据烃加工新闻9月8日消息称,世界上最大的直接从空气中吸收二氧化碳并将其储存在地下的工厂即将开始运营,支持这一新兴绿色技术的公司表示。
专门从空气中直接捕获二氧化碳的瑞士初创企业Climeworks AG与冰岛碳储存公司Carbfix合作,开发了一座每年最多可吸收4000吨二氧化碳的工厂。
这相当于大约 790 辆汽车的年排放量。根据国际能源署的数据,去年全球二氧化碳排放量总计 315 亿吨。
直接空气捕获是为数不多的从大气中提取二氧化碳的技术之一,科学家认为它对限制全球变暖至关重要,全球变暖被认为是造成更多热浪、野火、洪水和海平面上升的罪魁祸首。
Orca工厂由8个大型集装箱组成,外观与航运业使用的集装箱相似,采用高科技过滤器和风扇来提取二氧化碳。
分离出来的碳随后与水混合,被泵入地下深处,在那里慢慢变成岩石。这两种技术都是由附近的地热发电厂提供的可再生能源驱动的。
直接空气捕获仍然是一项新兴且成本高昂的技术,但随着越来越多的公司和消费者希望减少碳足迹,开发商希望通过扩大规模来降低价格。
据国际能源署称,目前全球有15座直接空气捕集厂在运营,每年捕集的二氧化碳超过9000 吨。
美国石油公司西方石油公司目前正在开发最大的直接空气捕获设施,从其得克萨斯州油田附近的露天空气中提取100万吨/年的二氧化碳。
朱佳妮 摘译自 烃加工新闻
原文如下:
World's largest plant capturing carbon from air starts in Iceland
The world's largest plant that sucks carbon dioxide directly from the air and deposits it underground is due to begin operating, the company behind the nascent green technology said.
Swiss start-up Climeworks AG, which specializes in capturing carbon dioxide directly from the air, has partnered with Icelandic carbon storage firm Carbfix to develop a plant that sucks out up to 4,000 tons of CO2 per year.
That's the equivalent of the annual emissions from about 790 cars. Last year, global CO2-emissions totalled 31.5 billion tons, according to the International Energy Agency.
Direct air capture is align="justify"> The Orca plant, a reference to the Icelandic word for energy, consists of eight large containers similar in looks to those used in the shipping industry, which employ high-tech filters and fans to extract carbon dioxide.
The isolated carbon is then mixed with water and pumped deep underground, where it slowly turns into rock. Both technologies are powered by renewable energy sourced from a nearby geothermal power plant.
Direct air capture is still a fledgling and costly technology, but developers hope to drive down prices by scaling up as more companies and consumers look to reduce their carbon footprint.
There are currently 15 direct air capture plants operating worldwide, capturing more than 9,000 tons of CO2 per year, according to the IEA.
U.S. oil firm Occidental is currently developing the largest direct-air-capture facility, to pull 1 MMtpy of carbon dioxide from the open air near some of its Texas oilfields.