A system for resource recycling of sulfur dioxide includes a charcoal reduction furnace, a high temperature dust remover, a cooling separator A, a liquid sulfur tank, a cooling separator, a tail gas absorption tower, a gas stripping tower, a hypo reactor, a centrifuge, a mother liquor tank and a thickener. And a method for resource recycling of sulfur dioxide includes the following steps: (1) preparing elemental sulfur, (2) removing dust from a process gas containing gaseous sulfur, (3) separating elemental sulfur, (4) reabsorbing residual SO.sub.2 gas, (5) purifying sulfur powder, (6) preparing a slurry of cured hypo, (7) performing liquid-solid separation, and (8) preparing an absorption slurry. According to the method, SO.sub.2 gas is reduced into liquid sulfur and sulfur powder, and sodium thiosulfate is coproduced.

A system for recovering natural gas liquid from a source, comprising: a heat exchanger for cooling wellstream fluid directed therethrough; a first separator for receiving the fluid from the heat exchanger for separating liquid and gas; in a first configuration, the gas from the first separator being directed to a turbo-expander for reducing the temperature and pressure of the gas to form a cold fluid; the cold fluid being directed to a second separator for separating liquid and gas; gas from the second separator being directed to the heat exchanger where it flows therethrough for cooling the wellstream fluid; wherein if the turbo-expander is not operating, the first configuration may be a changed to a second configuration to bypass the turbo-expander and direct the gas from the second separator to a Joule-Thomson valve to form the cold fluid.

A modular crude oil refinery (MCOR) is designed for smaller scale deployment with a capacity to process in the range of 3,000-4,000 barrels of crude oil per day in a single production unit and with the potential to scale to over 100,000 barrels per day with linked production units. More specifically, a MCOR includes a low temperature, low pressure primary separation reactor, condensing system and recirculation systems operating in a closed loop configuration that enable the production of both heavy and light hydrocarbon products with substantially no emissions. The MCOR has the capability to receive and process crude-oil feedstocks of varying API gravity and be controlled to produce a variety of both heavy and light products including cleaner-burning bunker fuels, jet fuels, diesel fuels, gasoline fuels and asphalt binders.

Device for extracting water from humid ambient air, the device including a conduit in which successively is incorporated: a compressor to compress the humid ambient air into compressed ambient air, a first condenser to dry the compressed ambient air into dry compressed air, an expansion valve or expander for expanding the dry compressed air into dry expanded air and a second condenser. The first condenser is further configured to direct the wet ambient air through it as coolant for extracting water from the compressed ambient air in a first stage via an outlet or the like. The second condenser is configured to direct the dry expanded air through it as coolant for extracting the water from the humid ambient air in a second stage by means of an outlet or the like.

A method and device are provided for purifying and recycling water vapor from a coal drying process. Included are a temperature-lowering and dehumidifying process, a flash distillation stripping process, and a vacuum condensing process. A condensing tower receives a temperature-lowered exhaust gas with high humidity from a cooling tube and a condensed water of 5˜60° C. from a flash distillation tank, allowing the exhaust gas and the condensed water to contact each other in a vapor-liquid reverse manner, to lower the temperature and dehumidify the exhaust gas. The flash distillation tank performs a vacuum flash distillation to the condensing water pumped therein from the condensing tower. Water vapor of 5˜60° C. evaporated through flash distillation in the flash distillation tank enters into the demisting washer to be dehumidified and then is condensed. The condensed water in the vapor condenser is transferred into a recycled water tank. Non-condensable gas is discharged out.

Vapor flow-diverting devices that re-direct upwardly flowing vapor, for example, in a downward direction across condenser tubes disposed in the upper or top section of a vapor-liquid contacting apparatus, are described. These devices are particularly beneficial in tubular condensers within distillation columns and may be used in combination with other associated equipment (e.g., a deflector plate and divider plate) as well as in combination with the tube surface enhancements to improve the heat transfer coefficient.

A solvent vapor supply apparatus for supplying solvent vapor to a substrate treatment apparatus, includes: a solvent storage which is kept warm at a temperature equal to or higher than a saturation temperature of a solvent stored therein; a precooler which precools the solvent vapor generated in the solvent storage; and a temperature regulator regulates a temperature of the precooled solvent vapor to a target temperature when the solvent vapor is supplied to the substrate treatment apparatus, wherein the temperature regulator supplies the solvent vapor regulated to the target temperature to the substrate treatment apparatus.

[PROBLEM TO BE SOLVED]

A method and apparatus for cooling compressed air include the following. Compressed air is introduced into a vortex tube where cold air and warm air are generated. The cold air and warm air are introduced into a pressure vessel where the temperature and moisture of the compressed air are adjusted. The adjusted compressed air is fed to a downstream side of the pressure vessel. Before the generated cold air and warm air are introduced into the pressure vessel, the warm air is introduced into a pre-pressure vessel disposed at an upstream side of the pressure vessel. The cold air is introduced into a cooling tube or cooling chamber which is disposed inside the pre-pressure vessel which is disposed at the upstream side of the pressure vessel. The warm air is adjusted by cooling. The adjusted warm air is introduced into the pressure vessel from the pre-pressure vessel together with the cold air.

A method is disclosed for recovering a useful gas from a gas mixture including a useful gas and at least one secondary gas. The gas mixture is first compressed and transferred into a pressure vessel where cooling occurs. Then, from the pressure vessel, a secondary-gas containing gas phase is removed and condensed useful gas is transferred into a purification vessel. In the purification vessel, the condensed useful gas is then purified. A plant is disclosed for recovering a useful gas from a gas mixture. Finally, the use of a plant for carrying out a method for recovering a useful gas from a gas mixture is disclosed.

A vertically oriented sulfur condenser may employ a plurality of condenser tubes arranged longitudinally within an exterior casing, a liquid sulfur reservoir at a longitudinal end of the sulfur condenser, and a condenser tube wall of at least one of the plurality of condenser tubes that protrudes into and below a liquid sulfur reservoir. A catalyst may be located within the liquid sulfur reservoir. A liquid sulfur outlet may be located at the liquid sulfur surface. A Claus process gas inlet may be proximate a first end of the plurality of condenser tubes. A first tube sheet may connect to and seal an end of the plurality of condenser tubes proximate a first end of the plurality of condenser tubes. A second tube sheet may connect to and seals with the plurality of condenser tubes and the exterior casing proximate a second end of the plurality of condenser tubes.