Chinese︱Feedback︱Save this page

Login︱Register

• Elaborating Academic Views 　　　　 • Exchanging Innovative Ideas
• Protecting Intellectual Properties 　　• Fast Sharing Science Papers

Sponsored by the Center for Science and Technology Development of the Ministry of Education
Supervised by Ministry of Education of the People's Republic of China

Home > Papers > Chemical-Engineering

There are 102 papers published in subject: since this site started.

Results per page:

102 Total, 11 Pages | << First < Previous 6 7 8 9 10 11 Next > Last >>

Select Subject

All (8831)

Agronomy (158)

Animal Husbandry,... (64)

Aquatic Science (16)

Astronomy (36)

Aviation (22)

Basic Medicine (184)

Biology (504)

Chemical Engineering (103)

Chemistry (635)

Civil and Archite... (105)

Clinical Medicine (236)

Computer Science ... (924)

Dynamic and Elect... (121)

Earth Science (119)

Economics (67)

Education (31)

Electrics, Commun... (927)

Energy Science an... (67)

Engineering and T... (15)

Environmental Sci... (140)

Food Science and ... (63)

Forestry (36)

Hydraulic Enginee... (40)

Mechanics (240)

Metallurgical Eng... (32)

Mine Engineering ... (38)

Nuclear Science a... (21)

Pharmacy (98)

Physics (920)

Preventive Medici... (37)

Psychology (20)

Security Science ... (17)

Sports Science (6)

Surveying and Map... (15)

Textile Science a... (16)

Traditional Chine... (56)

Transportation En... (57)

Second-level Subject

Basic Subject of Chemical...(9)
Biochemical Engineering(11)
Chemical Machinery and Eq...(4)
Chemical Measurement Tech...(0)
Chemical Reaction Enginee...(21)
Chemical Separation Engin...(21)
Chemical System Engineering(5)
Chemical Transfer Process(1)
Coal Chemical Engineering(2)
Electrochemical Engineering(6)
Fine Chemical Engineering(1)
Fur and Leather Working T...(7)
Organic Chemical Engineering(2)
Other Subjects of Chemica...(2)
Paper Making Technology(1)
Petroleum Chemical Engine...(4)
Pharmaceutical Engineering(2)
Polymer Engineering(4)

Rank

Results per page:

102 Total, 11 Pages | << First < Previous 6 7 8 9 10 11 Next > Last >>

Alert Name:
Alerting to:
Authentication email will be sent to your email address in 24 hours
Frequency:
Email Message Format:	Plain text Graphical(HTML)

Complete the form below and we will recommend the selected titles to your friends on your behalf. * Indicates a required field.
Your name*:
Your email address*:
Recipient's name*:
Recipient's email address*:
(multiple recipient's names and email addresses should be separated with semicolons)
Your comments:	I thought you would find the page(s) useful.

Your name:
Your email address:
Recipient's name:
Recipient's email address:
(multiple recipient's names and email addresses should be separated with semicolons)
Your comments:	I thought you would find this page useful.

Disclaimer: This message was sent to your friend using the "Send it to a friend" facility on the Sciencepaper Online’ WWW site, http://www.paper.edu.cn/en. The Sciencepaper Online is not responsible for the content of this email, and anything said in this email does not necessarily reflect the Sciencepaper Online's views.


	1. Study on Solid-liquid Equilibrium of p-nitrotoluene in Carbon Tetrachloride, Acetone, Acetic Acid and Toluene
	Zhenxi Jiang,Xianyan Yuan,Xiaowei Cao,Baozeng Ren
	Chemical Engineering 14 May 2008
	Show/Hide Abstract \| Cite this paper︱Full-text: PDF (0 B)

	Abstract:Using a dynamic method which was designed and installed with computer and laser monitor on line, the solubility values of p-nitrotoluene in carbon tetrachloride, acetone, acetic acid and toluene were measured at temperatures ranging from 284.33K to 315.94K at atmospheric pressure. The experimental data were correlated with Apelbat equation. Results indicated that the method was available and the data obtained were acceptable.
	TO cite this article:Zhenxi Jiang,Xianyan Yuan,Xiaowei Cao, et al. Study on Solid-liquid Equilibrium of p-nitrotoluene in Carbon Tetrachloride, Acetone, Acetic Acid and Toluene[OL].[14 May 2008] http://en.paper.edu.cn/en_releasepaper/content/21376


	2. Molecule simulation for the feedstock of FCC gasoline secondary reactions by SOL combined with MC method
	Chen Chun,Yang Bolun,Yuan Jun
	Chemical Engineering 18 January 2008
	Show/Hide Abstract \| Cite this paper︱Full-text: PDF (0 B)

