628 results about "Produced water" patented technology

The utility model belongs to the technical field of sewage treatment, and particularly relates to a coalescence air floatation oil removal device for oil and gas field wastewater treatment, which is characterized in that a cyclone sand remover, an oil particle coalescence layer, a micro air floatation device, an oil discharge device and a water discharge pipe are sequentially arranged in a shell from bottom to top, and an exhaust device is arranged at the upper part of one side of the shell; a sewage inlet pipe is arranged on the lower portion of one side of the shell and connected to the feeding end of the cyclone desander. Oily sewage passes through the cyclone sand remover to remove large-particle-size silt, then passes through the oil particle coalescence layer, tiny oil particles gradually form an oil film on the surface of a coalescence material, after the oil film reaches a certain thickness, the oil film is deformed into large oil droplets which are sufficient to be separated and rise from a water phase, and then oil drops and suspended flocs in the oily sewage are removed through the micro air flotation device. Finally, floating oil enters the oil discharging device to be discharged, the oil-removed sewage is discharged through the water discharging pipe, oil-water separation is completed, the oil removal purpose is achieved, the oil removal effect is better, the sewage treatment effect is improved, and the water quality of produced water is improved.

The invention discloses sewage treatment equipment and method for oil field thickened oil produced water. The equipment comprises pretreatment equipment, main body equipment, dissolved gas supply equipment and a water outlet pump. Main body equipment comprises barrel equipment, and a flotation cyclone used for achieving the functions of dissolved air flotation and cyclone separation at the same time, separating out large-particle suspended solids through centrifugal force difference and achieving floating of oil drops through microbubble adsorption surfaces is sequentially arranged on the inner portion of the barrel equipment from top to bottom. The coalescence filler layer is made of oleophylic and hydrophobic core-shell structure fibers, and emulsified oil is promoted to polymerize and break emulsion through surface energy difference; and the inclined plate sedimentation device adopts an inclined tube labyrinth surrounding structure, performs deep sedimentation by utilizing a laminar flow principle, and further removes oil drops formed after coalescence.

A method to perform oil in produced water analysis allows measuring the large volume of oil in produced water reliably. In the method, a time-series and physics based machine learning model of a gas oil separation plant is generated, advisory actionable items for maintaining a crude oil quality within a pre-determined threshold are generated based on machine learning model coefficients and outputs of soft sensors, and then the advisory actionable items are presented to a user.

The invention discloses a lime coagulation and clarification treatment system and method based on intelligent dosing, and belongs to the technical field of water treatment.The system comprises an efficient softening coagulation and clarification unit and an intelligent monitoring unit, a lime milk intelligent preparation unit, an intelligent dosing control unit and a sludge dewatering unit which are connected with the efficient softening coagulation and clarification unit. The efficient softening, coagulation and clarification unit is formed by sequentially connecting a wastewater regulating tank, a first-stage rapid mixing tank, a second-stage slow flocculation and concentration tank, a tubular membrane intelligent filtering device and a produced water neutralization tank; the intelligent monitoring unit collects incoming water and produced water data and transmits the data to the intelligent dosing control unit; the intelligent lime milk preparation unit is used for preparing and adding lime milk; the intelligent dosing control unit realizes intelligent dosing; and the sludge dewatering unit is used for treating the discharged sludge and returning the sewage. Intelligent monitoring, self-adaptive control, prediction algorithm and softening coagulation clarification are realized, the problems of inaccurate dosing, large water quality fluctuation and low automation degree of a traditional system are solved, and the system is suitable for scenes such as reclaimed water deep treatment and industrial wastewater treatment.

The invention relates to the technical field of bearings, and provides an anti-impact hydrostatic bearing air supply system which comprises a first air supply subsystem and a second air supply subsystem, the first air supply subsystem comprises a first pipeline, a first check valve and a reaction mechanism, the reaction mechanism is connected with the first pipeline, and the first check valve is arranged on the first pipeline; the second gas supply subsystem is connected with the first pipeline and is used for being connected with the hydrostatic bearing; the reaction mechanism can generate chemical reaction when the hydrostatic bearing bears strong external impact, and water vapor is generated and enters the hydrostatic bearing. According to the anti-impact air supply system for the hydrostatic bearing, when the hydrostatic bearing bears severe impact, chemical reaction occurs in the reaction mechanism, a large amount of high-temperature and high-pressure water vapor is generated, the water vapor pushes the first check valve to be opened so as to enter the hydrostatic bearing, the bearing capacity of the hydrostatic bearing is improved, and collision between the rotor and the hydrostatic bearing is avoided.

