To take a clean technology as a strategy for pollution control in industry

A clean technology in thermal power station by adding of limestone into coal for getting the co-melted compounds was studied. Comparing with conventional technology, the quantity of ash discharged is decreased from 85% to 15%, the water consumption is 80% less than traditional method. The slag discharged could be used as raw materials for cement and bricks. In addition, the SO2 content is decreased as well.

Studies on Barriers for Promotion of Clean Technology in SMEs of China

After more than 10 years efforts on awareness raising and promotion, the concept of cleaner production (CP) has been adopting as a strategic approach to balance economic benefits and environmental protection for China’s industries. However, it is also found that clean technology is difficult to be adopted and implemented in Chinese Small and Medium-sized Enterprises (SMEs) because of certain barriers. This paper investigates these barriers among three stakeholders--governments, enterprises and experts. The Analytic Hierarchy Process (AHP) was employed to prioritize the relative importance of the twenty fine-selected barriers, which were classified into four barrier categories. The findings reveal that the exterior barriers of policy and financial barriers should be stressed rather than the inner barriers of technical and managerial barriers, although they are also very important. Absence of incentives on economic policies, lax enforcement of environmental regulations and high initial capital cost were the most important barriers to adoption of Clean Technologies (CT) in China.

Next Investment Spree Venture capitalists and private investors target China’s clean technology, medical and 3G services markets

chinese economic growth accelerated in the second quarter of this year as a massive stimulus package paid off. Accordingly,

The Research Advance and Trend Analysis of the Crystallization Cleaning Technology of Salt Lake Brine Pump in China

Salt Lake brine pump is one of the key equipment in salt lake brine extraction device.As the salt lake brine is a kind of high concentration solution with a variety of chemical constituents,the flow and agitation of saturated

Call for Papers 2011 IEEE International Conference on Smart Grid and Clean Energy Technologies

2011 IEEE International Conference on Smart Grid and Clean Energy Technologies （IEEE ICSGCE2011） will be held in September 27-30, 2011 in Chengdu, China. IEEE ICSGCE2011 is sponsored by the Institute of Electrical and Electronic Engineers （IEEE）, Journal of Electronic Science and Technology （JEST - International）, and University of Electronic Science and Technology of China （UESTC）. The Conference is also supported by University of Wollongong （Australian） and China Energy Association （CEA）.

2011 IEEE International Conference on Smart Grid and Clean Energy Technologies

2011 1EEE International Conference on Smart Grid and Clean Energy Technologies （IEEE ICSGCE2011） will be held in September 27-30, 2011 in Chengdu, China. IEEE ICSGCE2011 is sponsored by International Association of Computer Science and Information Technology （IACSIT）, Journal of Electronic Science and Technology （JEST - International）, the Institute of Electrical and Electronic Engineers （IEEE）, and University of Electronic Science and Technology of China （UESTC）. The Conference is also supported by University of Wollongong （Australian） and China Energy Association （CEA）.

Prospect of Clean Coal Technologies to be Used in Fujian Province Power Industry

This paper is based on the existing status and development prediction of Fujian power industry, and describes that the structure of energy sources for generating power which will mainly use coal, will not be changed in the 2010s and 2020s in Fujian Province. In order to meet the requirements of high efficiency and envirofimental protection, the usage of clean coal technologies for power generating will be an inevitable option and the technologies will occupy the important position in Fujian power industry. This paper puts forward the staged targets and measures of developing and utilizing clean coal technologies, suggests that all government depotments related should give support and guarantee in policies and conditions, and welcome technical and economic cooperation at home and abroad, which is good for co-development of both parties.

Gasification of lignite from Polish coal mine to hydrogen-rich gas

The efforts of the world research activities involved in clean coal technologies development focus to a considerable extent on integrated hydrogen and power generation technologies based on coal gasification.As an alternative to combustion pro-cesses,gasification offers increased efficiency,lower negative environmental impact as well as wider application range of the main product—synthesis gas—in power generation and chemical syntheses.In order to select the most optimal lignite for the purpose of gasification,it is necessary to determine coal reactivity,the key parameter characterizing how fast the fuel reacts with the gasifying medium and controlling its process ability in thermochemical conversion to energy and/or energy carriers.This paper presents the experimental results of oxygen/steam gasification of lignite coal char in a fixed bed reactor under atmospheric pressure and at the temperature of 700,800 and 900℃;the samples come from an open pit lignite mine in the southwest of Poland.The effectiveness of the gasification process was tested in terms of the total gas and hydrogen yields,gas composition,carbon conversion rate and chars reactivity.

