depolymerization相关论文
The conversion of triglycerides (coffee oil) obtained from spent coffee ground to produce hydrocarbon fuel (diesel) was ......
A new lignin depolymerization approach for improving the yield of aromatic monomers (YAM) by enzymolysis pretreatment wa......
Using lignocellulosic biomass as opposed to petroleum/fossil feedstock to synthesize chemicals and monomers offers the v......
采用间歇高压反应釜研究了聚对苯二甲酸丁二醇酯（PBT）在超/亚临界乙醇中的解聚。 在投料比10.0（20g EtOH / 2g PBT）条件下，主要考察反应......
Process optimization of preparing low molecular chitosan by microwave-assisted heating treatment usi
Low molecular mass (MM)chitosan with high degree of deacetylation (DDA) has excellent bioactivity including targeting dr......
最近的研究表明,贝加因可通过保护神经而缓解Aβ25-35 诱导的健忘症,并可能降低氧化应激从而减少PC12 细胞中Aβ蛋白的细胞毒性[1-......
Cleavage of the β-O-4 Bond of Lignin Model Compounds Catalyzed by an Acidic Ionic Liquid,1-H-3-Methy
Understanding the catalytic cleavage mechanism of the β–O–4 bond of lignin is of crucial importance for developing ef......
This study was to investigate the optimal additions of the cellulose decomposition reaction to obtain the most yield of ......
In recent years,the interest in studying modification of pectin has increased.A number of hydroxyl and carboxyl grou......
从在小粒的玉蜀黍淀粉和糊精之上的 0～400 Gy 的X光检查放射的剂量的效果(英国口香糖， BG )热地在 230-300 度 C 从它产生了与量的 ......
Hydrogenolysis of organosolv hydrolyzed lignin over high-dispersion Ni/Al-SBA-15 catalysts for pheno
Efficiency and recycling of catalysts are important for the lignin hydrogenolysis to obtain phenolic monomers.In this wo......
,Effect of pH conditions on the depolymerization of Wucaiwan coal by mixed acids/ultrasound method a
The cleavage of the aliphatic chain or ether bond connecting the polycyclic aromatic hydrocarbons in coal can be achieve......
本文通过对荣华二采区10...
本文通过对荣华二采区10...
Mathematical analysis of physicochemical phenomena in the catalyst during hydrogenating depolymeriza
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......
Catalytic depolymerization of calcium lignosulfonate by NiMgFeOx derived from sub-micron sized NiMgF
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......
UV irradiation-H202 system as an effective combined depolymerization technique to produce oligosacch
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
DEPOLYMERIZATION AND KINETICS OF DEPOLYMERIZATION OF POLYETHYLENE TEREPHTHALATE USING DIBUTYLTIN OXI
Depolymerization of poly(ethylene terephthalate) (PET) was performed in the tubular bomb microreactor which contained th......
One kind of papain was used to depolymerize chitosan in this paper. Four factors of reactions were studied including con......
DEPOLYMERIZATION AND KINETICS OF DEPOLYMERIZATION OF POLYETHYLENE TEREPHTHALATE USING DIBUTYLTIN OXI
Depolymerization of poly(ethylene terephthalate) (PET) was performed in the tubular bomb microreactor which contained th......
Measurement of the Average Molecular Weight of Cotton Cellulose Crosslinked by a Polycarboxylic Acid
Durable press finishing of cotton fabrics with polycarboxylic acid increases fabric wrinkle-resistance at the expense of......
The depolymerization of poly(bisphenol A carbonate)(PC) in subcritical and supercritical toluene was studied. The experi......
苯并噁嗪树脂的生产过程会产生含甲醛的废水,属于有毒和难处理的废水之一,且主要以多聚甲醛的形式存在。本文将多聚甲醛解聚成游离......
利用废弃聚酯在乙二醇介质中解聚,其解聚温度为160～200℃,催化剂醋酸锌用量一般为0.03％～0.1％,得到的中间产物为对苯二甲酸双羟乙酯单体......
以麦秸为研究对象,解聚剂为HCl、HNO3和H3PO4,对解聚产物进行定性和定量分析,并利用动力学模型描述木糖及糠醛的产生过程。结果表......
对双环戊二烯气相解聚进行了实验研究，考察了解聚温度、停留时间、原料组成等因素对解聚过程的影响。实验过程中采用了双戊二烯与水......
采用超临界甲醇解聚的方法,将聚对苯二甲酸丁二醇酯(PBT)降解为对苯二甲酸二甲酯(DMT)和丁二醇两种单体.利用液相色谱法分析产物DM......