	Abstract:For the sake of reducing the olefin content and upgrading quality of FCC gasoline, the gasoline feedstock will pass through series of secondary reactions in a riser reactor. In order to completely analyze this process in theory, the properties of feedstock should be simulated in the molecule level. In this work, the feedstock was converted as molecule vector matrix by Structure Oriented Lumping (SOL), and the Monte Carlo (MC) method was employed to produce each molecule vector. Three samples of catalytic cracking gasoline which were taken from the industrial FCC units of China have been used to test the usefulness of proposed simulation method, and the properties of these samples were predicted. The predicted results agreed well with the feedstock analytical data.
	TO cite this article:Chen Chun,Yang Bolun,Yuan Jun. Molecule simulation for the feedstock of FCC gasoline secondary reactions by SOL combined with MC method[OL].[18 January 2008] http://en.paper.edu.cn/en_releasepaper/content/18215

Saved Papers

Saved Papers


	3. Lattice Boltzmann Simulation on Flow in Porous Medium of Ceramic Filter
	Sun Meiyu,Ji Zhongli ,Chen Honghai
	Chemical Engineering 24 December 2007
	Show/Hide Abstract \| Cite this paper︱Full-text: PDF (0 B)

	Abstract:The lattice Boltzmann method (LBM) is applied to simulate three dimensional flows through ceramic matrixes. The simplified structures are generated randomly by computer. As a test of the lattice Boltzmann code, the relation between pressure drop and superficial velocity in porous medium is obtained which agrees well with Darcy’s Law. Local velocities of different pores are also analyzed. The velocity distributions are approximate to parabolas. Calculation results show that the Darcy number increases along quadric curves with the increase of sphere diameter and porosity.
	TO cite this article:Sun Meiyu,Ji Zhongli ,Chen Honghai. Lattice Boltzmann Simulation on Flow in Porous Medium of Ceramic Filter[OL].[24 December 2007] http://en.paper.edu.cn/en_releasepaper/content/17318


	4. Effect of Promoter MgO on CeO2/Al2O3 Oxygen Carrier Used in Partial Oxidation of Methane to Syngas
	liu mingchun,Wang Hua,Wei Yonggang,Li Kongzhai
	Chemical Engineering 21 December 2007
	Show/Hide Abstract \| Cite this paper︱Full-text: PDF (0 B)

	Abstract:Promoter MgO on 10％CeO2/Al2O3 oxygen carrier was investigated for direct partial oxidation of methane to syngas in molten salt. The contents of 0.5%, 1%, 2%, 3% and 4%MgO on the 10％CeO2/ Al2O3 oxygen carriers in experiments were prepared at the temperature of 750℃, respectively. The methane conversion, H2 and CO selectivity were measured on these prepared oxygen carriers at different reaction temperatures. The results showed that the 3% MgO on 10％CeO2/Al2O3 had the best activity, and the CH4 conversion and CO selectivity reached 92.58% and 87.64% at 875℃, respectively. The effect of different preparation temperatures on 3% MgO as promoter on 10％CeO2/Al2O3 oxygen carrier was investigated. The results of BET indicated that 3％ MgO as promoter had the largest surface area at 750℃, and the results also indicated that （and）the higher calcined temperature had a negative effect on oxygen carrier activity.
	TO cite this article:liu mingchun,Wang Hua,Wei Yonggang, et al. Effect of Promoter MgO on CeO2/Al2O3 Oxygen Carrier Used in Partial Oxidation of Methane to Syngas[OL].[21 December 2007] http://en.paper.edu.cn/en_releasepaper/content/17224


	5. Multicompartment Micelles Formed from Star-Dendritic Triblock Copolymers in Selective Solvents: A Dissipative Particle Dynamics Study
	Dahuan Liu,Chongli Zhong
	Chemical Engineering 17 December 2007
	Show/Hide Abstract \| Cite this paper︱Full-text: PDF (0 B)

	Abstract:Dissipative particle dynamics method was used to study the multicompartment micelles formed from star-dendritic triblock copolymers in selective solvents, in which particular attention was paid to the effects of dendritic structure. The simulations show that the dendritic structure not only influences the morphology and the formation process of multicompartment micelles formed, but also the response of the micelle structure to solvent quality. The information obtained is useful for the future design of multicompartment micelles for practical applications, especially in the field of drug delivery.
	TO cite this article:Dahuan Liu,Chongli Zhong. Multicompartment Micelles Formed from Star-Dendritic Triblock Copolymers in Selective Solvents: A Dissipative Particle Dynamics Study[OL].[17 December 2007] http://en.paper.edu.cn/en_releasepaper/content/17035


