Abstract: A carbon dioxide recovery unit is provided with: an absorption tower for bringing an exhaust gas into contact with a CO2 absorbing liquid to thereby absorb and recover CO2 from the exhaust gas; a regeneration tower for taking out the CO2 from the CO2 absorbing liquid; a CO2 delivery line L3 for delivering the taken-out CO2 to a storage process; and a CO2 return line L5 for returning the taken-out CO2 to the absorption tower. When a CO2 recovery unit and a CO2 compressing device are activated, if a storage process side has some kind of trouble and cannot receive the CO2, a destination part to which the CO2 is delivered from the regeneration tower is switched from the CO2 delivery line L3 to the CO2 return line L5, whereby the CO2 gas is mixed with the exhaust gas in the absorption tower.

Abstract: A regeneration tower 7 of a CO2 recovery unit includes an upper regeneration portion 51 that has a tray portion 45, a lower regeneration portion 52 provided below the upper regeneration portion 51 and having a liquid dispersion portion 46, and a supply line L5 that supplies absorbing liquid stored in the tray portion 45 to the liquid dispersion portion 46. The supply line L5 is provided with a heat exchanger 53, and the absorbing liquid is circulated using the density difference between the absorbing liquid flowing before the heat exchanger 53 and the absorbing liquid flowing after the heat exchanger 53 as a driving force. This reduces the cost of equipment while reducing the power in the delivery of the absorbing liquid in the regeneration portion.

Abstract: SOx removal equipment for reducing sulfur oxides from flue gas from a boiler, a cooler which is provided on the downstream side of the SOx removal equipment, for reducing the sulfur oxides from the flue gas and for decreasing a gas temperature, CO2 recovery equipment which includes an absorber for bringing CO2 in the flue gas into contact with a CO2 absorption liquid so as to be reduced and a regenerator for causing the CO2 absorption liquid to emit CO2 so as to recover CO2 and regenerate the CO2 absorption liquid, and dissolved salt spraying equipment for reducing a mist generation material which is a generation source of mist that is generated in the absorber of the CO2 recovery equipment before introducing the flue gas to the CO2 recovery equipment, are included.

Abstract: The present invention relates to a method of inducing expression of a promoter function of various genes in a Coryneform bacterium related to function exertion, in order to exert the function of a Coryneform bacterium highly and effectively under an anaerobic condition, for producing an organic compound useful under an anaerobic condition, more particularly, provides a method of enhancing and/or suppressing the promoter function related to various genes, for the purpose of highly and effectively expressing various protein genes necessary for production of an objective substance, and suppressing expression of an unnecessary protein gene. The DNA fragment of the present invention is useful as a primer which is introduced into a transformed Coryneform bacterium producing a useful substance such as lactic acid and succinic acid highly and at a high efficiency.

Abstract: Provided is an aniline-producing transformant constructed by introducing a gene which encodes an enzyme having aminobenzoate decarboxylase activity into a coryneform bacterium as a host. Also provided is a process for producing aniline, which comprises a step of allowing the transformant to react in a reaction mixture containing aminobenzoic acid, an ester thereof, and/or a salt thereof under reducing conditions, and a step of recovering aniline from the reaction mixture.

Abstract: Provided is a phenol-producing transformant constructed by transferring a gene which encodes an enzyme having chorismate-pyruvate lyase activity and a gene which encodes an enzyme having 4-hydroxybenzoate decarboxylase activity into a coryneform bacterium as a host. Also provided is a process for producing phenol, which comprises a step of allowing the transformant to react in a reaction mixture containing a saccharide under reducing conditions, and a step of collecting phenol from the reaction mixture.

Abstract: Provided is a phenol-producing transformant constructed by transferring a gene which encodes an enzyme having tyrosine phenol-lyase activity into a coryneform bacterium as a host. Also provided is a process for producing phenol, which comprises a step of allowing the transformant to react in a reaction mixture containing tyrosine, a salt thereof, or an ester thereof under reducing conditions, and a step of collecting phenol from the reaction mixture.

Abstract: Provided is a phenol-producing transformant constructed by transferring a gene which encodes an enzyme having 4-hydroxybenzoate decarboxylase activity into Corynebacterium glutamicum as a host. Also provided is a process for producing phenol, which comprises a step of allowing the transformant to react in a reaction mixture containing 4-hydroxybenzoate or a salt thereof under reducing conditions, and a step of collecting phenol from the reaction mixture.