The invention discloses an all-working-condition air water production unit, which belongs to the technical field of air water production, and comprises a high-humidity air inlet channel, a low-humidity air inlet channel, a channel switching device and a water production channel, and the high-humidity air inlet channel and the low-humidity air inlet channel are both communicated with the water production channel; air flowing out of the high-humidity air inlet channel or the low-humidity air inlet channel enters the water production channel so that the water production channel can produce water. According to the invention, the high-humidity operation mode or the low-humidity operation mode is automatically switched according to the air inlet humidity. A traditional unit can only operate under a single working condition. According to the invention, the optimal energy efficiency and water production rate can be kept in different environments.

The utility model provides a process system for recycling electroplating comprehensive wastewater, which relates to the technical field of wastewater treatment and is characterized in that a liquid inlet of a primary electrodeionization device is communicated with a primary wastewater treatment unit, and a fresh water outlet of the primary electrodeionization device is communicated with a secondary wastewater treatment unit; a concentrated water outlet of the first-stage electrodeionization device is communicated with the second-stage electrodeionization device; a fresh water outlet of the secondary electrodeionization device is communicated with the primary electrodeionization treatment device, and a concentrated water outlet of the secondary electrodeionization device is communicated with the solid-liquid separation device; a liquid outlet of the solid-liquid separation device is communicated with the evaporation device; the evaporation device comprises a condensed water outlet and a byproduct salt outlet, and the condensed water outlet is communicated with the secondary wastewater treatment unit; a produced water outlet of the secondary wastewater treatment unit is communicated with the produced water collecting tank; a waste liquid outlet of the second-stage wastewater treatment unit is communicated with a second-stage electrodeionization device, so that pollutants such as heavy metal ions and organic matters in wastewater can be removed, and cyclic utilization of water resources and recovery of salt resources are realized.

The disclosure relates to methods for determining an amount of seawater, an amount of aquifer water, and an amount of original reservoir water in a produced water sample using oxygen and hydrogen isotope ratios. An 18O / 16O ratio (δ18O) and a D / H ratio (δD) are measured for a seawater sample, an aquifer water sample, and an original reservoir water sample and are used to make a mixing model. δ18O and δD are measured in a produced water sample and the mixing model can be used to determine the amounts of each constituent in the produced water sample.

The present invention relates to systems and processes for utilizing produced water and captured carbon dioxide to produce high-value products. The system includes a produced water processing system, a carbon capture system, an electrolyzer, and a conversion chamber. The electrolyzer includes a first chamber, a second chamber, and a semi-permeable membrane and first electrode in the first chamber and a second electrode in the second chamber. The first chamber receives treated saturated produced water. The second chamber is operated at a second operating pressure that is less than the first operating pressure and facilitates the passage of sodium ions across the membrane. A current is applied to the electrodes such that the first electrode functions as an anode and the second electrode functions as a cathode, producing hydrogen gas and sodium hydroxide in the second chamber and chlorine gas in the first chamber. The polarity of the electrodes and the flow of reagents into the first and second chambers and the flow of products out of the first and second chambers may be reversed.

The utility model provides a sodium percarbonate oxidation reinforced low-pressure membrane method shale gas wastewater treatment system, and relates to the technical field of wastewater treatment. The sodium percarbonate oxidation reinforced low-pressure membrane method shale gas wastewater treatment system comprises a contact oxidation reaction tank, a low-pressure membrane unit and a water production unit, wherein the contact oxidation reaction tank is provided with a sodium percarbonate oxidizing agent adding pipeline and supply equipment for providing an activating agent for activating a sodium percarbonate oxidizing agent; the low-pressure membrane unit comprises a low-pressure membrane reaction tank and a membrane assembly arranged in the low-pressure membrane reaction tank, a water outlet of the contact oxidation reaction tank is communicated with a water inlet of the low-pressure membrane reaction tank, and the low-pressure membrane reaction tank is connected with a water outlet pipeline; the produced water unit comprises a produced water overflow pool and a produced water collecting pool, a water inlet of the produced water overflow pool is communicated with the water outlet pipeline, and a water outlet of the produced water overflow pool is communicated with the produced water collecting pool. The system can reduce membrane pollution in the process of purifying the shale gas wastewater by the low-pressure membrane and improve the wastewater treatment effect.