Call for Papers

The electric industry is being transformed from a centralized network to one that is less centralized and allows more consumer interaction in the form of a smart grid. A smart grid is a power transmission and distribution network that can incorporate millions of sensors all connected through an advanced, two-way communications and data acquisition system to provide real-time monitoring, diagnosis and control. Smart grid enables more efficient, reliable and secure energy service, facilitate grid-integration of renewable systems and energy storage, and better routing of power and demand management. The move to a smarter grid promises to change the industry＇s entire business model and its relationship with all stakeholders, involving and affecting power companies, regulators, energy service providers, technology and automation vendors, and all consumers of electric power.

Performance and sustainability overview of alkali-activated self-compacting concrete

Self-compacting concrete(SCC)has gained huge attention recently due to its high workability which eliminates the need for vibration and makes its placement easier compared to conventional concrete.However,the production of Portland cement(PC)which is the main binder in SCC is energy-intensive and one of the major contributors to the world’s carbon dioxide emission.On the other hand,the use of alkali-activated binders(AABs)in concrete has been reported to reduce the energy consumption and carbon emission of concrete by more than 50%.Therefore,the use of AAB as a binder in SCC can help to achieve an eco-friendlier concrete.This paper gives a short overview of the performance of SCC made with AABs.The effect of various factors on the performance of alkali-activated self-compacting concrete(AASCC)was discussed and a simplified sustainability assessment of AASCC was carried out.Discussions from this paper showed that AASCC with acceptable fresh and hardened properties can be achieved with the proper selection of materials.In addition,the evaluation of the embodied energy and carbon of different types of concrete showed that AASCC is more sustainable.However,more research in this field is required to encourage its universal acceptance and large-scale application.

Effects of regenerative mechanical vibration on the mechanical integrity of ceramic diesel particulate filters

In this study, the effects of mechanical vibration on the mechanical properties of ceramic diesel particulate filters(DPFs) were investigated. The goal is to determine how the mechanical vibration used in the regenerative ash cleaning process for these filters affects their mechanical integrity during subsequent reuse. Both virgin and vibrated DPF samples were subjected to compressive and 3-point flexural loading at three different loading rates along axial and tangential directions. Statistical analysis was conducted to determine the significance of variation in the compressive and flexural strengths of the DPFs as a result of exposure to mechanical vibration. The results show that there is no statistically significant difference in both compressive and flexural strengths of the virgin DPFs and the DPFs subjected to the same level of mechanical vibration typically used in ash cleaning of DPFs. When the intensity of vibration was doubled, the drop in compressive strength became statistically significant, but less than 10% under axial loading. However, no drop in flexural strength was observed for DPFs subjected to this high intensity of mechanical vibration. The safe threshold for mechanical vibration of ceramic filters is considered to be much higher than that currently used in vibration-based ash cleaning process.

Coal decarbonization:A state-of-the-art review of enhanced hydrogen production in underground coal gasification

The world is endowed with a tremendous amount of coal resources,which are unevenly distributed in a few nations.While sustainable energy resources are being developed and deployed,fossil fuels dominate the current world energy consumption.Thus,low-carbon clean technologies,like underground coal gasification(UCG),ought to play a vital role in energy supply and ensuring energy security in the foreseeable future.This paper provides a state-of-the-art review of the world's development of UCG for enhanced hydrogen production.It is revealed that the world has an active interest in decarbonizing the coal industry for hydrogen-oriented research in the context of UCG.While research is ongoing in multiple coal-rich nations,China dominates the world's efforts in both industrial-scale UCG pilots and laboratory experiments.A variety of coal ranks were tested in UCG for enhanced hydrogen output,and the possibilities of linking UCG with other prospective technologies had been proposed and critically scrutinized.Moreover,it is found that transborder collaborations are in dire need to propel a faster commercialization of UCG in an ever-more carbon-conscious world.Furthermore,governmental and financial support is necessary to incentivize further UCG development for large-scale hydrogen production.