Abstract: A phenol-producing transformant constructed by transferring a gene which encodes an enzyme having tyrosine phenol-lyase activity into Corynebacterium glutamicum as a host can efficiently produce phenol from a saccharide. Specifically, preferred is a process which comprises a step of reacting the transformant in a reaction mixture containing a saccharide under reducing conditions, and a step of collecting phenol from the reaction mixture.

Abstract: An air pollution control system comprises a SOx removal equipment for reducing sulfur oxides from flue gas from a boiler, a cooler for reducing the sulfur oxides that remain in the flue gas and for decreasing a gas temperature, CO2 recovery equipment including an absorber for bringing CO2 in the flue gas into contact with a CO2 absorption liquid so as to be reduced, a regenerator for causing the CO2 absorption liquid to emit CO2 so as to recover CO2 and regenerate the CO2 absorption liquid, a heat exchanger which for decreasing a temperature of the flue gas, and calcium carbonate spraying equipment for spraying calcium carbonate between the heat exchanger and an electric dust collector, wherein a mist generation material in the flue gas is converted from a gas state to a mist state to arrest and reduce the mist generation material in the mist state using calcium carbonate.

Abstract: SOx removal equipment for reducing sulfur oxides from flue gas from a boiler, a cooler which is provided on the downstream side of the SOx removal equipment, for reducing the sulfur oxides from the flue gas and decrease a gas temperature, CO2 recovery equipment including an absorber for bringing CO2 in the flue gas into contact with a CO2 absorption liquid so as to be reduced and a regenerator for causing the CO2 absorption liquid to emit CO2 so as to recover CO2 and regenerate the CO2 absorption liquid, and demister for reducing a mist generation material which is a generation source of mist that is generated in the absorber of the CO2 recovery equipment before introducing the flue gas to the CO2 recovery equipment, are included.

Abstract: SOx removal equipment for reducing sulfur oxides from flue gas from a boiler, a cooler which is provided on the downstream side of the SOx removal equipment, for reducing the sulfur oxides from the flue gas and for decreasing a gas temperature, CO2 recovery equipment including: an absorber for bringing CO2 in the flue gas into contact with a CO2 absorption liquid so as to be reduced; and a regenerator for causing the CO2 absorption liquid to emit CO2 so as to recover CO2 and regenerate the CO2 absorption liquid, and a wet type electric dust collector for reducing a mist generation material which is a generation source of mist that is generated in the absorber of the CO2 recovery equipment before introducing the flue gas to the CO2 recovery equipment, are included.

Abstract: SOx removal equipment for reducing sulfur oxides from flue gas from a boiler, a cooler which is provided on the downstream side of the SOx removal equipment, for reducing the sulfur oxides from the flue gas and for decreasing a gas temperature, CO2 recovery equipment which includes an absorber for bringing CO2 in the flue gas into contact with a CO2 absorption liquid so as to be reduced and a regenerator for causing the CO2 absorption liquid to emit CO2 so as to recover CO2 and regenerate the CO2 absorption liquid, and dissolved salt spraying equipment for reducing a mist generation material which is a generation source of mist that is generated in the absorber of the CO2 recovery equipment before introducing the flue gas to the CO2 recovery equipment, are included.

Abstract: SOx removal equipment for reducing sulfur oxides from flue gas from a boiler, a cooler which is provided on a downstream side of the SOx removal equipment for reducing the sulfur oxides that remain in the flue gas and for decreasing a gas temperature, CO2 recovery equipment which includes a CO2 absorber, and an absorption liquid regenerator, and mist generation material reduction equipment for reducing a mist generation material which is a generation source of mist that is generated in the CO2 absorber of the CO2 recovery equipment before introducing the flue gas to the CO2 recovery equipment are included.