The utility model discloses a central water treatment filtering device for desalted water production. A raw water inlet pipe of a reservoir is communicated with a water inlet pipeline of each filter; the ultrafiltration processors are connected in series; a water outlet of each filter is communicated with a water inlet pipeline of the first-stage ultrafiltration treater; a water outlet of the N-stage ultrafiltration treater is communicated with a water inlet pipeline of the filtered water storage tank; a water outlet of the filtered water storage tank is communicated with a water inlet pipeline of the primary reverse osmosis processor; all stages of reverse osmosis processors are connected in series, and water outlets of the N stages of reverse osmosis processors are communicated with a demineralized water storage tank pipeline. According to the device, the content of various pollutants in water entering the ultrafilter can be reduced, a filter element for ultrafiltration and reverse osmosis can be protected, the content of various impurity ions in the water after ultrafiltration is reduced, the conductivity of produced water is about 10 us / cm, the hardness is 0.01 mol / L or below, the produced water is used for supplementing water for a steelmaking and steel rolling heating furnace, and generated steam can be used for power generation of a steam turbine. Water consumption is reduced, resources are saved, and the accumulation speed of scale in the boiler is effectively reduced.

The invention discloses a method and system for producing regenerated activated carbon based on carbonized material activation heat supply coupling, and relates to the technical field of activated carbon. Comprising the following steps: adding dried waste activated carbon and a preheated carbonized material into a vertical multi-section activation furnace to obtain an activated product; the tail gas of the vertical multi-section activation furnace is combusted and fed into a waste heat boiler to produce water vapor; heating is stopped after the vertical multi-section activation furnace is heated to the activation temperature, and then activation self-sustaining heat balance is formed by means of the following heat sources: combustion heat release of volatile matter in a carbonized material, combustion heat release of H2 / CO generated by water vapor activation reaction, oxidation combustion heat supply of waste activated carbon adsorbate and combustion heat supply of non-condensable combustible gas generated by dehydration of waste activated carbon dry waste gas; the carbonized material and the waste activated carbon enter the same activation furnace device in a synergistic compatibility manner, the carbonized material and the waste activated carbon interact with each other, the activation effect is improved, and the vertical multi-section activation furnace can realize self-sustaining heat balance, so that the energy cost is greatly reduced.

The invention relates to the technical field of oil-gas-water treatment equipment, in particular to an oil-gas-water on-site treatment integrated device which comprises an oil-gas-water separator and a cyclone separator, and the oil-gas-water separator comprises a free water separation cavity, a produced water buffer cavity, a low-water-content oil buffer cavity, a first-stage air floatation cavity, a second-stage air floatation cavity, an inclined plate cavity, a floating oil cavity and a water purification cavity; the cyclone separator is communicated with the free water separation cavity; a low-water-content oil buffer cavity is arranged below the produced water buffer cavity; air flotation center cylinders are arranged in the first-stage air flotation cavity and the second-stage air flotation cavity; a floating oil cavity is arranged below the inclined plate cavity; the purified water cavity is connected with a purified water outlet pipe; the purified water outlet pipe is connected with the dissolved air pump, the dissolved air pump is further connected with the oil-gas-water separator and the bubble filter, the top of the bubble filter is communicated with the top of the oil-gas-water separator, and the side faces of the bubble filter are connected with the two dissolved air releasers respectively. According to the invention, a station is formed by one skid, oil-gas-water three-site treatment is realized, the technological process occupies a small area, intensification is realized, the auxiliary process is simplified, and the working efficiency is high.

The application provides an oilfield produced water treatment method. The method comprises the following steps: adding a polymeric aluminum ferric silicate solution into oilfield produced water to be treated, and stirring for a period of time at a first rotating speed; increasing the first rotating speed to a second rotating speed, adding a polyacrylamide solution, stirring for a period of time at the second rotating speed after the addition is completed, and then standing for a period of time; and filtering to obtain treated oilfield produced water. The method has the advantages of simplicity, high efficiency, low cost, easy operation, remarkable treatment effect and the like.

