Based on the analysis of current situation，the development strategy of Chinese energy chemical industry is pointed out. The development should be in line with national strategy of oil security, national strategy of sustainable development and national strategy of independent innovation, and meet the demand of building a conservation-conscious society.

Supercritical fluid extraction is a new and “green”technique for extraction and separation with such advantages as high efficiency, high speed, and less pollution. This paper reviews the on-line detection techniques in supercritical fluid extraction, including supercritical fluid chromatography, gas chromatography, high-performance liquid chromatography, nuclear magnetic resonance, and near infrared spectrometry.

The chemical structure, properties and application of l–menthol are reviewed. The recent advances of its synthesis, chiral resolution, closed loop mechanism and its future development are presented. The synthesis pathway of l–menthol from isoprene is discussed.

A series of activated carbons were prepared from tobacco stems as raw materials and potassium hydroxide as activating agent by a one-step carbonization process. The effects of the preparation variables on the yield and adsorption properties of activated carbon were systematically studied via orthogonal experiments, and the optimum condition was obtained. The iodine value of the activated carbon prepared under the optimum condition was 1198.27mg/g and the methylene blue adsorption was 3 times of that the first grade product specified in the National Standard. Furthermore, the nitrogen isotherm of the sample was determined. The porous structures were investigated with the Horvath-Kawazoe equations and density function theory. The results of the pore structures analysis was consistent with scanning electron microscopy (SEM) and transmission electron microscopy (TEM) study.

The relative molecular weight of chitosan was determined by the relationships of three methods, HPLC, intrinsic viscosity, and dynamics viscosity. The intrinsic viscosity of chitosan solution was measured with one-point Ubbelohde viscometer, the relative molecular weight of chitosan was determined with HPLC, and the MHS equation was obtained as [η] = 3.72 × 10－5Mw 1.37. This paper also sets up the relationship between dynamics viscosity and the molecular weight of chitosan during 10 mg/mL solution degradation by chitosanase.

Novolac was synthesized by using a new catalyst. The effects of the concentration of catalyst, sort of solvents, time of reaction etc. on the content of free phenol generated during the production of Novolac were discussed in the paper. The concentration of free phenol in the waste water was measured by the 4-amino antipyrine method. The results showed that the concentration of free phenol was below 100 mg/kg. An optimized technique was recommended.

This paper discusses the treatment of bagasse black liquor in alkalescent condition. The suitable adsorption and flocculation conditions were as follows: bentonite 120 g/L, dicyandiamide–formaldehyde 6 mL/L, reaction temperature 40 ℃，fast stirring time 2 min and clarification time 25 hours. It was found that N, K and lots of lignin were present in the adsorption and flocculation mud, which could be used as the raw material to prepare organic solid fertilizer. The clarified black liquor could be recycled as the process water.

Based on the life cycle inventory of ethylene production, the life cycle impact assessment was performed, and the overall impact indicator was 1.12×10－10 a－1. According to the life cycle interpretation, the impact of the depletion of non-renewable resources was more than 58% in the overall impact. The life cycle impact assessment of individual pollutants showed that the direct emissions of ethylene and NOx were the main sources of environmental burden, and their shares were both about 1/4.

A two-component, solvent-free, transparent, epoxy resin modified polyurethane adhesive is introduced in this paper. The mechanims of PU/EP synthesis was tracked by IR spectroscopy. The chemical reactions among groups and the change of products with time were analyzed. The result showed that several properties of modified products were greatly improved. Under the suitable raw material ratio and experiment condition, the viscosity, flow ability, stability, storage life, were satisfactory. When PU/EP curing agent was 5∶3, the skin drying time was 45min, the shearing intensity was more than 19MPa, the product was tough, solvent resistant and temperature resistant. During curing process no bubble was created, which was good for usein bonding and sealing.

The effects of pH, temperature, mol ratio of 3,4-dimethyl-benzenesulfonic acid to L-leucine and NH4Cl concentration on the L-leucine precipitation yield by reacting with 3,4-dimethyl-benzenesulfonic acid were investigated. The pH value must be kept lower than 1.5, the optimal mol ratio of 3，4–dimethyl-benzenesulfonic acid to L-leucine was 3∶1. A low temperature was favorable for precipitation, preferably 0C.The yield decreased with the increase of NH4Cl concentration. L-leucine was separated from pig blood hydrolysate after removal of acid, and the precipitation rate was 90.62%. The L-leucine after refinement was in agreement with the standard of Pharmacopoeia of the People’s Republic of China (2000 edition, the second section)。

An experiment was conducted to investigate the treatment of soybean whey with a dual-step ultrafiltration system which consisted of an air blasting enhanced vibratory ultrafiltration (MWCO50kDa) and a cross-flow ultrafiltration (MWCO10kDa). The results revealed that the operation duration of each cycle in the treatment of soybean whey with the dual-step ultrafiltration system reached more than 23h. The protein concentration of soybean whey was reduced from 0.5% to 0.04%; and both total sugar and salinity were retained at a lowered rate of about 10%. The membrane permeate flux of the fouled system was restored to more than 90% by chemical cleaning in 2h. The separation property of the membranes adopted in the system was not changed remarkably during long-term operation. The whey protein obtained in the experiment was a satisfactory product in that the protein concentration was higher than 70% and the salinity was around 10%.

This article summarizes the commercial application of the Z-18 catalyst molecular sieve retarder activator in the residuum fluid catalytic cracking unit (RFCC) of Khartoum Refinery Co. Ltd (KRC). The application result showed that this activator could maintain effectively catalyst activity by adjusting acid sites, consequently reducing coking on the surface of catalyst, and improving product distribution and product quality.

The reasons for worn dry gas seal on T slot, leakage and the short life of application were analyzed for the ammonia plant in Jilin Chemical Industry Company. Revamping with China-made parts was discussed. Applying dry gas seal on a spiral slot could reduce wear of surface, and postpone the life of application.