The purpose of carbon capture and sequestration (CCS) is to reduce CO₂ emissions from the use of fossil fuel. In this article, the effect of seeding on the Dead Sea water (DSW) CO₂ storage capacity was investigated. Three types of seed particles were used: rocks from the bottom of the DS, amorphous silica, and quartz sand; the influence of each type on the storage capacity of DSW toward CO₂ was studied. When seeds were added to DSW during or after CO₂ injection, different solid precipitates were formed depending on the seed type; with rock seeds collected from the DS basin, calcite and dolomite precipitates were formed, while aragonite, magnesite, and monohydrocalcite were precipitated when amorphous silica was used as seed. Quartz sand was used as received and also after acid washing; aragonite, magnesite, and monohydrocalcite were precipitated on the as-received sand, while no precipitate was observed on the acid-washed quartz sand. It was concluded that carbonate precipitation followed the crystal structure of the seed; the main condition for the overgrowth of one crystalline phase over another was crystal lattice compatibility. The crystal structure of the purified quartz was not found to be a good seed to the overgrowth of calcium or magnesium carbonate.

中文翻译：

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播种对盐水中二氧化碳储存的影响：死海水案例研究


碳捕获和封存 (CCS) 的目的是减少使用化石燃料时产生的 CO ₂ 排放。在本文中，研究了接种对死海水 (DSW) CO ₂ 储存能力的影响。使用三种类型的种子颗粒：来自 DS 底部的岩石、无定形二氧化硅和石英砂；研究了每种类型对 DSW 对 CO ₂ 存储能力的影响。当在 CO ₂ 注入期间或之后将种子添加到 DSW 中时，根据种子类型形成不同的固体沉淀物；使用从 DS 盆地收集的岩石晶种，形成方解石和白云石沉淀物，而当使用无定形二氧化硅作为晶种时，则沉淀文石、菱镁矿和一水方解石。石英砂按原样使用，也可在酸洗后使用；原砂上有文石、菱镁矿和一水方解石沉淀，而酸洗石英砂上没有观察到沉淀。结论是碳酸盐沉淀遵循晶种的晶体结构；一种晶相相对于另一种晶相过度生长的主要条件是晶格相容性。未发现纯化石英的晶体结构是碳酸钙或碳酸镁过度生长的良好种子。