The invention provides a combined system and method for killing sulfate reducing bacteria in oilfield produced water. The combined system comprises an active oxygen solution sterilization unit, an oil removal tank, a coagulative precipitation tank, a filtering tank and a deoxidation tower, the active oxygen solution degerming unit comprises a partitioned excitation plasma reactor, a high-flux gas-liquid mixing and dissolving device, a decompression reactor and an oxygen tank; the partition excitation plasma reactor is used for ionizing and dissociating oxygen to generate oxygen active groups; the high-flux gas-liquid mixing and dissolving device is used for carrying out gas-liquid mixing and dissolving on water to be treated and oxygen active groups to generate an active oxygen solution; a water outlet of the high-flux gas-liquid mixing and dissolving device is connected to the reduced pressure reactor, water to be treated and an active oxygen solution fully react in the reduced pressure reactor, and sulfate reducing bacteria in the water to be treated are killed. The technical scheme provided by the invention solves the problems that the treatment effect of microorganisms in the oilfield produced water is undesirable, large-scale popularization cannot be realized, and the method is harmful to human bodies and the environment.

The invention discloses a composite electric field catalytic oxidation synergistic oil and gas field produced water treatment method which comprises the following steps: acquiring an electric flocculation effect generated by a corrosion-resistant titanium-based coating anode and a stainless steel cathode under optimized pulsed electric field parameters through a turbidity sensor and a particle size analyzer, and superposing low-frequency pulses in a composite pulse mode, maintaining the temperature of the reactor to be 20-40 DEG C in combination with a temperature control system to obtain initial floc particle size distribution and concentration data; the concentration state of the floc in the concentration tank is monitored by adopting a conductivity sensor according to the amount of the floc in the concentration tank treatment pollution discharge scheduling scheme, the content of remaining oil drops and suspended solids is analyzed in combination with an emulsion monitoring module, and the water quality parameter change of the concentration tank is recorded through a data analysis system, so that a final water quality treatment result is determined.

This invention discloses a high-efficiency integrated treatment system for produced water from oilfields, comprising an oily wastewater settling filter and an oily wastewater filter coalescer connected in sequence. The oily wastewater settling filter includes a filter tank, a settling separation mechanism, and a paper tape filter mechanism. The settling separation mechanism is located in the upper part of the filter tank, and the paper tape filter mechanism is installed on the filter tank. The oily wastewater filter coalescer includes a shell and a filter coalescing cartridge assembly. The shell includes a cartridge installation section, an inlet distribution section, and a flotation separation section. The technical solution of this invention uses the oily wastewater settling filter as a pre-treatment device and the oily wastewater filter coalescer as a post-treatment device. The organic combination of the two improves the system's effectiveness (good effluent quality indicators and stable performance) while also enhancing its economy (low construction cost and low operating cost) and environmental performance (low energy consumption and low generation of secondary oily waste).

The invention discloses a membrane contactor-membrane distillation device and method for shale gas produced water treatment, and relates to the technical field of water treatment and resource recovery, the membrane contactor-membrane distillation device comprises a membrane contactor system and a membrane distillation system, and the membrane distillation system and the membrane contactor system are connected through a first water outlet tank; the membrane contactor system comprises a water inlet tank, a membrane contactor membrane assembly and a water outlet tank I, the water outlet tank I is connected with the membrane contactor membrane assembly through a water outlet pipeline, and the membrane contactor membrane assembly is connected with the water inlet tank through a water inlet pipeline; the membrane distillation system comprises a membrane distillation membrane assembly and a second water outlet tank. According to the membrane contactor-membrane distillation device and method for treating the shale gas produced water, the membrane contactor system realizes selective and efficient recovery of ammonia by adjusting the pH value of wastewater and circularly absorbing by using a phosphoric acid solution; the membrane distillation system is used for carrying out advanced treatment on the effluent of the membrane contactor after fully absorbing ammonia, and high-quality fresh water is produced under the driving of the temperature difference between heating and condensation.

A flowback produced water stream is received from a hydraulically fractured well formed in a subterranean formation. The flowback produced water stream includes water, dissolved solids comprising divalent cations, and carbon dioxide. The flowback produced water is flowed to a membrane. The membrane separates at least a portion of the dissolved solids from a remaining portion of the flowback produced water to produce a waste stream and a filtered produced water stream. The filtered produced water stream is reacted with an alkali hydroxide to precipitate carbonates from the carbon dioxide molecules and the divalent cations, thereby mineralizing the carbon from the filtered produced water stream into carbonate precipitates. The carbonate precipitates are separated from a remainder of the filtered produced water stream.

