塔河油田在信息化条件下的生产运行管理

针对塔河油田生产的实际情况,实施信息化生产管理,保证生产运行的安全。为了提高油田生产的效率,不断提高信息化生产管理的水平,实施现代的生产运行管理,完成油田生产的任务,为塔河油田创造最佳的生产效率。     

油田生产过程的数字化管理措施

随着油田开发的不断深入,油田生产数字化管理措施,被广泛地应用于油田生产过程中。为提高油田生产的智能化水平,建立数字化生产管理平台,实施生产过程监控,强化安全生产管理,实现油田生产的现代化。     

谈安全生产主体责任的落实

《安全生产法》第四条规定：“生产经营单位必须遵守本法和其他有关安全生产的法律、法规,加强安全生产管理,建立、健全安全生产责任制度,完善安全生产条件,确保安全生产。”这就从法律上明确了企业是安全生产的责任主体。所有企业必须按照“安全第一,预防为主,综合治理”的方针,针对本单位实际情况,建立、健全、完善安全生产责任制并予以落实,确保生产安全顺利进行。     

化工生产技术管理与化工安全生产的关联性分析

为探讨化工生产技术管理与安全生产之间的关联、提高化工产品生产的安全性,文章针对化工生产技术管理和安全生产二者之间的关联简单进行分析,包括化工技术为安全生产提供保障、生产技术管理能够规避安全隐患以及生产技术管理贯穿安全生产三个方面。同时,研究了化工生产技术管理和安全生产中存在的管理制度体系发展不完善、安全生产专业人员素质有待提升、设备更新维护工作不到位及缺乏信息技术应用的问题。针对这些问题,提出了安全生产管理制度体系健全、组建高素质安全生产工作队伍、设备更新维护工作调整以及信息化安全管理系统建设的对策,为化工生产安全技术管理及安全生产工作优化提供参考。     

天然气化工生产中的安全生产管理措施

天然气化工生产过程属于高温高压的危险生产场所,必须采取必要的安全生产管理措施,才能保证安全生产,得到需要的化工产品。基于天然气化工生产的特殊性,采取切合实际的安全生产管理措施,不断提高产品的收率,满足天然气化工生产的需求。     

浅谈陶瓷生产企业的安全质量标准化建设

随着我国陶瓷生产行业的发展,安全质量变得更为重要,为了防止安全事故的发生,要鼓励陶瓷生产企业实施安全生产,建议生产监督部门对陶瓷企业生产给予安全生产质量的标准.     

采气生产过程中的数字化电器设备管理措施

采气生产过程中,实施数字化管理,提高采气生产的自动化程度,降低岗位员工的劳动强度,不断提高采气生产的效率。降低采气生产过程中的安全风险,加强对采气生产过程中数字化电器设备的管理,为采取生产设备提供电能,促进采气生产的顺利实施,扩大最佳的产气量,提高采气生产企业的经济效益。     

精细化工生产管理存在的问题及对策研究

本文主要简单的介绍了精细化工生产管理的重要意义,通过对现阶段精细化工生产管理中存在的问题进行分析,来探讨解决精细化工生产管理问题的有效对策,以充分发挥精细化工生产管理作用,加强对精细化工生产的监控,保障化工生产质量,实现化工生产模式的转型,使其更加精细,从而推动化工生产企业的可持续发展。     

油田区域生产协调管理的重要性

油田区域生产的协调管理的非常重要的,规范各项管理措施,协调一切关联的问题,促进油田生产的顺利实施,避免发生严重的安全事故,保证安全平稳地完成生产任务。通过对油田生产区域的协调管理,理顺油田生产的各个工艺流程,将上游生产单位与下游生产联系起来,达到预期的生产效率。     

油田SCADA系统预警报警功能优化

油田生产过程中,采用SCADA系统,实现油田生产数据的实时采集和处理,提高油田生产的数字化管理水平。加强对系统的预警报警功能的管理,通过对系统应用程序的优化,规范油田生产管理,合理控制油田生产参数,精细化管理油田生产的各个环节,避免发生安全环保事故,提高了油田生产的安全环保特性,使油田生产达到预期的产能指标。     

CLA production from ricinoleic acid by lactic acid bacteria

The ability to produce CLA from ricinoleic acid is widely distributed in lactic acid bacteria. Washed cells of Lactobacillus plantarum JCM 1551 were selected as a potential catalyst for CLA production from ricinoleic acid. Cells cultivated in medium supplemented with a mixture of α-linolenic acid and linoleic acid showed enhanced CLA productivity. Under optimal reaction conditions, with the free acid form of ricinoleic acid as the substrate and washed cells of L. plantarum as the catalyst, 2.4 mg/mL CLA was produced from 3.4 mg/mL ricinoleic acid in 90 h, with a molar yield with respect to ricinoleic acid of 71%. The CLA produced, which was obtained in the FFA form, consisted of a mixture of two CLA isomers, cis-9,trans-11-octadecadienoic acid (21% of total CLA) and trans-9,trans-11-octadecadienoic acid (79% of total CLA), and accounted for 72% of the total FA obtained.     

