检索结果-南通市图书馆

China Petroleum Processing & Petrochemical Technology 2015年第1期17卷 75-81页

作者： Zhang Feng Shen Benxian Sun Hui Liu Jichang Shang Jianfeng State Key Laboratory of Chemical Engineering East China University of Science and Technology SINOPEC Zhongyuan Oilfield Puguang Company

The performance of four formulated solvents(labeled as UDS-I, UDS-II, UDS-III, and UDS-IV) for removing methyl mercaptan from liquefied petroleum gas was predicted based on a two-dimensional solubility parameter theory. The calculation results show that UDS-IV has the closest solubility parameter to that of methyl mercaptan as compared with other tested solvents, indicating the strongest affinity and the highest solubility for methyl mercaptan. The industrial tests at a plant for desulfurization of LPG produced from the delayed coker have shown that the UDS solvents have the excellent performance for removal of organosulfur compounds(mainly methyl mercaptan). Although the sulfur loading dramatically increases, the total sulfur content of LPG treated with UDS-IV can be reduced by about 50% in comparison with N-methyl diethanolamine. In addition, UDS-IV has superior regeneration performance and selectivity for sulfur compounds over hydrocarbons. The industrial test and the solubility parameter calculation results are in good agreement with each other.

关键词： liquefied petroleum gas desulfurization solvent solubility parameter methyl mercaptan organosulfur

Numerical simulation of detonation of an explosive atmosphere of liquefied petroleum gas in a confined space

在线全文

学校读者我要写书评

暂无评论

Defence Technology（防务技术） 2014年第3期10卷 294-297页

作者： Niculae Serban COSTIN Military Technical Academy

The detonation of an explosive atmosphere from liquefied petroleum gas disseminated in air in a confined space is studied using numerical modeling with software product ANSYS AUTODYN.

关键词： liquefied petroleum gas Overpressure Confined space Explosion limit

在线全文

学校读者我要写书评

暂无评论

液化天然气池火固体火焰模型及预测工具

消防科学与技术 2015年第1期34卷 120-122页

作者：刘昌华党文义化学品安全控制国家重点实验室山东青岛266071 中国石油化工股份有限公司青岛安全工程研究院山东青岛266071

通过对陆上和水上LNG大尺寸火灾实验测试结果进行分析,得到影响LNG池火灾热辐射的关键参数,包括最大燃烧速率、最大表面热辐射能及LNG池火燃烧速率、表面热辐射能、火焰形状和传输率预测模型,并据此开发了基于固体火焰模型的LNG池火热... 详细信息

通过对陆上和水上LNG大尺寸火灾实验测试结果进行分析,得到影响LNG池火灾热辐射的关键参数,包括最大燃烧速率、最大表面热辐射能及LNG池火燃烧速率、表面热辐射能、火焰形状和传输率预测模型,并据此开发了基于固体火焰模型的LNG池火热辐射预测工具LNGFHR。与LNGFIRE 3模型的计算结果进行对比,表明LNGFHR在陆上圆形LNG池火灾热辐射预测值与LNGFIRE 3接近;对于水面LNG池火,LNGFHR采用了最新的大尺寸LNG水面池火实验的研究结果,其预测结果大于LNGFIRE 3模型的预测值。

关键词：液化天然气 LNG池火热辐射安全评估固体火焰模型 LNGFIRE 3 liquefied natural gas (LNG) LNGFIRE 3

Horizontal Normal Force on Buried Rigid Pipelines in Fluctuant liquefied Silty Soil

在线全文

学校读者我要写书评

暂无评论

Journal of Ocean University of China 2019年第1期18卷 1-8页

作者： XU Xingbei XU Guohui REN Yupeng LIU Zhiqin CHEN Changyun Key Laboratory of Marine Environment and Ecology Ministry of Education Ocean University of China Shandong Provincial Key Laboratory of Marine Environment and Geological Engineering Ocean University of China First Institute of Oceanography Ministry of Natural Resources

The submarine pipelines that are buried in the Yellow River subaqueous delta can be subject to fluctuant local-liquefied soil caused by storm wave action, possibly causing pipeline damage. An experimental investigation was carried out in a wave flume to study the horizontal normal force on buried rigid pipelines in fluctuant liquefied soil. In this experiment, the soil bed was made of silt from the Yellow River Delta, whereas a steel pipe served as pipeline. Under the experimental conditions, the normal force range on the pipeline in fluctuant liquefied soil was several times higher than that in stable soil, specifically on the side of the pipeline exposed to the wave direction. The resultant force of the horizontal normal forces on the buried pipeline grew by about one order of magnitude after soil liquefaction.

