Tsinghua University

Chang Chun Petrochemical Co., Ltd.

Chang Chun Plastics Co., Ltd.

Other

Taiwan Styrene Monomer Corporation

Chung-Sung Tan

Hao Chen

Arnold Chang-Mou Yang

Wei-Han Hsiao

Wei-Chen Huang

Chun-Chih Chang

Cheng-Hsiu Yu

Hsin-Chih Wang

Yu-Lin Kuo

Young Ku

Wei-Yuan Lu

Wei-Kuo Chin

Hsien-Te Hsieh

I-Hsiang Lin

Jan-Min Yang

Pei-Lun Lee

Yu-Wen Chiu

Shiaw-Tseh Chiang

A catalyst includes a carbon black support and active metal particles. A surface of the carbon black support has a relative atomic percentage of oxygen atoms ranged from 2 atom % to 12 atom %. The active metal particles are distributed on the carbon black support. Each of the active metal particles includes rhodium metal and rhodium oxide. A method for manufacturing the catalyst and a method for hydrogenating an aromatic epoxy compound are also provided herein.

Catalyst and method for manufacturing the same and method for hydrogenating aromatic epoxy compound

A carbon dioxide absorbent composition is disclosed. Based on 100 parts by weight of the carbon dioxide absorbent composition, the carbon dioxide absorbent composition includes 5 to 45 parts by weight of sodium 2-[(2-aminoethyl)amino]ethanesulfonate. Moreover, a method for capturing carbon dioxide using the carbon dioxide absorbent composition is disclosed.

Carbon dioxide absorbent composition and method for capturing carbon dioxide

A method for purifying polybutylene terephthalate (PBT) includes: providing or receiving initial PBT, in which oligomers and tetrahydrofuran are present; dissolving the initial PBT in hexafluoroisopropanol (HFIP) to form a solution, in which the oligomers are also dissolved in the HFIP; and contacting the solution with compressed COat a temperature and a pressure, thereby precipitating the purified PBT, resulting from a large portion of the oligomers are still dissolved in the HFIP, in the operation the temperature is in a range of 20&#xb0; C. to 35&#xb0; C., and the pressure is in a range of 900 psi to 1400 psi. A device for purifying PBT is also provided.

Method and device for purifying polybutylene terephthalate

Provided herein is a method for absorbing COfrom a gas mixture. The method includes using an apparatus comprised of a first RPB unit and a second RPB unit. The first RPB unit and the second RPB unit are arranged to absorb COin a first gas stream and a second gas stream, respectively. A liquid CO-absorbent is supplied sequentially passing through the first RPB unit and the second RPB unit to absorb COin the first gas stream and the second gas stream. The liquid CO-absorbent is regenerated to produce a regenerated CO-absorbent. The regenerated CO-absorbent is transported to the first RPB unit.

Apparatus and method for absorbing a component from a gas mixture using rotating packed bed unit

A method and an apparatus of extracting lipids from microalgae are provided. In the method, pressurized carbon dioxide (CO) is dissolved in a liquid alcohol to form a CO-expanded alcohol solution at a pressure of about 400-1500 psi and a temperature of about 30-65&#xb0; C. Next, the CO-expanded alcohol solution contacts microalgae to extract the lipids from the microalgae. A method and an apparatus of preparing fatty acid esters from microalgae are disclosed as well.

Method and apparatus of extracting lipids and preparing fatty acid esters from microalgae

The present invention discloses a method of applying electric arc furnace dust in chemical looping combustion process, and particularly a method of applying electric arc furnace dust in chemical looping combustion process without releasing of zinc vapor. The method of applying electric arc furnace dust in chemical looping combustion process comprises following steps: (1) providing an electric arc furnace dust and an inert support (AlO) and mixing the electric arc furnace dust and the inert support (AlO) to obtain a mixture of the electric arc furnace dust and the inert support (AlO); (2) calcining the mixture of the electric arc furnace dust and the inert support (AlO) with high temperature to obtain another mixture of FeO, ZnAlO, and AlO; (3) applying the mixture of FeO, ZnAlO, and AlOas oxygen carrier and inert support in a chemical looping combustion process.

Method of applying electric arc furnace dust in chemical looping combustion process

An atmospheric pressure plasma jet device for converting carbon dioxide into organic products by using an atmospheric pressure plasma technique, comprising: an inner electrode made of a conductive metal, and having an insulating layer covering a portion of the inner electrode; a first conductive metal wall surrounding the inner electrode with a predetermined distance apart, such that a cavity is formed between the inner electrode and the first conductive metal wall, and a through hole is formed on a side of the first conductive metal wall, such that a reactant can flow into the cavity; and a diffusing unit including an insulating component and a conductive metal component. Wherein the insulating component is disposed on a side of the insulating layer, and covers another portion of the inner electrode. The conductive metal component further covers the insulating component.

