The present invention provides: an absorbent liquid for CO2 and/or H2S which is capable of reducing the amount of reboiler heat when the absorbent liquid is recycled; and an apparatus and a method which use this absorbent liquid. An absorbent liquid according to the present invention absorbs CO2 and/or H2S in a gas ...

This exhaust gas processing apparatus 1 is provided with: an exhaust gas line L11, through which flue gases G11 exhausted from a power generation facility 10 flow; an exhaust heat recovery boiler 11 which recovers exhaust heat from the flue gases G11; a branch exhaust gas line L11B provided to be connected between a...

The present invention provides a gas purification device and a gas purification method each of which is capable of efficiently decreasing the carbonyl sulfide concentration in a gas to be processed even in cases where the gas to be processed has a high carbonyl sulfide concentration. This gas purification device 1 i...

The composite amine-absorbing solution according to the present invention absorbs CO2 or H2S or both in a gas and is obtained by dissolving (1) a linear monoamine (2) a diamine and (3) an amide group-containing compound in water. By adopting this composite amine-absorbing solution entangling in a composite manner oc...

A regeneration column 14 for regenerating an acidic gas absorbing liquid is provided with a regeneration column condensing unit 40 for condensing moisture from entrained gas 41 which contains an entrained corrosive substance and acidic gas and is discharged from the top of the acidic gas regeneration column. The reg...

This gas combustion treatment device (10A) performs combustion treatment of an ammonia-containing gas (12), a hydrogen cyanide-containing gas (13), and a hydrogen sulfide-containing gas (14) and is provided with: a first combustion unit (21) into which a fuel (11), ammonia-containing gas (12), hydrogen cyanide-conta...

Provided is a treatment apparatus 100 for wastewater that is produced as a result of energy gas purification and that contains at least ammonium ions. The treatment apparatus 100 includes: decompression equipment 10 for decompressing the wastewater; alkaline-agent addition equipment 20 for adding an alkaline agent t...

A method for detaching a catalyst unit according to one embodiment involves detaching a catalyst unit that is accommodated in a reactor casing of a catalytic reactor, wherein the method comprises a step in which, when the catalyst unit is detached from the reactor casing, which is configured so as to assume a cylind...

This fertilizer production plant 100 is for producing a fertilizer containing urea, the fertilizer production plant 100 being characterized by comprising a urea production device 22 for the purpose of producing urea by using ammonia, and a scrubber 80B having an interior space for the purpose of bringing into contac...

A gas purifier including: a conversion chamber packed with a catalyst for hydrolyzing both carbonyl sulfide and hydrogen cyanide; an upstream-side heat exchanger where a gas which is to flow into the conversion chamber is heat-exchanged with a cooling fluid for gas cooling; a reaction-temperature estimation member f...

Hydrocarbon recovery equipment that comprises: a water wash tower that brings a gas into contact with water and causes hydrocarbons included in the gas to precipitate in the water; an auto-strainer that continuously removes the hydrocarbons and a portion of the water from the water into which the hydrocarbons have b...

This water treatment system (10) is provided with: a waste water introduction part which introduces waste water at a predetermined temperature or more thereinto as water to be treated (W1); reverse osmosis membrane devices (51, 52) which separate the water to be treated (W1) from the waste water introduction part in...

A filtration layer cleaning method for a biological membrane filtration apparatus, which filters raw water using a filtration layer on which a biological membrane has been loaded, backwashes the filtration layer using backwash water comprising a concentrate obtained by separation of filtration layer-filtered water u...

This water treatment system (10) is provided with: a water intake pipe (P1) wherein seawater (W) flows; a sand filtration device (21) which is provided on the downstream side of the water intake pipe (P1) and filters the seawater (W) supplied by the water intake pipe (P1); a connecting pipe (P3) connected to the san...

Provided is an osmosis membrane device equipped with: a sealant located between the primary-side protrusion surface of a primary-side main body and a filter membrane; a flat protective member located between the sealant and the filter membrane and extending on a surface of the filter membrane at least from a portion...

This exhaust gas processing apparatus 1 is provided with: an exhaust gas line L11-1, through which flue gases G11-1 of a power generation facility 10-1 flow; an exhaust gas line L11-2, through which flue gases G11-2 of a power generation facility 10-2 flow; exhaust gas exhaust lines L12-1, L12-2 which are provided t...

This exhaust gas treatment device is provided with: a nitrogen oxide absorption part 13 into which an exhaust gas 11 containing nitrogen oxide and carbon dioxide is introduced so that the nitrogen oxide in the exhaust gas 11 is absorbed and removed by means of a nitrogen oxide absorbing liquid 12; a nitrogen oxide a...

The exhaust gas processing system according to the present invention comprises: a reduction device 14 that reduces iron oxide 11 into reduced iron 13 by adding a reducing agent 12; an acidic gas recovery device 21 that recovers CO2 which is an acidic gas using a CO2 absorbing liquid 20 which is an acidic gas-absorbi...