关键词： wave flume experiment fluctuant liquefied soil buried pipeline normal force

Alternative System of Industrial Paint Applied to Spherical Mount for liquefied Petroleum Gas

在线全文

学校读者我要写书评

暂无评论

Journal of Materials Science and Chemical Engineering 2014年第5期2卷 7-14页

作者： Fernando B. Mainier Francisco Otavio Pereira da Silva Gilberto Oliveira da Silva Escola de Engenharia Universidade Federal Fluminense (UFF) Niterói Brazil Petrobras—Petróleo Brasileiro SA Rio De Janeiro Brazil

The present article reports the application of zinc ethyl silicate paint and the use of internal and external paint schemes on carbon steel spheres for the storage of liquefied petroleum gas. The new paint scheme eliminates the steps of blasting in the field and minimizes the collection of waste generated and the environmental impact, reducing the service time onsite and therefore providing a productivity gain and better health and cleanliness at work. The results were obtained through test runs and qualified in bodies-of-proof made with the same characteristics as the sphere, that is, using the same material (carbon steel), thickness, and mechanical formation and subject to the same conditions of design and implementation process. The paint scheme was approved, qualified, and committed to the supplier’s warranty with the paint manufacturer and assembler of the storage spheres for liquefied petroleum gas.

关键词： Paint Corrosion Zinc Ethyl Silicate liquefied Petroleum Gas Carbon Steel Spheres

Selective conversion of syngas to propane over ZnCrO_x-SSZ-39 OX-ZEO catalysts

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Energy Chemistry 2019年第9期28卷 141-147页

作者： Gen Li Feng Jiao Dengyun Miao Yong Wang Xiulian Pan Toshiyuki Yokoi Xiangju Meng Feng-Shou Xiao Andrei-Nicolae Parvulescu Ulrich Müller Xinhe Bao State Key Laboratory of Catalysis National Laboratory for Clean Energy Dalian Institute of Chemical Physics Chinese Academy of SciencesDalian 116023Liaoning China University of Chinese Academy of Sciences Beijing 100049 China Institute of Innovative Research Tokyo Institute of TechnologyYokohama 226-8503 Japan Department of Chemistry Zhejiang UniversityHangzhou 310028 Zhejiang China BASF SE Process Research and Chemical Engineering67056 Ludwigshafen Germany

Oxide-Zeolite(OX-ZEO) bifunctional catalyst design concept has been exemplified in several processes to direct conversion syngas to value-added chemicals and fuels such as mixed light olefins, ethylene, aromatics and gasoline.Herein we demonstrate that the product can be steered toward liquefied petroleum gas(LPG) with a selectivity up to 89% in hydrocarbons especially propane selectivity reaching 80% at CO conversion of 63% using ZnCrOx-H-SSZ-39 catalyst.Interestingly, the quantity of the acid sites of SSZ-39 does not influence obviously the hydrocarbon distribution but the strength is crucial for selective formation of propane.This finding provides an alternative route of LPG synthesis from a variety of carbon resources via syngas.