The utility model discloses a sulfur-containing gas field produced water gas stripping integrated device which comprises a gas field water pump and a gas stripping tower which are connected with each other, a water inlet which is used for introducing gas field gas and is connected with an outlet of the gas field water pump is arranged at the upper part of the gas stripping tower, and a gas stripping nitrogen gas incoming line pipe which is connected with an air nitrogen station system is arranged at the lower part of the gas stripping tower; a gas stripping gas outlet pipeline connected with a purification station sulfur recovery unit is arranged at the top of the gas stripping tower, a gas field water output pipeline connected with a sewage treatment device is arranged at the bottom of the gas stripping tower, and the underground gas field water tank introduces gas field water from the separator through a gas field water inlet pipeline; a first outlet in the top of the underground gas field water tank is connected with an inlet of the gas field water pump through an acid water pipe, and a flash evaporation mechanism is arranged in the underground gas field water tank and connected with a second outlet of the underground gas field water tank and a gas stripping gas outlet pipeline. The device has the advantages of good desulfurization effect, factory prefabrication and convenience in site construction, and can be widely applied to the technical field of desulfurization.

The technology relates to the use of a high salinity produced water stream from a gas oil separation plant (GOSP), as a wash water stream for the desalter unit in a GOSP. The produced water stream is pretreated by a sequence of steps and subsequently desalinated by a ultra-high pressure reverse osmosis (UHP-RO) membrane. The UHP-RO produces a permeate stream and a reject stream. A portion of the permeate stream is reused as a wash water stream in the desalter unit of the GOSP.

An inventive system and method for treatment of contaminated produced water from fracking operations. The inventive system includes a filtration unit, an electrolysis unit, and a cavitation unit. The filtration unit may comprise mesh filtration units or reverse osmosis filtration units. The electrolysis unit may include alternative anode and cathode plates, where the anode plates have a mixed metal oxide coating. Each of the filtration, electrolysis, and cavitation units preferably comprise two or more of each arranged in parallel, such that each can be operated independently without stopping the operation of the entire system. The system and method may further include separation tanks and / or dissolved air flotation tanks—either before or after the electrolysis unit or cavitation unit processing.

The invention relates to a closed multi-stage air flotation oil removal device and method for oilfield produced water, which are characterized in that a primary cyclone air flotation separation zone, a secondary cyclone air flotation separation zone, a bubble enrichment flotation separation zone, a micro-spin flocculation flotation separation zone and a purified water buffer zone are sequentially arranged in a closed tank body, and crude oil in the oilfield produced water is subjected to separation extraction and cascade separation; the separation efficiency is high and the effect is good; the functions of multi-stage treatment, buffering, oil collection, pollution discharge and the like of produced water are integrated, the equipment integration degree is high, the size is small, the number of supporting facilities is small, and the occupied area is small; and the operation cost is low.

The invention discloses a system and a method for efficiently removing iron from make-up water of an offshore heavy oil thermal recovery boiler. The structure of the system is as follows: an electrochemical reactor, a compact cyclone air floater, a heat exchanger, an inorganic ultrafiltration membrane, a primary reverse osmosis membrane, an ion exchanger membrane and a thermal deaerator are connected in sequence; and the compact cyclone air floater is also connected with a bypass inlet for inputting seawater / geothermal water. The method comprises the following steps: seawater / geothermal water is introduced into an electrochemical reactor in the system and is treated by a compact cyclone air floater, a heat exchanger, an inorganic ultrafiltration membrane, a primary reverse osmosis membrane, an ion exchanger and a thermal deaerator in sequence, and produced water meets the water inlet requirement of an offshore thermal recovery boiler. The method comprises the following steps: oxidizing ferrous ions in water into iron ions through an electrochemical reactor, and then adjusting the pH value to convert the iron ions into ferric hydroxide; according to the present invention, the electrochemical oxidation is performed on the incoming water, the generated strong oxidizing free radicals can demulsify the dissolved oil in the water, and then the oil is removed in the cyclone air flotation so as to reduce the pollution of the oil to the rear end membrane;

A method of treating an aqueous solution, where the method includes separating H2S from the aqueous solution, generating a gas stream including the H2S, flowing the gas stream into a plasma reactor, igniting a plasma in the plasma reactor including the gas stream, decomposing the H2S to generate H2 and elemental sulfur in the plasma generating a product gas stream including the H2, and condensing the elemental sulfur from the product gas stream as a liquid.