Pentadecanedioic acid production from 15-hydroxypentadecanoic acid using an engineered biocatalyst with a co-factor regeneration system

α,ω-Dicarboxylic acids are valuable precursors in various chemical industries and have recently been produced using biotechnological methods to overcome the limitations of chemical synthesis. Nonanedioic acid, decanedioic acid, undecanedioic acid, and dodecanedioic acid have been produced at high concentrations from ω-hydroxycarboxylic acids using engineered biocatalysts. However, no study has been attempted on the efficient production of pentadecanedioic acid. Here, the production of pentadecanedioic acid from 15-hydroxypentadecanoic acid was carried out with alcohol dehydrogenases (ADHs), aldehyde dehydrogenases (ALDHs), and NAD(P)H oxidases, including NAD(P)H flavin oxidoreductase (NFO), that used a co-factor regeneration system, derived from several species and expressed in Escherichia coli. Among the enzymes, Kangiella koreensis ADH (KkADH), Geobacillus kaustophilus ALDH (GkALDH), and Deinococcus radiodurans NFO (DrNFO) were selected because they had the highest activity. E. coli expressing pRSF-DrNFO and pACYC-KkADH/GkALDH as the best distribution of three genes in two plasmids was used as a biocatalyst to produce pentadecanedioic acid. The optimal conditions for producing pentadecanedioic acid from 15-hydroxypentadecanoic acid by the biocatalyst were pH 8.0, 35°C, 5% (v/v) methanol, 40 g L⁻¹ cells, and 60 mM 15-hydroxypentadecanoic acid with agitation at 250 rpm. Under these optimized conditions, 57.4 mM pentadecanedioic acid was produced after 3 h, with a molar yield of 95.6% and a productivity of 19.1 mM h⁻¹. The molar yield and concentration of pentadecanedioic acid showed the highest values among the reported biotechnological production of pentadecanedioic acid.     

Process for production of arachidonic acid concentrate by a strain of mortierella alpina

Various Mortierella alpina fungi were screened for their capacities to produce arachidonic acid. A strain of M. alpina was found to show the highest productivity. Arachidonic acid content of biomass and overall yield per litre of culture was highest in soya flour supplemented medium which produced dispersed mycelium. When the glucose concentration in the medium was varied from 30 to 100 g/L, biomass, lipid, arachidonic acid content of biomass and arachidonic acid yield increased with increasing glucose concentration. Several natural oils, when added to the growth medium, stimulated arachidonic acid production. After fermentation in a 20-L fermenter under optimal culture conditions, the arachidonic acid yield was 5.3 g/L, representing 34.2% w/w of total fatty acids and 13.7% w/w of biomass. An extract containing 72.5% w/w arachidonic acid was prepared from the recovered mycelium.     

钛白废酸高效高值利用工业实践

介绍了鲁北集团w（H2SO4）为20%左右钛白废酸的工业应用情况。钛白废酸经废酸预处理、与浓硫酸混配、冷却熟化、固液分离,得到w（H2SO4）为64%左右的净化酸用来萃取湿法磷酸。磷酸用于生产磷铵,副产磷钛石膏又用于制硫酸和水泥,滤渣进入硫铁矿制酸系统进行掺烧制硫酸。该工艺消除了资源化利用过程中副产品对下游产品的影响,实现了钛白废酸的高效、高值利用。     

