[email protected]

Get Quote


  1. Home
  2. Crushing Plant
  3. fine ground limestone as a buffer

fine ground limestone as a buffer

Oil-field brines, a by-product of oil and natural gas extraction whose fate is mainly disposal, is gaining attention for the storage of CO2 into geologically stable mineral carbonates. The suitable pH range for the formation of carbonates is 7.8 or higher, where CO32− dominates. Therefore, to boost the precipitation of mineral carbonates by reaction between brine and CO2, the pH of the brine must be modified before any brine-CO2 interaction takes place. In this work, pH stability studies were conducted to study how synthetic brines respond in the presence of a natural limestone host rock or a tris buffer solution in both closed and open atmospheres and to evaluate the efficiency of both buffers at increasing brine pH. An aqueous and solid speciation model was used to investigate the influence of the buffer used in the aqueous and solid speciation of two synthetic brines. pH stability studies identified that both buffers can enhance brine pH, being tris buffer the one with the strongest buffer efficiency. Both XRD and geochemical modelling results suggest the suitability of brines containing SO42-and the use of both host rock and tris buffer, respectively, to enhance oil-field brines pH for mineral carbonates precipitation Learn More

The estimated price of the service

Price Quotation: 100% China factory price, prices vary from models. Click for specific price.

Get Quotes

The reasons for choosing us

Company Strength: The company possesses 40 years of production experience and three large-scale factories, as well as exports to more than 160 countries. There are abundant hot-selling projects accessible to you.

Our Service: 24/7 online customer service, free customized solution from our engineers, field visiting of China industries, training support after the delivery of goods, 365 days of online after-sales service, and post-maintenance plan.

Cheap and environmentally friendly: Factory-direct sale, fast delivery with guaranteed quality at factory price, in line with the concept of environmental development.

News & Blogs

Related News