The invention discloses a secondary water supply self-purification device in the technical field of secondary water supply. The device comprises two non-negative pressure tanks which are arranged up and down side by side, partition plates are arranged in the tanks to form two independent filter cavities, and filter elements are convenient to maintain in cooperation with detachable end sockets; water path communication is achieved through the water inlet manifold and the produced water manifold, and the water outlet manifold is connected with the water-cooled silent full variable frequency pump for pressurization water supply. The backwashing system utilizes a control system to control an electric three-way valve to switch the water flow direction so as to realize alternate backwashing of a filter cavity, and a backwashing water source comes from self pressurized water of the system without external power. The device ensures pure water quality and uninterrupted water supply through an efficient filtering and continuous water supply mechanism; secondly, the water-cooled mute full variable frequency pump effectively reduces energy consumption and noise and is suitable for mute sensitive areas; furthermore, due to the optimized backwashing system design, extra space occupation and energy consumption are avoided, and backwashing operation is simple and convenient; and finally, the whole equipment adopts a box-type integrated structure, so that the installation and the maintenance are convenient.

Embodiments of the present disclosure can include a system for harvesting salt and generating distilled water from at least one of a produced water and salt water, comprising. A direct steam generator (DSG) can be configured to generate saturated steam and combustion exhaust constituents from the at least one of the produced water and salt water. A separation system can be configured to separate the salt from at least one of the saturated steam and combustion exhaust constituents in brine form or solid form. An expansion turbine can be configured to recover energy from the steam and combustion exhaust constituents.

The utility model discloses a fracturing water fine treatment device and a filter barrel thereof, the fracturing water fine treatment device comprises an outer barrel, an inner barrel is arranged in the outer barrel, the inner barrel is provided with a produced water blending device, at least two flocculation basins and at least one clean water basin are arranged between the outer barrel and the inner barrel, and each clean water basin is positioned between two adjacent flocculation basins; the inner barrel is provided with a liquid discharge pipe communicated with the flocculation basin; a first-type partition plate is arranged between every two adjacent flocculation tanks, a second-type partition plate is arranged between the clean water tank and the flocculation tanks, and the second-type partition plate is lower than the first-type partition plates. When the device is cleaned and maintained, the device can work, so that the production halt time caused by cleaning and maintenance is shortened, and the production efficiency is improved.

The utility model relates to the technical field of water collection and distribution device machining, and discloses a machining device for water collection and distribution device production, which comprises a bottom plate, two fixing plates are fixedly connected to the top side of the bottom plate, two clamping blocks are connected to the bottom side of the bottom plate through sliding assemblies, and a plurality of telescopic rods are arranged on the sides, away from each other, of the two clamping blocks. A plurality of springs are arranged on the sides, close to each other, of the two fixing plates, one ends of the springs are connected with the interiors of the telescopic rods, the other ends of the springs are connected with the sides, close to each other, of the two fixing plates, a water collecting and distributing device body is arranged on the sides, close to each other, of the two clamping blocks, and the water collecting and distributing device body is connected with the two fixing plates through a cleaning assembly. According to the utility model, the rejection rate is reduced, the production efficiency and the product quality are improved, the influence of sweeps on subsequent processing or use is avoided, the processing environment is cleaner, the interference of the sweeps on equipment and operators is reduced, and a guarantee is provided for safe production.

A process is described for synthesising hydrocarbons comprising the steps of: (a) feeding a gas mixture comprising hydrogen and carbon dioxide to a reverse water-gas shift unit to form a crude synthesis gas comprising hydrogen, carbon monoxide carbon dioxide and steam, (b) cooling the crude synthesis gas to condense water and removing water, and optionally carbon dioxide, from the crude synthesis gas to produce a feed stream comprising hydrogen and carbon monoxide, (c) passing the feed stream though a hydrocarbon synthesis unit comprising a reactor containing a Fischer-Tropsch catalyst to form a product stream comprising a mixture of liquid hydrocarbons, a co-produced water stream, and a tail gas stream containing hydrogen, carbon monoxide and gaseous hydrocarbons, and (d) upgrading the product stream in an upgrading unit to produce an upgraded product stream, wherein a naphtha stream is separated from the product stream or the upgraded product stream, at least a portion of the tail gas stream is fed with steam to a first derichment vessel containing a derichment catalyst to form a first gas mixture containing methane, at least a portion of the naphtha stream is fed with hydrogen and steam to a second derichment vessel containing a derichment catalyst to form a second gas mixture containing methane, and the first and second gas mixtures containing methane are fed to the reverse water gas shift unit. A system for performing the process is also provided.