Straw green electricity ecological new city "carbon" new road

Based on the situation that there are small boilers for self-heating and gas supply in surrounding enterprises, at present, Zhanjiang Biomass Development Company relies on its own green energy advantages and the demand for heat and steam of enterprises in Bainipo Industrial Park of Suixi County to plan the construction of park heating projects and accelerate the construction of heating pipe network.

According to reports, through the use of clean green energy heating, compared with the user's self-built boiler heating, can save a lot of coal, and correspondingly reduce a lot of soot, sulfur dioxide, nitride emissions, in order to achieve economic and ecological win-win. After the current heating network is completed and operated, the steam demand of enterprises in the initial project park is about 50t/h, and the annual heating hour is estimated by 3000h and the low heat value of standard coal is 29307.6kJ/kg, which can save 3405 tons of standard coal every year.

In the hot land of Suixi, an experiment to explore innovative carbon reduction and carbon sequestration is being carried out - microalgae carbon sequestration technology. At present, Zhanjiang Biomass Power Generation Company is carrying out the construction of micro-algae carbon sequestration demonstration project covering an area of 2000 square meters, and will build the largest micro-algae direct fixed power plant flue gas carbon dioxide demonstration project in the province to achieve negative carbon emission effect, and carry out diversified applications after completion.

The so-called microalgae carbon sequestration is a kind of carbon dioxide bioutilization technology, which refers to the use of efficient photosynthesis of microalgae to convert carbon dioxide into the corresponding biomass resources. As carbon sequestration organisms, microalgae have the advantages of high photosynthetic rate, rapid reproduction, and strong adaptability to the environment, which is equivalent to 10-50 times the carbon sequestration capacity of forests, and can grow in a variety of water environments such as fresh water, oceans, saline-alkali lakes and industrial and agricultural wastewater. Generally, the normal growth of microalgae can fix about 1.8 tons of carbon dioxide per 1 ton of biomass raw materials, and the output per unit area can reach 25 tons/ha/year when microalgae is cultivated in scale, and the fixed absorption efficiency of carbon dioxide can reach 50 tons/ha/year.

According to reports, the technology is an economically viable, environmentally friendly and sustainable carbon dioxide fixation technology. Aiming at the flue gas carbon dioxide emitted by power plants, a large-scale microalgae carbon sequestration engineering technology system was constructed by combining efficient carbon sequestration algae seed, efficient and low-cost photobioreactor. process control technology and disease prevention technology.

Step by step to increase the project promotion

In recent years, Zhanjiang has adhered to the concept of integrated development of industrialization, ecology and digitalization, made efforts to ecology, improved green and low-carbon policies, and green, energy-saving and low-carbon lifestyle. At the end of last year, Zhanjiang held the 22nd meeting of the Municipal Committee for Comprehensively Deepening Reform, proposing to actively participate in the construction of a new power system with new energy as the main body, promote the development and transformation and upgrading of clean and low-carbon energy, accelerate the completion and production of key clean energy projects, and promote the cleanliness of industrial electricity use.

At present, the energy construction of Suixi County is mainly power generation projects, power generation projects are mainly photovoltaic power generation, biomass power generation, hydropower and other auxiliary, and planning to build wind power projects. A touch of green electricity has "taken root" in major projects in Suixi, and this ecological civilization new city is increasing its full power to layout energy project construction.

Among them, 7 centralized photovoltaic power generation projects have been built in Suixi County, with a total installed capacity of 280MW. Five centralized photovoltaic power generation projects are under construction, with an installed capacity of 322MW, and four centralized photovoltaic power generation projects are planned and promoted, with an installed capacity of 520MW. In 2021, Suixi County is listed by the state as the whole county roof distributed development pilot, at present, Suixi County has built a total of 405 distributed photovoltaic power generation projects, with a total installed capacity of about 25MW, mainly for industrial and commercial plant distributed photovoltaic power generation projects, rural poverty alleviation distributed photovoltaic power generation projects and residential roof distributed photovoltaic projects.

The relevant person in charge said that the next will actively follow up the construction of Suixi County energy projects, increase project promotion efforts, improve energy self-supply capacity, cope with the summer peak electricity consumption, promote the addition of wind power projects and regulations, and achieve zero breakthrough in Suixi County wind power projects.