Exploration of Operation and Maintenance Management Mode and Innovation Mechanism of Pilot Base of Chemical Park

Based on the current situation of the operation and maintenance management of the pilot base in many chemical parks in China,this paper conducts an in-depth exploration of the operation and maintenance management and innovation mode of the pilot base from the aspects of the evaluation of the pilot project entering the park,safety and environmental protection supervision,pilot mode,and industrialization mode of the pilot test results,so as to provide solutions for accelerating the process and industrialization of the pilot project and realizing the innovation value of the pilot base.

Informational uncertainties of risk assessment about accidents of chemicals

An analysis system of informational uncertainties for accidental risk assessment of chemicals is introduced. Statistical test methods and fuzzy sets method can do the quantitative analysis of the input parameters. The uncerainties of the model can be used by quantitative compared method for the leakage accidents of chemicals. The estimation of the leaking time is important for discussing accidental source term. The uncertain analyses of the release accident for pipeline gas (CO) liquid chlorine and liquid propane gas (LPG) have been discussed.

Leak Detection and Repair (LDAR) Standard Review for Self-Inspection and Management for VOC Emission in China’s Traditional Energy Chemical Industry

The emission of the traditional energy chemical industry accounts for 20% of the total manmade VOC emission in China, of which coal chemical and petrochemical plants are one of the most important VOC emission sources. VOC emission sources mainly include the leakage of oil refinery units and equipment, pipes and valves, respiration and leakage of various types of storage tanks, effusion of oils during loading and unloading, effusion of sewage treatment systems, all kinds of process tail gas, etc. In this paper, the current management status of VOC emission in China’s coal chemical industry and petrochemical industry are analyzed, which divides VOC management into intentional and fugitive emission. The Leak Detection and Repair (LDAR) management method and technology for equipment, pipes and valves implemented in the United States are studied to propose self-inspection management methods and measures for VOC emissions in the energy chemical industry, providing strategies and recommendations for energy conservation, emission reduction and cleaner production in the traditional energy chemical industry.

Rheological and physicochemical characteristics of asphalt mastics incorporating lime kiln dust and dolomite powder as sustainable fillers

The filler-bitumen interaction mechanism is one of the most essential phases for comprehending the asphalt mixture's performance.However,despite numerous studies,in-depth knowledge of filler-bitumen reciprocity at a microscale level is yet to be ascertained.The goal of this research is to gain a better understanding of the fillerbitumen microscale interaction in terms of the synergy and coaction between the physicochemical and rheological performance of mastics due to filler inclusions.The rheological properties of two sustainable mastics,dolomite powder(DP)and lime kiln dust(LKD),together with a neat PEN 60/70 binder,were analysed based on a temperature sweep at elevated temperature conditions.Meanwhile,frequency sweep and multiple stress creep recovery(MSCR)tests were also conducted at pavement serviceability temperature using the dynamic shear rheometer(DSR).Physicochemical tests using a scanning electron microscope(SEM)and energy dispersive X-rays(EDX)were conducted to analyse the impact of parameters such as particle shape,grain size,texture,and chemical compositions.The DSR test results showcased how the incorporation of fillers in asphalt binder considerably improved the performance of the binder in terms of rutting and fatigue.Likewise,its strain and nonrecoverable compliance parameters were substantially reduced at higher filler and binder concentrations.Physical filler attributes of low rigden voids(R.V),high fineness modulus(FM),and high specific surface area(SSA)led to greater interfacial stiffness and elasticity in LKD mastics compared to DP mastics at different loading frequencies and temperature levels.The SEM/EDX results also indicated that the elemental calcium and carbon composition of each filler component,together with its grain morphology,strongly influenced its rheological performance.

Exploration of Detailed Planning Practice of Chemical Industrial Parks under the Background of Territorial Space Planning

With the gradual completion of the overall planning of city and county land space,the detailed planning will be prepared according to the requirements of transmitting and refining the upper planning.Industrial parks are one of the“main forces”of local economic development,and the preparation of their detailed planning will escort their development.The key points of the Control Indicators of Construction Land in Industrial Projectsissued in 2008 and 2023 were compared,and the new requirements for detailed planning under the background of territorial space and the contradictions between the detailed planning of industrial parks and the overall planning of the upper territorial space were sorted out based on the summary of the existing problems in the development of chemical parks.It provides some ideas for the practice of detailed planning of chemical industrial parks under the background of territorial space.