A water treatment system (100) is provided with: a pretreatment device (1) which generates primary treated water by performing a pretreatment on water to be treated; a membrane separation device (2) having a reverse osmosis membrane through which the primary treated water is passed to be separated into concentrated ...

Provided is a method for evaluating performance of a water treatment device provided with a plurality of main vessels that are arranged in parallel to each other and that each have a reverse osmosis film for separating to-be-treated water into concentrated water and permeate water the method comprising: a specificat...

A cleaning method for a filter device that has deposits of a polymer flocculant deposited at an entrance part of a filter layer thereof. The cleaning method comprises: a step for supplying a cleaning liquid that includes an alkaline solution into the filter device such that at least the entrance part of the filter l...

Provided are: a catalyst for use in the hydrolysis of COS, which can improve a COS conversion rate at a low temperature; and a method for producing the catalyst. A catalyst for use in the hydrolysis of COS, wherein the catalyst comprises a catalyst containing titanium dioxide supported on a barium compound and an au...

This tube leakage detection device, which detects a leak in at least one tube of a heat exchanger that raises the temperature of a liquid flowing inside the at least one tube by causing an exchange of heat between the liquid and a fluid flowing on the outside of the at least one tube, is provided with: an inlet-side...

A catalytic reactor according to one embodiment comprises: a catalyst unit including at least one catalyst, the catalyst unit having a honeycomb structure in which a plurality of flow paths extending in the axial direction are formed; a reactor casing that accommodates the catalyst unit; and a seal plate that blocks...

The present invention includes: a first heat exchanger 11 for performing heat exchange between a purified gas, which is obtained by removing at least ammonia and hydrogen chloride from a gasified gas, and vapor at a saturation temperature; a second heat exchanger 12 for performing heat exchange between the gasified ...

An exhaust gas cooler that comprises: an economizer that exchanges heat between exhaust gas and first water; and water supply pipes that are for supplying second water that has a lower temperature than the first water into the first water. The second water is separately supplied into first water that flows out of th...

The absorption solution regeneration device comprises: a regeneration tower for the purpose of separating CO2 from an absorption solution that has absorbed the CO2, to regenerate the absorption solution; a main rich solution line for the purpose of supplying to the regeneration tower the absorption solution that has...

The absorption solution regeneration device comprises: a regeneration tower for the purpose of separating CO2 from an absorption solution that has absorbed the CO2, to regenerate the absorption solution; a main rich solution line for the purpose of supplying to the regeneration tower the absorption solution that has...

An absorbing liquid according to the present invention absorbs CO2, H2S, or both present in a gas, and includes, as components, a (a) secondary linear monoamine, a (b) tertiary linear monoamine, and a (c) secondary cyclic diamine, with the concentration of the (a) secondary linear monoamine being more than 30 wt% to...

This water treatment device (10) is provided with: a filtration device (21) having a filter material layer (21f) for performing filtration of seawater (W) supplied from the upstream side; a washing water tank (81) that can supply washing water (Ws) to the filtration device (21) from the downstream side of the filter...

Provided is a reverse osmosis membrane processing method that includes the following: a step for separating raw water into permeated water and concentrated water via a reverse osmosis membrane; and a step for supplying to the reverse osmosis membrane adjusted salt concentration water in which the salt concentration ...

This water treatment system is provided with: a preprocessing unit (20) for filtering seawater that is supplied; a reverse osmosis membrane processing device for seawater for separating filtered seawater into concentrated water and fresh water; a detection unit (25) for detecting a water quality evaluation value for...

This CO2 recovery device is provided with: a CO2 absorption tower 13 which removes CO2 from a CO2-containing exhaust gas 11 by means of a CO2 absorption liquid 12; an absorption liquid regeneration tower 16 which regenerates the CO2 absorption liquid 12; a rich solution supply line L11 which supplies a rich solution...

A gas purifier which comprises an ammonia removal part where some of the ammonia contained in a first gas is removed, a first-offgas collection part where a first offgas, which contains the ammonia removed in the ammonia removal part, is collected, a hydrogen sulfide/ammonia removal part where hydrogen sulfide and a...

A off gas processing device according to the present invention, which processes an off gas that contains ammonia, is provided with: an ammonia scrubber which brings the off gas and an absorption liquid that contains carbonated water into a gas-liquid contact with each other; and a stripper which removes ammonia and ...

Provided are a catalyst for hydrolysis of COS which is capable of maintaining a high COS conversion ratio even when used for a long period, and a production method for the same. This catalyst for hydrolysis of COS contains titanium dioxide and a barium compound supported on titanium dioxide. When the moles of Ba and...

A composite amine absorption solution according to the present invention is an absorption solution capable of absorbing CO 2 or H 2 S or both of them in a gas, and is prepared by dissolving (1) a linear monoamine, (2) a diamine and ( 3) a compound specified by chemical formula (I), eg, a propylene glycol alkyl ether...

A wet-type ammonia cleaning apparatus for treating a basic gas containing ammonia, the apparatus comprising: an ammonia scrubber that causes gas-liquid contact between the basic gas and an absorption liquid containing carbon dioxide; and fine bubble generating devices for producing the absorption liquid from carbon ...