Conjugated linoleic acid production from linoleic acid by lactic acid bacteria

After screening 14 genera of lactic acid bacteria, Lactobacillus plantarum AKU 1009a was selected as a potential strain for CLA production from linoleic acid. Washed cells of L. plantarum with high levels of CLA production were obtained by cultivation in a nutrient medium with 0.06% (wt/vol) linoleic acid (cis-9,cis-12-octadecadienoic acid). Under the optimal reaction conditions with the free form of linoleic acid as the substrate, washed cells of L. plantarum produced 40 mg CLA/mL reaction mixture (33% molar yield) from 12% (wt/vol) linoleic acid in 108 h. The resulting CLA was a mixture of two CLA isomers, cis-9,trans-11 (or trans-9,cis-11)-octadecadienoic acid (CLA1, 38% of total CLA) and trans-9,trans-11-octadecadienoic acid (CLA2, 62% of total CLA), and accounted for 50% of the total FA obtained. A higher yield (80% molar yield to linoleic acid) was attained with 2.6% (wt/vol) linoleic acid as the substrate in 96 h, resulting in CLA production of 20 mg/mL reaction mixture [consisting of CLA1 (2%) and CLA2 (98%)] and accounting for 80% of total FA obtained. Most of the CLA produced was associated with the cells (ca. 380 mg CLA/g dry cells), mainly as FFA.     

Distribution of soap in a membrane reactor in the production of fame from waste cooking oil

A continuous‐flow membrane reactor was constructed for the production of fatty acid methyl ester (FAME) from waste vegetable oil with high free fatty acid (FFA) content. FAME was produced via base‐catalysed transesterification with methanol at two FFA levels: 4.8 and 10 mass%. The effect of the ceramic membrane pore size on the separation of soap and triglycerides from the FAME in the reactor was investigated. In all cases, the triglyceride was completely retained in the reactor, yielding free and total glycerine contents in the produced FAME significantly below the maximum limits of the ASTM D6751 standard. The soaps produced in the reaction mixture were not completely retained in the reactor and did not affect the FAME production process. © 2012 Canadian Society for Chemical Engineering     

Effects of agingmortierella mycelium on production of arachidonic and eicosapentaenoic acids

Arachidonic acid and eicosapentaenoic acid (EPA) are important intermediates of eicosanoid metabolism and are presently the subject of extensive nutritional and medical research. The effects of mycelial aging on production of these fatty acids were investigated as part of a research program directed toward examining the feasibility of economically producing these products by fungal fermentation. Arachidonic acid content ofM. alpina ATCC 32222 increased from 4.1–8.3% to 13–16% during aging while lipid content of mycelium increased from 14–18% to 33–45%. Maximum lipid content produced in biomass during storage declined as harvesting time was increased from 3 to 6 days while maximum arachidonic acid content in lipid increased. Maximum lipid and arachidonic acid was produced during aging at pH 8, whereas arachidonic acid content of lipids was highest in mycelium aged at pH 6. EPA content ofM. elongata NRRL 5513 biomass increased during aging, reaching a maximum after 22–28 days. When the pH of the culture prior to harvesting was adjusted in the range of pH 4–9, pH values for development of maximum EPA in biomass and in lipids during storage were found to be 6 and 7, respectively. Temperature of aging had little effect on arachidonic acid or EPA content.     

中性磷霉素钠生产工艺探讨

研究一种新的、高效价的中性磷霉素钠生产方法。方法：磷霉素钠在生产过程中，左盐游离分层后加入柠檬酸或乙酸等有机酸，生成中性磷霉素钠的水溶液，再用元水乙醇结晶，过滤、干燥，得磷霉素一钠与二钠混合的中性磷霉素钠。结果：加入乙酸后生成的中性磷霉素钠效价每1mg超过740磷霉素单位。结论：本次研究的中性磷霉素钠的生产方法，工艺简单，操作方便，减小了质量控制的难度，降低了生产成本，提高效价，使产品质量得到了进一步提高，增强了企业的竞争力。     

生物质生产乙酰丙酸研究进展

乙酰丙酸具有高反应活性和广泛的用途,是重要的平台化合物,可由生物质转化而来。本文综述了生物质生产乙酰丙酸的研究进展,包括催化方法和纯化方法。     

硫酸法钛白粉生产循环经济模式

针对硫酸法钛白粉生产中“三废”产生量大、处理成本高的问题,提出一种以废酸的资源化利用为核心的循环经济模式。水解工序排出的加（H2SO4）约20％的废酸通过多效真空浓缩为w（H2SO4）约55％的硫酸,用于钛白粉或磷化工装置,浓缩过程析出的一水硫酸亚铁用于生产硫酸,焙烧产生的w（Fe）约65％的烧渣作为钢铁厂炼铁原料。详细讨论了废酸浓缩工艺及工艺参数的选择,以及硫酸亚铁制酸需解决的工程问题。