-
(PDF) Silica removal performance of seed from geothermal ...
The silica gel seed method is based on the polymerization reaction between the silica gel surface and silicic acid in geothermal water, so the reaction products are useful as highquality silica ...
Get Price -
Geothermal Energy Future Development
medium to hightemperature (>120°C or so) producing wells with a sufficient water cut; ... (such as lithium, zinc, high grade silica and in some cases, gold). Technological and Process Challenges in Enhanced Geothermal Systems . Enhanced Geothermal Systems (EGS) require innovative methods, some of which are also applicable to power plants and directuse projects ased on hydrothermal ...
Get Price -
Silica Extraction and Cleaning from the Solution of ...
Silica extraction from the solution of geothermal plants and its cleaning for marketable product obtaining is one of the directions. INTRODUCTION Today the problem of rational energy and thermal energy efficiency is of great interest. Traditional methods of energy production at the hydropower plants and thermalpower plants are known, but lately the tendency of untraditional power sources use ...
Get Price -
Treatment of geothermal waters for production of ...
· The oil, gas and geothermal industries, for example, extract massive amounts of brine and water from the subsurface, most of which are injected back into underground formations. Holistic approaches to water management are being adopted ever more frequently, and produced water is now being considered as a potential resource. In the oil and gas arena, attempts have been made to .
Get Price -
Conversion of geothermal waste to commercial products ...
· A process for the treatment of geothermal residue includes contacting the pigmented amorphous silicacontaining component with a depigmenting reagent one or more times to depigment the silica and produce a mixture containing depigmented amorphous silica and depigmenting reagent containing pigment material; separating the depigmented amorphous silica and from the .
Get Price -
Asphalt
Asphalt, also known as bitumen (UK: / ˈ b ɪ tj ʊ m ɪ n /, US: / b ɪ ˈ tj uː m ə n, b aɪ/), is a sticky, black, highly viscous liquid or semisolid form of may be found in natural deposits or may be a refined product, and is classed as a the 20th century, the term asphaltum was also used. The word is derived from the Ancient Greek ἄσφαλτος ásphaltos.
Get Price -
Geothermal Energy | SpringerLink
· The term geothermal comes from the Greek word geo, meaning earth, and thermal, meaning heat. Geothermal energy can be used for a variety of appliions including electricity generation, heating buildings, and in heat pumps. In this chapter, we discussed various methods of harvesting and utilization of geothermal energy.
Get Price -
Indonesia: PGE To Evaluate Green Hydrogen Production At ...
· Pertamina Geothermal Energy (PGE) is looking at the geothermal field of Ulubelu for a pilot project to develop green hydrogen production. Indonesian stateowned PT Pertamina Geothermal Energy is exploring the developing of green hydrogen production and the extraction of rare earth metals with its geothermal operations, so an article by KataData.
Get Price -
Stanford Geothermal Workshop Schedule
10:45 am SESSION 2(B) RESERVOIR ENGINEERING 1 Chair: Abdurrahman Satman (9) "Roosevelt Geothermal Field, Utah – Reservoir Response after more than 25 years of Power Production," Rick ALLIS and Garth LARSEN [] (10) "Downhole Monitoring During Hydraulic Experiments at the InSitu Geothermal Lab Groß Schönebeck," J. HENNINGES, W. BRANDT, K. ERBAS, I. MOECK, A. .
Get Price -
United States (2) Patent Appliion Publiion (10) Pub ...
extract geothermal heat from geothermal sources, or other thermal uses known to those skilled in the art, and convert it into electrical energy. [0014] The concept of extracting heat from deep perme able strata in existing, but depleted, gas reservoirs also has been proposed. (Swift and Erdlac, 1999.) In particular, it has been proposed to introduce water into deep permeable strata to heat the ...
Get Price -
Hydraulic fracturing
Hydraulic fracturing, also called fracking, hydrofracking, and hydrofracturing, is a well stimulation technique involving the fracturing of bedrock formations by a pressurized liquid. The process involves the highpressure injection of "fracking fluid" (primarily water, containing sand or other proppants suspended with the aid of thickening agents) into a wellbore to create cracks in the deep ...
Get Price -
Control of SilicaBased Scales in Cooling and Geothermal ...
Geothermal energy utilization involves direct heat transfer between water and rock in the reservoir such that geothermal fluids are saturated in silica with respect to quartz. The kinetics of ...
Get Price -
Silica Extraction at the Mammoth Lakes Geothermal Site ...
· The Department of Energy's Office of Scientific and Technical Information
Get Price -
Amorphous silica waste from a geothermal central as an ...
· Amorphous silica was sampled from the Cerro Prieto Geothermal Power Plant loed in the city of Mexicali, Baja California. It was prepared and purified with an acid digestion extraction by using 2 mL of nitric acid DI water [1:1] per gram of silica, stirring and heating at 95 ± 5 °C for 2 h, cooling down to 20 °C and washing vigorously ...
Get Price -
Contact, Geo40 partner with Maori on worldleading energy ...
The operation will see Geo40 use its technology to extract silica from geothermal fluid used at ontact's Ohaaki power station. Once extracted, the silica will be sold to manufacturers for use in everyday consumer goods, such as paint, providing an environmentallysound source of silica that would otherwise require amounts of carbonintensive energy to make. The potential volume of high grade ...
Get Price -
Lithium Brine Extraction Technologies Approaches
· Produced water from oil gas operations is an untapped source of lithium that may be more important in the future. Chemical precipitation, adsorption with inorganic ion exchange sorbents, solvent extraction and concentration with membrane technologies are the primary means of lithium recovery from brines.
Get Price -
Atlantic Geothermal, LLC: Technical Papers: Engineered ...
· Engineered geothermal systems—still in the early stages of development—create an artificial 'reservoir' deep in the earth by infusing hot dry rock with water to generate steam. The captured steam, in turn, drives turbines that yield commercialgrade electricity. Links to the conference papers are provided in the scrolling directory below.
Get Price -
Method of using composites in the treatment of wells
A well treatment composite comprising a well treatment agent adsorbed onto a waterinsoluble adsorbent may be prepared by precipitating the well treatment agent, in the presence of a metal salt, from a liquid while the well treatment agent is being adsorbed onto the waterinsoluble adsorbent. After a treatment fluid containing the composite is introduced into a well or a subterranean formation ...
Get Price -
An Improved ClosedLoop Heat Extraction Method From ...
· Disposal of produced water and induced earthquakes are two major issues that have endangered development of the geothermal energy as a renewable source of energy. To avoid these problems, circulation of a lowboiling working fluid in a closed loop has been proposed; however; since the major mechanism in this method for heat extraction is conduction rather than convection and .
Get Price