂的基本类型、供氢剂可供氢量的计算方法和供氢剂的运用等方面进行了综述.对于供氢剂的选择需要根据工艺条件和供氢剂性质等方面综合分析.指出在不生焦的前提下,尽可能提高改质苛刻度可有效提升重油改质效果,而影响生焦和抑制结焦的关键在于来自供氢剂的活泼氢能否及时封闭沥青质自由基.%Due to high viscosity and high density of heavy oil, the viscosity reduction had firstly to be done to ensure heavy oil extraction, gathering, and processing. The hydrogen donated visbreaking process, which the hydrogen donor was added into the conventional visbreaking process to solve the problem of low processing depth,coking,and poor stability,was an efficient thermal viscosity reduction technology. This review first introduced the basic types of heavy oil pipeline transportations. Then the hydrogen donating mechanism,the effect of hydrogen donor,the species of hydrogen donor, determination of donatable hydrogen concentration and application of hydrogen donor were summarized. The selection of hydrogen donors should be determined according to process conditions and the properties of hydrogen donor. The key issue of affecting the coking and inhibiting coking is whether the active hydrogen can be timely closed the asphaltic free radicals.
    • 李世松; 舒畅; 宋国良; 王栋
    • 摘要: 以国内某炼油厂减压渣油为焦化原料,选用该厂焦化蜡油作为供氢剂,并将焦化蜡油切割成小于400°C馏分(A)、400~430°C馏分(B)和430~460°C馏分(C)3个窄馏分,测定了3个窄馏分的结构参数和供氢指数,并在相同的反应条件下,在减压渣油中分别掺炼质量分数10%的3个窄馏分,考察了各焦化产物的收率,并与纯减压渣油焦化反应进行了对比.结果表明:3个窄馏分供氢指数由大到小的顺序为A>B>C;掺炼窄馏分A的焦化反应液体收率明显高于纯减压渣油焦化反应;在3个窄馏分中,掺炼A时的液体收率最高,掺炼B时次之,掺炼C时最低,这与3个窄馏分供氢指数的测定结果一致.%A vacuum reside was chosen as a coking feed.Three narrow cuts:<400 °C (A),400-430 °C (B),and 430-460 °C (C)of the coking gas oil in the same refinery were used as hydrogen donors.The hydrogen-donating indexes and structure parameters of three narrow fractions were measured.Under the same coking conditions,the product yields of the residue blending with 10% narrow cut respectively were examined and compared with the results of pure residue without narrow cut.The order of hydrogen-donating indexes of three narrow fractions is A>B>C.The same order is for liquid yields for residue blending with three cuts.While the yield of liquid product of vacuum residue with cut A is higher than the pure residue.
    • 王伟; 康东会; 舒畅; 王兴
    • 摘要: The capacities of hydrogen supply and hydrogen abstraction of hydrocracking tail oil and vacuum residue from CNOOC Refining Branch Huizhou Refinery were determined.The delayed coking laboratory and pilot plant test were performed using the residue and the residue with 10% hydrocracking tail oil.The pilot plant test results show that at the conditions of 500 °C and 0.15 MPa,compared with residue only,the total yield of naphtha,diesel and waxy oil increases by 4.2 percentage points;the yield of coke and dry gas reduces by 3.1 percentage points and 1.1 percentage points,respectively after the addition of hydrocracking tail oil as hydrogen donor.%对中海炼化惠州炼化分公司加氢裂化尾油和减压渣油进行了供氢、夺型氢能力测定,以加氢裂化尾油为供氢剂,以10%的比例加入到减压渣油中,进行延迟焦化实验室试验以及中型试验.结果表明,在反应温度为500 °C、反应压力为0.15 MPa的条件下,分别以减压渣油和加入10%供氢剂的减压渣油为原料进行延迟焦化反应,与减压渣油原料相比,减压渣油中加入10%供氢剂后,粗汽油、粗柴油以及蜡油收率提高4.2百分点,焦炭收率降低3.1百分点,气体收率降低1.1百分点.
    • 陆强; 郭浩强; 叶小宁; 王昕; 周民星
    • 摘要: 生物质快速热解过程中会发生均裂等自由基反应从而生成不稳定的自由基中间体,供氢体的存在能够有效稳定这些自由基中间体,从而降低焦炭的生成,提高生物油产率及其品位,实现生物质的高效转化.概述了四氢萘、小分子醇类以及有机高分子聚合物等供氢剂作用下生物质快速热解特性、产物分布与供氢机理;总结了各类供氢剂作用下生物质快速热解的共性及各自特点;最后提出了未来在供氢剂筛选以及供氢剂作用下生物质热解过程定向调控方面的建议.%During biomass fast pyrolysis process, the occurrence of free radical reactions generates a certain amount of free radical intermediates. Hydrogen free radicals from hydrogen donors will stabilize these intermediates to effectively regulate the distribution of char and high grade bio-oil to achieve value-added utilization of biomass. This paper summarizes the effects of hydrogen donors(1,2,3,4-tetrahydronaphthalene, linear alcohols, organic macromolecule polymer, etc. ) on the fast pyrolysis of biomass, and the hydrogen free radicals supply mechanisms from different hydrogen donors. Afterwards, the commonness and the characteristics of biomass pyrolysis with the addition of different hydrogen donors are concluded. Finally, perspective researches are proposed to extend the selection of hydrogen donors and optimize the regulation of pyrolytic products.
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