A system and method for improving the water quality of a dehydration tower in a purified terephthalic acid device includes a dehydration washing device, a tail gas condensation device communicating with the top of the dehydration washing device, and a water separation device communicating with the tail gas condensation device. The system reduces energy consumption. The tail gas condensation device uses low-pressure vapor of about 0.05 MPa generated by an N.sub.m-th-stage condenser as a heating medium. Working media are water and the low-pressure vapor, and no organic phase is involved in a process, and a reaction is stable and intrinsically safe. The water in the water separation tower is purified water and concentrated water, the purified water is returned to the top of the dehydration tower, and the concentrated water is mixed with a mother liquor and then enters the dehydration tower.

A system, that includes a gas treating system having at least one of (i) an absorption-based system, having at least one absorber, and/or (ii) an adsorption-based system having at least one adsorber. The system further includes a combustion device, operatively coupled to the gas treating system, an Organic Rankine Cycle (ORC) operatively coupled to the combustion device and/or to the gas treating system, and a control module, wherein the control module is configured to cause energy to be diverted from one or more of combustion device exhaust flow, thermal fluid, stripped gas, compressed stripped gas, natural gas, compressed natural gas, ORC propellant, chilled thermal fluid, jacket water fluid, auxiliary cooling water, and/or turbine lube oil, through any of the gas treating system, the combustion device and/or the ORC to provide heat and/or cooling and/or power.

Disclosed herein is a method of regenerating a sorbent of gas in a capture process of said gas, wherein the capture process comprises recirculating the sorbent between a gas capturing system and regenerating reactor system, the method comprising the regenerating reactor system performing the steps of: receiving a solid sorbent to be regenerated, wherein the sorbent is a sorbent of carbon dioxide gas; generating heat by combusting a fuel with an oxidising agent in the presence of a catalyst; regenerating the sorbent by using the generated heat to indirectly heat the sorbent so that the sorbent releases carbon dioxide gas; outputting the regenerated sorbent; and outputting the released carbon dioxide gas. Advantages of the gas capture system include a higher efficiency than known techniques.

A packed bed for a heat exchanger may comprise a frame and a first fin layer disposed within the frame. A second fin layer may be disposed within the frame. A first perforated sheet may be disposed between the first fin layer and the second fin layer. A sorbent material may be disposed within a volume of at least one of the first fin layer or the second fin layer.

In view of above problems, an object of the invention is to provide a primary containment vessel venting system having a structure capable of continuously discharging vapor in a primary containment vessel out of the system and continuously reducing pressure of the primary containment vessel without discharging radioactive noble gases to the outside of the containment vessel and without using an enclosing vessel or a power source. In order to achieve the above object, an nuclear power plant of the invention includes a primary containment vessel which includes a reactor pressure vessel, a radioactive substance separation apparatus which is disposed inside the primary containment vessel and through which the radioactive noble gases do not permeate but vapor permeates, a vent pipe which is connected to the radioactive substance separation apparatus, and an exhaust tower which is connected to the vent pipe and discharges a gas, from which a radioactive substance is removed, to the outside.

A process for producing a carbon dioxide depleted synthesis gas product by steam reforming is provided. The process includes cooling crude synthesis gas stream produced in a main reforming stage in a first cooling device and reacting in a carbon dioxide absorption column, reacting a carbon dioxide loaded absorbent stream from the carbon dioxide absorption column in an absorbent regeneration column, cooling the carbon dioxide enriched hot vapor stream from the absorbent regeneration column in a second cooling device and cooling a carbon dioxide depleted hot absorbent stream from the absorbent regeneration column in a third cooling device. Preheated air streams from the cooling devices are fed as oxidant to the main reforming stage.

An air intake unit, a compressor drawing atmospheric air through the air intake unit into the compressor unit, a cooling unit which cools the compressed air, a filter unit which filters the cooled air, a gas separator which separates the filtered air, a separated gas outlet which receives the separated gas, and a heat exchange apparatus comprising a body having a first fluid inlet and outlet, a second fluid inlet and outlet, a first fluid conduit between the first fluid inlet and outlet, and a second fluid conduit between the second fluid inlet and outlet. The heat exchange apparatus allows heat exchange between conduits and is arranged to receive compressed atmospheric air at the first fluid inlet and supply it from the first fluid outlet to the cooling unit, and receive filtered air at the second fluid inlet and supply it from the second fluid outlet to the gas separator.

In accordance with exemplary inventive practice, a catalytic system and a temperature swing adsorption system are thermally integrated. The temperature range of the adsorption system is lower than the catalyst operating temperature. Benefits of inventive practice include reduction of total energy consumption and of generated waste-heat. Total energy consumption is reduced by transferring some of the waste-heat generated by the catalytic system into the adsorption system during the sorbent heat-up portion of the sorbent regeneration cycle. The heat is transferred using a thermal reservoir, which accumulates heat from the catalytic apparatus and transfers it to the adsorption apparatus at a later time, and which is repeatedly cycled as the sorbent is cycled. The catalytic system and the adsorption system can be inventively integrated in various ways to reduce the total energy consumed, and/or to modify the sorbent regeneration temperature profile, and/or to obtain an optimum power load profile.

A method for integrating a carbon capture process with a process for cement production.

The invention relates to a method for obtaining water from ambient air (14), said method comprising at least the following steps: bringing the ambient air (14) into contact with at least one liquid absorption agent (16) for absorbing at least one part of the water contained in the ambient air (14); conveying an absorption agent (18) diluted by the absorbed water to a first heat exchanger (20); transferring the diluted absorption agent (18) in at least one desorption device (30). Water (42) desorbed in the desorption device (30) is transported to the first heat exchanger (20), the desorbed water (42) being cooled by means of the diluted absorption means (18) by means of the first heat exchanger (20). The invention also relates to a device (10) for obtaining water from ambient air (14).