	6. Dissipative particle dynamics study of multicompartment micellar solutions in a slit
	Yuanyuan Cui,Dahuan Liu,Chongli Zhong
	Chemical Engineering 17 December 2007
	Show/Hide Abstract \| Cite this paper︱Full-text: PDF (0 B)

	Abstract:Multicompartment micelles are a new family of micelles that may find wide applications; however, due to their complexity, the knowledge on them is quite limited to date. In this work, dissipative particle dynamics simulations were performed to investigate the morphology and structure of multicompartment micellar solutions confined in two hydrophilic walls, as a function of slit width. The results show that pore width can influence largely the morphology and structure of multicompartment micellar solutions confined in hydrophilic walls, the commonly observed “confinement-induced alignment” also occurs in multicompartment micellar solutions, and confinement can induce new morphologies, which can also speed up and enhance the formation of large multicompartment micelles. In addition, this work shows that a strong external field can change the alignment of multicompartment micelles, leading to new well-defined ordered structures. The information obtained may be useful for experimental investigations, as well as for understanding multicompartment micelles at molecular level.
	TO cite this article:Yuanyuan Cui,Dahuan Liu,Chongli Zhong. Dissipative particle dynamics study of multicompartment micellar solutions in a slit[OL].[17 December 2007] http://en.paper.edu.cn/en_releasepaper/content/17023


	7. EVALUATION OF ENVIRONMENTAL IMPACT OF TYPICAL LEATHER CHEMICALS. PART I：BIODEGRADABILITY OF FATLIQUORS UNDER ACTIVATED SLUDGE
	Sun Danhong,He Qiang,Zhang Wenjun,Liu Xin,Shi Bi
	Chemical Engineering 14 December 2007
	Show/Hide Abstract \| Cite this paper︱Full-text: PDF (0 B)

	Abstract:Leather processing is associated with employment of many kinds of chemicals. These chemicals are usually used excessively in tanneries to ensure the quality of leathers. As a result, a part of the chemicals would inevitably remain in the tannery wastewater and form major pollutants of the leather industry. Biological treatment plays a significant role in removing these chemicals from wastewater and, in fact, biodegradability of these chemicals is directly related to their environmental friendliness. Recently, we have been undertaking a systematic evaluation of biodegradability of typical leather chemicals so as to characterize their environmental impact as exactly as possible. In this paper, the biodegradation behaviours of six typical fatliquor components, including sulfated castor, sulfated neat foot oil, sulfated fish oil, lecithin, chlorinated paraffin and alkyl sulfonyl chloride, were investigated. It has been found that four of them, sulfated castor, neat foot oil, fish oil and lecithin, can be effectively degraded by the activated sludge from the wastewater treating yard of tannery, which suggests that these four kinds of fatliquors are suitable to be used in leather making in consideration of their environmental friendliness. However, two other kinds of fatliquors, chlorinated paraffin and alkyl sulfonyl chloride, can not be degraded by activated sludge, and the presence of alkyl sulfonyl chloride in wastewater will lead to poisoning of activated sludge, which indicates that these two kinds of fatliquors should be limited in use.
	TO cite this article:Sun Danhong,He Qiang,Zhang Wenjun, et al. EVALUATION OF ENVIRONMENTAL IMPACT OF TYPICAL LEATHER CHEMICALS. PART I：BIODEGRADABILITY OF FATLIQUORS UNDER ACTIVATED SLUDGE[OL].[14 December 2007] http://en.paper.edu.cn/en_releasepaper/content/16961


	8. EVALUATION OF ENVIRONMENTAL IMPACT OF TYPICAL LEATHER CHEMICALS. PART II：BIODEGRADABILITY OF ORGANIC TANNING AGENTS UNDER ACTIVATED SLUDGE
	Sun Danhong,He Qiang,Zhang Wenjun,Wang Yulu,Shi Bi
	Chemical Engineering 14 December 2007
	Show/Hide Abstract \| Cite this paper︱Full-text: PDF (0 B)