Abstract: SOx removal equipment for reducing sulfur oxides from flue gas from a boiler, a cooler provided on a downstream side of the SOx removal equipment, for reducing the sulfur oxides that remain in the flue gas and decrease a gas temperature, CO2 recovery equipment including an absorber for bringing CO2 in the flue gas into contact with a CO2 absorption liquid to be reduced, and a regenerator for causing the CO2 absorption liquid to emit CO2 to recover CO2 and regenerate the CO2 absorption liquid, a heat exchanger which is provided on an inlet passage side of the electric dust collector, for decreasing a temperature of the flue gas are included, and a mist generation material in the flue gas is converted from a gas state to a mist state to cause particulates in the flue gas to arrest and reduce the mist generation material in the mist state.

Abstract: SOx removal equipment 15 which reduces sulfur oxides from flue gas 12 from a boiler 11, a cooler 16 which is provided on the downstream side of the SOx removal equipment 15 so as to reduce the sulfur oxides from the flue gas and decrease a gas temperature, CO2 recovery equipment 17 which includes an absorber for bringing CO2 in the flue gas into contact with a CO2 absorption liquid so as to be reduced and a regenerator for causing the CO2 absorption liquid to emit CO2 so as to recover CO2 and regenerate the CO2 absorption liquid, and ammonia injection equipment 22 for reducing a mist generation material which is a generation source of mist that is generated in the absorber of the CO2 recovery equipment before introducing the flue gas to the CO2 recovery equipment, are included.

Abstract: A transformant capable of producing isopropanol which is constructed by transferring the following genes (a) to (d) into an aerobic bacterium or a facultative anaerobic bacterium: (a) a foreign gene which encodes an enzyme having acetyl-CoA acetyltransferase activity; (b) a foreign gene which encodes an enzyme having acetoacetyl CoA:acetate CoA-transferase activity; (c) a foreign gene which encodes an enzyme having acetoacetate decarboxylase activity; and (d) a foreign gene which encodes an enzyme having isopropanol dehydrogenase activity.

Abstract: The multiple zeolite catalyst is a catalytic composition used to convert C9+ alkylaromatic hydrocarbons to BTX, particularly commercially valuable xylenes. The catalyst is formed by mixing at least two zeolites selected from mordenite, beta zeolite, ZSM-5, ZSM-11, ZSM-12, ZSM-22, ZSM-23, MFI topology zeolite, NES topology zeolite, EU-1, MAPO-36, SAPO-5, SAPO-11, SAPO-34, and SAPO-41, and adding at least one metal component selected from Group VIB and Group VIII of the Periodic Table of the Elements. The two zeolites should have different physical and chemical characteristics, such as pore size and acidity. An exemplary catalyst includes mordenite, ZSM-5, and 3 wt. % molybdenum. The transalkylation reaction may be conducted in one or more reactors with a fixed bed, moving bed, or radial flow reactor at 200-540° C., a pressure of 1.0-5.0 MPa, and liquid hourly space velocity of 1.0-5.0 per hour.

Abstract: A transformant capable of producing isopropanol which is constructed by transferring the following genes (a) to (d) into a coryneform bacterium: (a) an exogenous gene which encodes an enzyme having acetyl-CoA acetyltransferase activity; (b) an exogenous gene which encodes an enzyme having acetoacetyl CoA:acetate CoA-transferase activity; (c) an exogenous gene which encodes an enzyme having acetoacetate decarboxylase activity; and (d) an exogenous gene which encodes an enzyme having isopropanol dehydrogenase activity.

Abstract: The multiple zeolite catalyst is a catalytic composition used to convert C9+ alkylaromatic hydrocarbons to BTX, particularly commercially valuable xylenes. The catalyst is formed by mixing at least two zeolites selected from mordenite, beta zeolite, ZSM-5, ZSM-11, ZSM-12, ZSM-22, ZSM-23, MFI topology zeolite, NES topology zeolite, EU-1, MAPO-36, SAPO-5, SAPO-11, SAPO-34, and SAPO-41, and adding at least one metal component selected from Group VIB and Group VIII of the Periodic Table of the Elements. The two zeolites should have different physical and chemical characteristics, such as pore size and acidity. An exemplary catalyst includes mordenite, ZSM-5, and 3 wt. % molybdenum. The transalkylation reaction may be conducted in one or more reactors with a fixed bed, moving bed, or radial flow reactor at 200-540° C., a pressure of 1.0-5.0 MPa, and liquid hourly space velocity of 1.0-5.0 per hour.