Economic analysis of biomass gasification for green methanol production under different carbon emission reduction scenarios

HE Shumin; PENG Wanwang; WANG Xueyun

doi:10.12434/j.issn.2097-2547.20240370

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Economic analysis of biomass gasification for green methanol production under different carbon emission reduction scenarios

更新时间：2025-06-23

- Economic analysis of biomass gasification for green methanol production under different carbon emission reduction scenarios
- Vol. 50, Issue 6, Pages: 89-96(2025)
- 作者机构：
  
  1.煤炭科学技术研究院有限公司，北京 100013
  2.中国煤科低碳技术研究院，北京 100013
  3.国家能源煤炭高效利用与节能减排技术装备重点实验室，北京 100013
  4.煤炭科学研究总院，北京 100013
- 作者简介：
- 基金信息：
- DOI：10.12434/j.issn.2097-2547.20240370
  CLC： TQ223.121;TK6
- Received：03 September 2024，
  
  Revised：06 November 2024，
  
  Published：25 June 2025
- 稿件说明：
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贺树民,彭万旺,王学云.不同碳减排下生物质气化制绿色甲醇的经济性分析[J].低碳化学与化工,2025,50(06):89-96.

HE Shumin,PENG Wanwang,WANG Xueyun.Economic analysis of biomass gasification for green methanol production under different carbon emission reduction scenarios[J].Low-Carbon Chemistry and Chemical Engineering,2025,50(06):89-96.
贺树民,彭万旺,王学云.不同碳减排下生物质气化制绿色甲醇的经济性分析[J].低碳化学与化工,2025,50(06):89-96. DOI： 10.12434/j.issn.2097-2547.20240370.

HE Shumin,PENG Wanwang,WANG Xueyun.Economic analysis of biomass gasification for green methanol production under different carbon emission reduction scenarios[J].Low-Carbon Chemistry and Chemical Engineering,2025,50(06):89-96. DOI： 10.12434/j.issn.2097-2547.20240370.

摘要

“双碳”背景下，为评估生物质制绿色甲醇经济性，对3种生物质气化制绿色甲醇方案（方案2在方案1基础上耦合了绿氢，方案3在方案2基础上进一步利用了前段工艺产生的CO

）进行了研究。假定生物质日处理量为2000 t、绿电价格为0.20 CNY/(kW

·h)、绿氢价格为1.1 CNY/m

和绿色甲醇销售价格为4500 CNY/t，考察了生物质价格对生物质气化制绿色甲醇方案年净利润、投资回收期、单位绿色甲醇运行成本和生产成本的影响。结果表明，当生物质价格为300 CNY/t，方案1年净利润、上缴所得税和投资回收期分别为5.53 × 10

CNY/a、1.84 × 10

CNY/a和4.4年，方案2分别为7.80 × 10

CNY/a、2.60 × 10

CNY/a和4.7年，方案3分别为9.37 × 10

CNY/a、3.12 × 10

CNY/a和5.2年。方案1单位绿色甲醇运行成本最低（1387 CNY/t），单位甲醇生产成本为1925 CNY/t。方案3绿色甲醇产量最高（67 × 10

t/a），生物质价格相同条件下，方案3的年净利润、上缴所得税均高于方案1和方案2。方案1、方案2和方案3盈亏平衡点处绿色甲醇销售价格分别为1925 CNY/t、2433 CNY/t与2635 CNY/t。方案1年排放CO

最高（56.3 × 10

t），方案3工艺过程能够实现近零碳排放，当碳税价格为79.42 CNY/t，相较方案1、方案2，方案3年节省碳税支出分别为4470 × 10

CNY/a、1950 × 10

CNY/a。

Abstract

Under the “carbon peaking and carbon neutrality” background

the economic feasibility of biomass-based green methanol production was evaluated. Three biomass gasification-based green methanol production schemes were considered (Scheme 2 couples green hydrogen with Scheme 1

and Scheme 3 further utilizes the CO

generated in the front-end processes of Scheme 2). Assuming a biomass daily processing capacity of 2000 t

green electricity price of 0.20 CNY/(kW·h)

green hydrogen price of 1.1 CNY/m

and green methanol sales price of 4500 CNY/t

the impact of biomass price on the annual net profit

investment payback period

unit operation cost and production cost of green methanol production was investigated. The results show that when the biomass price is 300 CNY/t

Scheme 1 achieves an annual net profit of 5.53 × 10

CNY

income tax payments of 1.84 × 10

CNY and an investment payback period of 4.4 years. Scheme 2 achieves an annual net profit of 7.80 × 10

CNY

income tax payments of 2.60 × 10

CNY and a payback period of 4.7 years. Scheme 3 achieves an annual net profit of 9.37 × 10

CNY

income tax payments of 3.12 × 10

CNY and a payback period of 5.2 years. Scheme 1 has the lowest

unit operation cost for green methanol (1387 CNY/t)

and the unit production cost is 1925 CNY/t. Scheme 3 produces the highest amount of green methanol (67 × 10

t/a)

and under the same biomass price conditions

it results in higher annual net profit and income tax payments than Schemes 1 and 2. The break-even green methanol sales prices for Scheme 1

Scheme 2 and Scheme 3 are 1925 CNY/t

2433 CNY/t and 2635 CNY/t

respectively. Scheme 1 results in the highest CO

emissions (56.3 × 10

whereas the process in Scheme 3 can achieve near-zero carbon emissions. When the carbon tax price is 79.42 CNY/t

Scheme 3 saves carbon tax expenses of 4470 × 10

CNY/a and 1950 × 10

CNY/a compared to Scheme 1 and Scheme 2

respectively.

关键词

Keywords

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Related Institution

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