	Abstract:The biodegradability of typical organic tanning agents, including aromatic syntans, aldehydic tanning agents and acrylic tanning agents, were investigated. The results showed that the biodegradation behaviors of these leather chemicals are closely associated with their chemical structures, molecular weights and compositions. Therefore, different organic tanning agents might result in different environmental impacts even though they belong to the same type of tanning agent. The four aromatic syntans tested in experiments exhibited low biodegradability in general. Among them, phenol-based syntan was not biodegradable and phenol-sulphone-based syntan produce a strong inhibitory effect on respiration of activated sludge. Comparatively, naphthalene-based syntan was somewhat easier to be biodegraded than other aromatic syntans. In the cases of aldehydic tanning agents, both formaldehyde and glutaraldehyde were not biodegradable and were toxic to organisms in activated sludge. Thus, they have potential hazardousness to inhibit biodegradation of other organic compounds in wastewater. However, an aliphatic aldehydic tanning agent tested in experiments was biodegradable and showed no toxicity to microorganisms in activated sludge. As for acrylic tanning agents, experimental results indicated that commercial anionic products have no negative effect on biodegradation activity of activated sludge but they themselves were hardly biodegraded. Whereas, cationic acrylic tanning agents have potential to inhibit activated sludge process when presented at a high concentration.
	TO cite this article:Sun Danhong,He Qiang,Zhang Wenjun, et al. EVALUATION OF ENVIRONMENTAL IMPACT OF TYPICAL LEATHER CHEMICALS. PART II：BIODEGRADABILITY OF ORGANIC TANNING AGENTS UNDER ACTIVATED SLUDGE[OL].[14 December 2007] http://en.paper.edu.cn/en_releasepaper/content/16928


	9. EVALUATION OF ENVIRONMENTAL IMPACT OF TYPICAL LEATHER CHEMICALS. PART III：BIODEGRADABILITY OF VEGETABLE TANNIN EXTRACTS UNDER ACTIVATED SLUDGE
	He Qiang,Sun Danhong,Liu Xin,Lin Wei,Shi Bi
	Chemical Engineering 14 December 2007
	Show/Hide Abstract \| Cite this paper︱Full-text: PDF (0 B)

	Abstract:The short-term (5d) and long-term (30d) biodegradation behaviours of black wattle, bayberry, valonia and chestnut tannin extracts were systematically investigated in this paper. The results indicated that all of these four vegetable tannin extracts are biodegradable although the biodegradation process might be retarded by them to some extent, owing to the inhibitory effect of tannins on the activated sludge process. Short-term biodegradabilities of the four tannin extracts were concentration-dependent. These tannin extracts could be effectively biodegraded in 5 days when their concentrations were 0.25g/L, but the biodegradation process was remarkably retarded when the concentrations of tannin extracts were increased to 5.00g/L. In general, short-term biodegradabilities of the four tannin extracts follow the sequence of valonia tannin>chestnut tannin>bayberry tannin>wattle tannin, implying that the hydrolysable tannins are easier to be biodegraded than the condensed tannins. The results of long-term biodegradation showed that all of the four vegetable tannin extracts can be completely biodegraded with the prolongation of the activated sludge process, even if they are presented in wastewater at high concentration. Therefore, the encouraging findings in this research suggest that vegetable tannin extracts are environmentally friendly leather chemicals in consideration of their biodegradability.
	TO cite this article:He Qiang,Sun Danhong,Liu Xin, et al. EVALUATION OF ENVIRONMENTAL IMPACT OF TYPICAL LEATHER CHEMICALS. PART III：BIODEGRADABILITY OF VEGETABLE TANNIN EXTRACTS UNDER ACTIVATED SLUDGE[OL].[14 December 2007] http://en.paper.edu.cn/en_releasepaper/content/16920


	10. Activities of surface-active broths produced by isolated microbes for application in enhanced oil recovery
	Wang Feng,Du Guocheng,Yan Qun,Cui Zhenggang
	Chemical Engineering 13 August 2007
	Show/Hide Abstract \| Cite this paper︱Full-text: PDF (0 B)

	Abstract:The biosurfactant-producing strains designated as DTYF-14, DTYF-15 and WXJY-13 isolated from soil samples can significantly reduce the surface tension and the interfacial tension of water / n-nonane. The whole broths of strain DTYF-14, DTYF-15 and WXJY-13, formulated with chemical surfactant HABS, not only reduced the amount of HABS but also widened the concentration range of NaOH needed for producing ultra-low interfacial tension between the reservoir water and the crude oil of Daqing oil field.
	TO cite this article:Wang Feng,Du Guocheng,Yan Qun, et al. Activities of surface-active broths produced by isolated microbes for application in enhanced oil recovery[OL].[13 August 2007] http://en.paper.edu.cn/en_releasepaper/content/14515

	Check out RSS, or use RSS reader to subscribe this item