Atmospheric pressure plasma jet device

Hydrophobic metal nanoparticles are prepared by reducing a metal precursor in a non-polar or low polar organic solvent with or without volume expansion by adding CO.

Methods for preparing hydrophobic metal nanoparticles and precursors used therein

The present invention provides a process for preparing a photoanode of a dye-sensitized solar cell (DSSC) by pressure swing impregnation, which includes impregnating a metal oxide layer on a conductive substrate in a photosensitizing dye solution in a vessel; introducing a pressurized inert gas into the vessel to maintain a first pressure therein for a period of time, wherein the first pressure can be lower or higher than the critical pressure of the inert gas and the solution is expanded by the inert gas; further pressurizing the vessel with the inert gas and maintaining at a second pressure higher than the first pressure for a period of time, wherein the inert gas becomes sub-critical or supercritical fluid and dissolves more in the solution, creating an anti-solvent effect, so that the photosensitizing dye further deposits onto the metal oxide layer due to the anti-solvent effect.

Process for impregnating photosensitizing dye onto conductive substrate of photoanode of a solar cell

A method of desorbing a volatile component from a spent adsorbent is disclosed, which includes flowing a stream of supercritical carbon dioxide through a rotating packed bed of the spent adsorbent; and collecting an effluent from the rotating packed bed, which contains supercritical carbon dioxide and the volatile component entrained therein. In one embodiment of the present invention a spent activated carbon from a process for recovering 2,2,3,3-tetrafluro-1-propanol from a gas stream containing 2,2,3,3-tetrafluro-1-propanol is regenerated by flowing a stream of supercritical carbon dioxide through a rotating packed bed of the spent activated carbon.

Method of desorbing a volatile component from a spent adsorbent with rotating packed bed and method of recovering 2,2,3,3-tetrafluro-1-propanol from a gas stream by adsorption

A method for recovering supercritical extractant, such as supercritical CO , from a mixture containing the supercritical extractant and a solute is disclosed, which includes contacting the mixture with a molecular sieve membrane at a temperature and a pressure in a critical region of the extractant and near a critical point of the extractant so that a permeate rich in the extractant and a retentate having a enriched concentration of the solute in the extractant are generated. The molecular sieve membrane has a pore size significantly larger than a size of the extractant provided that the pore size is less than and close to sizes of clusters formed of the solute and the extractant at the temperature and the pressure.

Method for the regeneration of supercritical extractant

A process for separating p-diethylbenzene from a diethylbenzene isomers mixture by selective adsorption of p-diethylbenzene on a silicalite adsorbent is disclosed in the present invention, wherein a compressed high pressure CO.sub.2 or propane is used as a carrier for carrying a fixed amount of the diethylbenzene isomers mixture to the silicalite adsorbent bed for the selective adsorption, a first stage effluent stream containing a rich meta-diethylbenzene (m-DEB) and/or ortho-diethylbenzene (o-DEB), but having substantially no para-diethylbenzene (p-DEB) is eluted from the adsorbent bed; when p-DEB of the mixture starts to appear in the first stage effluent stream, a much higher pressurized CO.sub.2 or propane used as a desorbent is then fed into the adsorbent bed, and a second stage effluent stream conaining a rich p-DEB, but having substantially no other DEB isomers is thereby eluted from the adsorbent bed. The diethylbenzene isomers procucts contained in the first and second effluent streams, respectively, can be easily separated from CO.sub.2 or propane simply by reducing the pressure thereof, wherein the resulting CO.sub.2 or propane can be re-compressed and recycled.

Separation of diethylbenzene isomers on silicalite in the presence of

A process for separating ethylbenzene and p-xylene from a xylene isomers mixture, additional containing m-xylene and o-xylene, by selective adsorption of ethylbenzene and p-xylene on a silicalite absorbent is disclosed in the present invention, wherein a compressed gaseous CO.sub.2 stream is used as a carrier for carrying a fixed amount of the mixture to the adsorbent bed for the selective adsorption, followed by a supercritical CO.sub.2 stream desorption of the adsorbed ethylbenzene and p-xylene from the adsorbent bed. A method for recycling the CO.sub.2 used therein is also disclosedby, which involves an isothermal and isobaric adsorption of the xylene isomer products from the effluent CO.sub.2 streams.

Process for separation of ethylbenzene or ethylbenzene/p-xylene from a

The present invention provides a process for separating ethanol from an aqueous solution by supercritical or near supercritical extraction in combination with reverse osmosis, which includes contacting an ethanol containing aqueous solution with one side of a reverse osmosis membrane in the presence of a supercritical or near supercritical CO.sub.2 having a pressure of 72.8-88.4 atm and a temperature of 26.5.degree.-34.degree. C., wherein the volumetric ratio of the supercritical or near supercritical CO.sub.2 to the ethanol containing aqueous solution is higher than 1.8, and recovering a permeate solution having a lower ethanol concentration from the opposite side of the membrane.

Growing community of inventors

Hsinchu, Taiwan

Chung-Sung Tan