关键词： Syngas conversion liquefied petroleum gas (LPG) Propane Zeolites SSZ-39 OX-ZEO Bifunctional catalysts

Import of liquefied Gas Increased by 30% in the First Half of 1998

在线全文

学校读者我要写书评

暂无评论

China Oil & Gas 1998年第3期5卷 186-187页

作者： Li Limei(University of Petroleum, Shandong)

Global LNG Trade Shifts and China's Responses

在线全文

学校读者我要写书评

暂无评论

China Oil & Gas 2019年第3期26卷 43-51页

作者： Hu Guosong Zhang Chuhan Southwest Petroleum University

With the global energy transformation the international liquefied natural gas(LNG) market is undergoing profound changes. Due to world economic development, industrial restructuring, natural gas and alternative energy competition as well as other factors, global LNG supply and demand, LNG market structure and LNG prices will start to show new trends shortly. Hence, China, a major natural gas producer and an important LNG importer in the world,will face plenty of new opportunities and challenges in LNG imports. In response, we must take appropriate measures on industrial policies and regulations, prices and markets, etc.

关键词： liquefied Natural Gas(LNG) Global LNG Trade Impact Measures

同方期刊数据库

Analysis of Efficiency of the Ship Propulsion System with Thermochemical Recuperation of Waste Heat

在线全文

学校读者我要写书评

暂无评论

Journal of Marine Science and Application 2018年第1期17卷 122-130页

作者： Oleksandr Cherednichenko Serhiy Serbin Mechanical Engineering Institute Admiral Makarov National University of ShipbuildingMykolaiv 54025Ukraine

One of the basic ways to reduce polluting emissions of ship power plants is application of innovative devices for on-board energy generation by means of secondary energy resources.The combined gas turbine and diesel engine plant with thermochemical recuperation of the heat of secondary energy resources has been considered.It is suggested to conduct the study with the help of mathematical modeling methods.The model takes into account basic physical correlations,material and thermal balances,phase equilibrium,and heat and mass transfer processes.The paper provides the results of mathematical modeling of the processes in a gas turbine and diesel engine power plant with thermochemical recuperation of the gas turbine exhaust gas heat by converting a hydrocarbon fuel.In such a plant,it is possible to reduce the specific fuel consumption of the diesel engine by 20%.The waste heat potential in a gas turbine can provide efficient hydrocarbon fuel conversion at the ratio of powers of the diesel and gas turbine engines being up to 6.When the diesel engine and gas turbine operate simultaneously with the use of the LNG vapor conversion products,the efficiency coefficient of the plant increases by 4%–5%.

关键词： liquefied natural gas Thermochemical heat recovery Gas turbine engine Diesel engine Boil-off gas Efficiency

斜浪下FLNG与LNGC旁靠时相对运动的时域分析（英文）

在线全文

学校读者我要写书评

暂无评论

Journal of Marine Science and Application 2018年第4期17卷 519-530页

作者：周珂胡志强赵东亚 State Key Laboratory of Ocean Engineering Shanghai Jiao Tong University School of Engineering Newcastle University

Strong hydrodynamic interactions during the side-by-side offloading operation between floating liquefied natural gas(FLNG) and liquefied natural gas carrier(LNGC) can induce high risks of collision. The weather vane effect of a single-point mooring system normally results in the satisfactory hydrodynamic performance of the side-by-side configuration in head seas. Nevertheless, the changes in wave directions in real sea conditions can significantly influence the relative motions. This article studies the relative motions of the side-by-side system by using the theoretical analysis method and the numerical calculation method. Based on the three-dimensional potential theory modified by artificial damping-lid method, the frequency-domain hydrodynamic coefficients can be improved to calculate the retardation functions for the multi-body problem. An in-house code is then developed to perform the time-domain simulation of two vessels, through which the relative motions are subsequently obtained. A range of oblique waves are chosen for the extensive calculation of relative motions between the two vessels, which are further analyzed in terms of the phase shift of motion responses induced by specific resonant wave patterns. Investigation results show that wave directions have a significant influence on the relative sway, roll, and yaw motions. Under the circumstance that the absolute phase shift between the roll motions of two vessels approaches 180°, stronger relative motions are induced when LNGC is on the weather side.Moreover, the gap water resonances at high frequencies tend to cause the dangerous opposed oscillation of two vessels in the sway and yaw modes, whereas FLNG reduces the gap water resonances and relative motions when located on the weather side.

关键词： Floating liquefied natural gas(FLNG) Multi-body system Time-domain simulation Oblique waves Relative motion Gap resonance Shielding effect