选取常见的一元醇为介质,对聚己内酯进行醇解反应研究,研究了在常压下不同醇解聚聚己内酯的反应温度对醇解率、醇解产物回收率的影......
建立了一种新的褐藻胶寡糖的制备方法,即氧化降解法.通过褐藻胶来源的聚甘露糖醛酸(PM)在不同浓度的过氧化氢、不同温度和不同反应......
用还原糖法研究了脂肪酶降解壳聚糖过程中一系列反应条件包括温度、pH值、时间、酶浓度、底物浓度对降解速度的影响,比较合适的降......
对四聚乙醛（熔点246.2℃）生产中副产物三聚乙醛（熔点12.5℃）的解聚工艺进行研究改进。将常压间歇法改为加压连续法，既节能降耗，又减少污......
采用固相/水解法对木质素磺酸盐解聚转化，研究了碱量和解聚温度对液相产物产率的影响。结果表明，固相/水解法具有较高的液相产物产率......
Catalytic depolymerization of calcium lignosulfonate by NiMgFeOx derived from sub-micron sized NiMgF
A new method for regulating the synthesis of Ni Mg Fe hydrotalcites(NMF LDHs) with the addition of hydroxyl compounds wa......
综述了近几年来木素化学解聚产物特征及机理的研究进展，简要介绍木素大分子形成过程、结构单元、连接方式及三相产物（液相、气相、固......
在Reppe法生产1,4-丁二醇（BDO）的过程中,刮膜式蒸发器会产生一定量的黏稠蒸馏底物。提出了在加压条件下,以稀硫酸为催化剂,对该底物......
纤维素酶降解与超滤结合制备壳聚糖，工艺简单可行，产品平均分子量小而分布窄，收率高。试验确定纤维素酶对壳聚糖降解的最佳反应条件为......
在高压反应器中研究了聚对苯二甲酸丙二醇酯的甲醇解聚反应规律，考察了反应温度、时间等对解聚反应的影响。结果表明，单体收率随反应......
木瓜蛋白酶经戊二醛固定于自制的甲壳质上制成固定化木瓜蛋白酶,其水解甲壳胺的最佳条件是:45℃,pH 4.0的1%的甲壳胺溶液(醋酸缓冲......
研究纤维素酶降解结合膜法制备低聚壳聚糖。采用正交设计优选酶降解的最佳工艺条件及分析超滤产品的平均相对分子质量和收率。纤维......
探索了以苯酚、硼酸和多聚甲醛为原料的酯化氧化法合成水扬醛的工艺路线，根据反应特点，改进了酯化反应方式，采用了多聚甲醛气态解聚法......
以乙烯装置副产C10为原料,采用解聚-精馏分离工艺进行高纯度环戊二烯和甲基环戊二烯的分离试验,并对解聚反应及精馏的工艺条件进行......
采用微波辅助加热，在异丙醇条件下醇解木质素.研究了反应温度对木质素液化产物产率的影响，并利用气相色谱质谱联用仪（GC/MS)、基质辅......
采用γ射线辐照分子量为４５０ｋｄ天然壳聚糖溶液，分析了辐照强度及辐照时间与降解产物粘均分子量，还原糖分子及分子量均一性之间的关系，并通过......
在温度160-260℃、压力1．4～8．5MPa、反应时间15～60min条件下，研究聚碳酸酯（PC）在超、亚临界乙醇中的解聚反应，着重考察反应温度、反应时间......
Measurement of the Average Molecular Weight of Cotton Cellulose Crosslinked by a Polycarboxylic Acid
Durable press finishing of cotton fabrics with polycarboxylic acid increases fabric wrinkle-resistance at the expense of......
利用高压间歇反应器研究了聚碳酸酯(PC)在230～265 ℃、7.76～9.96 Mpa条件下的降解特性.通过红外光谱(IR)、体积排阻色谱(SEC)和气相......
研究了聚苯乙烯在超临界二甲苯介质中的解聚反应,温度为340~390℃,压力为5MPa、10MPa.产物用GC-MS分析表明解聚产物多达107种,含量......
在高压间歇无搅拌反应器中研究了聚对苯二甲酸丁二醇酯（PBT）在高温甲醇溶液中的降解行为，通过对降解产物的各种定性和定量的分析，提出......
本文探讨了以二乙醇胺与乙二醇为解聚剂，聚氨酯微孔泡沫塑料（ＰＵＦ）的解聚规律，并将解聚产物用作双酚Ａ环氧树脂固化剂，得到了力学性能较好的固......