Urban Chemical Industrial Cluster Area Restructuring and Determinants: A Case Study of a Typical Old Chemical Industry Area Along the Yangtze River, China

China is in a transitional period between urban renewal and industrial change.In this period,the focus has been on the suburbanization of enterprises and land transformation in old industrial areas,particularly areas with chemical industries.A life cycle theoretical framework was established to develop chemical industrial zones in the context of urban expansion and land function conversion.The long-term historical processes and mechanisms that transformed a typical old chemical industry area along the Yangtze River,Yanziji Area of Nanjing City were unveiled and comparatively analyzed.The study found that the entire life cycle of the case study area was formed through the combined action of different influencing factors.Traditional industrial location factors played important roles during the rise and continuity of the chemical industry zone,while unconventional environmental regulations and government policies drove its decline and transformation.In the transformation of the old chemical zone,the renewal and redevelopment of industrial land into higher-value residential land is a key link determining the feasibility of government fund compensation and the circulation of capital.These findings demonstrate that regional control and environmental regulation play crucial roles in determining the location of polluting industries and the renewal of urban industrial areas.This research enhances the understanding of the development history and reconstruction of chemical industry clusters and plots within megacities at a finer geographic scale.

SITUATION AND OUTLOOK OF CHINA'S CHEMICAL FERTILIZER INDUSTRY

China has made remarkable progress in Chethecal fertilizer (CF) industryin the past decades. Ih 1995 the output of CF reached 24.97 whllion (M for short)tons. The aggregate consumphon in the past 46 years (from 1949-1995) came to449.68 M tons, including 337.26 M tons produtal domestically and 112.42 M tonsimported from abroad. The rate of selfsrmdency of the industry was about 75percent The demand for the year 2000 is estimated to be 42 M tons. The averaglevel of nutriats contained in China-made CF is 27 percen. Ingh conotrationfertilizers shall be developed as a major means to raise product quality. The averagecontent of nutnents will increase up to 32 percat by 2000. The reduction of energyconsumption and the upgrading oftechnology and equipment shall be another aspectwhich should be heded for China's CF industry in the future.

A Survey on Chemical Hazards and Liver Function in Rubber Industry Workers in Iran

Rubber industries workers are at risk of hepatic dysfunction from exposure to rubber dust and a mixture of different hydrocarbons. This study aimed to evaluate the relation between chemical hazards in workplace and serum hepatic transaminases in rubber industry workers in Iran. This historical cohort study was conducted in a rubber-manufacturing industry in Mashhad. It con-sisted of 91 workers with chemical substances exposure and 85 workers not exposed to chemicals. Hepatic transaminases including alanine transaminase (ALT) and aspartate transaminase (AST) were compared between these two groups. Required data were collected through questionnaire, liver enzymes evaluation, and environmental monitoring of chemical substances. The data were analyzed with SPSS 11.5. A total of 176 workers enrolled in this study included 113 (64.2%) male and 73 (35.8%) female. The mean of age and employment duration in exposed group were 29.22 ± 3.99 and 5.41 ± 2.77 and in non-exposed group were 30.33 ± 4.11 and 5.29 ± 2.77 respectively. The mean of ALT in exposed and non-exposed groups was 31.3 ± 8.04 and 23.8 ± 10.42 (p = 0.01) and the mean of AST was 29.6 ± 9.7 and 27.3 ± 8.2 (p = 0.1) respectively. A significant difference was shown between mean of ALT at the date of employment and at the time of the study in exposed group. According to our findings evaluation of serum transaminases is a useful screening method which might be beneficial in early detection of hepatocellular injuries in rubber industry workers.

Status and Suggestion for Modern Coal Chemical Industry and Coal Clean Technology

Coal is fossil fuel abundant and widespread all over the world. It is a vital resource for energy security in our country, because the supply is stable. In this paper, the important role of coal played in the total primary energy supply was described, and the status of modern coal chemical industry and clean coal technologies was analyzed. Based on the scientific research experiences of author, strategy and suggestion for Chinese development were proposed according to the regulation of scientific panning. In China, there are more social benefits and strategic meaning for developing the coal high-efficiency utilization technology. Considering of the general situation of our countries, these technologies with the features of can be industrialized, advanced, applicative, mature and feasible should be developed preferentially. The high-expend, low economic effectiveness and behindhand technologies should be abandoned. So, the development of coal clean technology in China should meet the natural resources, restrictive condition and elements of our countries industry situations. Based on these analysis, the most important technologies and fundamental researches should be prior developed in China.

China's Chemical Industry:Scientific and Technical Goals Set for the Ninth Five-Year Plan

China’s chemical industry is an important industrial sector in the national economy, closely related to other sectors and consumer markets. The industry produces agricultural chemicals made from coal, petroleum, natural gas, natural ore and biological substances, in addition to organic and inorganic raw materials, compound materials, fine chemicals, and chemicals for special purposes. The industry also uses

Guangzhou Huali Pigment Chemicals Industry Co.

