Industrial symbiosis: CO2 utilization by producing disodium octaborate tetrahydrate and baking soda from borax
Yükleniyor...
Dosyalar
Tarih
2023
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Amer Chemical Soc
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
This paper proposesa novel method for CO2 capture,utilization, and sequestration (CCUS) with borax producing disodiumoctaborate tetrahydrate (Na2O & BULL;4(B2O3)& BULL;4H(2)O & EQUIV; Na2B8O13 & BULL;4H(2)O, DSOBTH) equivalent boron compoundsand sodium bicarbonate (NaHCO3). We tested the performanceof this method experimentally using aqueous ammonium (NH4 (+)) solutions in a pressurized reactor (1 L) continuouslypurged with pure (99.9%) CO2. Experimental parameters werechanged as temperature (T), 45-65 & DEG;C; solid-to-liquidratio (SLR), 0.69-0.92 g/mL; reaction time (t), 30-60 min; pressure (P), 5-30 bar;NH3 concentration (AC) 2.82-5.65 M; and steeringspeed (SS), 500 rpm. The results showed that P and T were highly influential on the performance. The best conditionsfor CO2 utilization were found as P =20 bar; T = 60 & DEG;C; SLR = 0.77 g/ml; t = 50 min; and AC = 4.76 M. Per ton of tincal, under theseconditions, produced were 0.274 ton of DSOBTH (& SIM;67% B2O3), 0.216 ton of NaHCO3 (& SIM;95% purity),0.386 ton of avoided boric acid, and 0.417 ton of avoided CO2. The total potential added value can be about $1100/ton of tincal.
Açıklama
This work was supportedby a grant from the Scientific Research Projects funding Scheme of Ataturk University, Erzurum, Turkiye [grant number: 2010/218].
Anahtar Kelimeler
Boric-Acid, Optimum Conditions, Carbon-Dioxide, Mineral Carbonation, Sodium Pentaborate, Flue-Gas, Capture
Kaynak
Industrial & Engineering Chemistry Research
WoS Q Değeri
Q2
Scopus Q Değeri
Q1
Cilt
62
Sayı
Künye
Çopur, M., Şenol, A. M., Pekdemir, T., & Onganer, Y. (2023). Industrial Symbiosis: CO2 Utilization by Producing Disodium Octaborate Tetrahydrate and Baking Soda from Borax. Industrial & Engineering Chemistry Research, 62(34), 13340-13354.