China is a major exporter of lithopone, occupying 70% of the international market. In the 1990s the Guangzhou Huali Pigment Chemicals Industry Co. grasped the opportunity to revamp its installation to produce 50,000 tons of lithopone from the former output of 30,000 tons each year. It ranks first place among the enterprises of the same trade in the world. Its annual exports are 20,000 tons, 1/4 of China’s total. The company pays close attention on the namebrand strategy. The Baiyun-

The Impact of Global Financial Crisis on China Chemical Fiber Industry and Response Strategies (Part Ⅱ)

Prospects of Global Financial Crisis and Economic Crisis The widely spreading global financial crisis has halted the fast growth of world economy in five consecutive years,and heavily stricken the financial and economic sectors worldwide.It’s second only to the "Great Depression" in the 1930’s.Governments

China＇s Progress for Modern Coal-chemical Industry

介绍了我国现代煤化工项目的投产情况以及近年来取得的自主技术装备广泛应用、带动资源地区经济转型发展等业绩;指出煤化工产业仍存在工艺技术需进一步优化、产业布局难度大、环境保护和碳排放压力大、盈利能力受能源价格影响大等问题;提出扎实做好已投产示范工程达标达产、适时推进升级示范工程有序建设的发展趋势。

2018 petroleum & chemical industry development report

In 2018,the petroleum and chemical industries of China achieved steady economic growth.The main business income of the entire industry was 12.4 trillion CNY,an increase of 13.6%over the previous year.The total profit was 83.93 billion CNY,an increase of 32.1%over the previous year.The total national oil and gas production reached 334 million tons of oil equivalent,increasing by 2.4%year-on-year.Among the total production,crude oil production was 189 million tons,decreased 1.2%,and natural gas production was 161.02 billion cubic meters,increased 7.5%year on year.Imported crude oil production was 462 million tons,an increase of 10.1%over the last year.Imported gas production was 125.72 billion cubic meters,increased 31.9%.The annual processing capacity of crude oil was 604 million tons,up by 6.8%.The refined oil production was 360 million tons,up by 3.6%.The industry structure was optimized for production growth in 2018,the transformation and upgrading of enterprises and products structure adjustment were sped up,energy efficiency was improved,and overall industrial benefit was rebounded.At present,the economic operation of the industry is still not very stable,and downward pressure is still great,mainly being reflected in the overcapacity of some industries,high cost operation of enterprises,increased tax burden,and weak investment.With the slow recovery of the global economy and the key support of high-quality development through technological innovation,it is expected that the petroleum and chemical industry of China will achieve the general objective of steady growth in 2019.

Heterogeneous catalysis under flow for the 21st century fine chemical industry

Due to metal leaching and poor catalyst stability, the chemical industry's fine chemical and pharmaceutical sectors have been historically reluctant to use supported transition metal catalysts to manufacture fine chemicals and active pharmaceutical ingredients. With the advent of new generation supported metal catalysts and flow chemistry, we argue in this study, this situation is poised to quickly change. Alongside heterogenized metal nanoparticles, both single-site molecular and single-atom catalyst will become ubiquitous. This study offers a critical outlook taking into account both technical and economic aspects.

Advances in Chemical Engineering-A Review of Petrochemical Industry in China

Chemical engineering has played an important role in the development of petrochemical industry. Some important advances in chemical engineering have been discussed in detail, i. e. petroleum refining, organic chemicals,synthetic resin, synthetic fibers and relevant raw materials, synthetic rubber, and process energy integration. The main business targets of China Petroleum & Chemical Corporation (SINOPEC Corp.) and the focus of further researches are also addressed.

Remediation of Pulp and Paper Industry Effluent Using Electrocoagulation Process

Electrocoagulation of pulp and paper industry effluent with SS-304 electrode has been carried out under varying process variable such as pH, current density, time and dose of electrolyte to find out the optimum conditions. Maximum reduction efficiency of Chemical Oxygen Demand (COD) 82% and color more than 99% from pulp and paper industry wastewater at the following conditions pH = 7, current density = 24.80 mA/cm2 time = 40 min and dose of electrolytes = 1.0 g/L. Moreover, effects of electrolytes dosage on electricity consumption were observed and found to be that NaCl is better in comparison of Na2SO4 in respect of lower down the electricity consumption. But application of NaCl causes the formation of hazardous compounds as secondary pollutants within treated water. Therefore, Na2SO4 could be a potent replacement of NaCl to enhance the conductivity of paper industry effluent treated by EC process. The treated water has been compared with standard of Central Pollution control board (CPCB) and World Health organization, and found to be suitable for the reuse in irrigation.